HomeMy WebLinkAbout821 Cowan Road - Approval Letter� � .•
M
PLANNING DEPARTMENT
May 5, 2006
Greg Ward
One Stop Design, Inc.
3566 Beard Road
Fremont, CA 94555
Dear Mr. Ward,
��� CITY O�
BURLJNGAME
p, s
't•o� ,90
NATm JUNE 6
The City of Burlingame
CITY HALL 501 PRIMROSE ROAD
BURLINGAME, CALIFORNIA 94010-3997
�. �
TEL: (650) 558-7250
FAX: (650) 696-3790
Since there was no appeal to or suspension by the City Council, the April 24, 2006, Planning Commission
approval of your application for a condominium conversion permit and conditional use permit for floor area ratio
became effective May 4, 2006. This application was to allow for conversion of an existing five unit
office/warehouse building to five office/warehouse condominium units at 821 Cowan Road, zoned IB.
The Apri124, 2006, minutes of the Planning Commission state your application was approved with the following
conditions:
1. that the project shall be built as shown on the plans submitted to the Planning Department date stamped
March 6, 2006, sheets L2, A.3, A.3A, A.4 through A.7, D.1, E.1, E.2, C.1, AS.1 through AS.3, C-1
through C-5, Lighting Details (8%2" x 11" sheet) and date stamped April 13, 2006, sheets T.1 and L.1,
Vesting Tentative Tract Map, and the Physical Elements Report, Physical Standards Report and
Acoustical Assemblies Report date stamped December 27, 2005;
2. that the reports required by this code, in a form approved by the city, shall be provided to each person
executing any purchase, rental or other agreement to purchase or occupy a unit in the project. Copies of
the full reports shall be made available at all times at the sales office and shall be posted at various
locations, as may be required by the city, at the project site;
3. that a new 7'-0" wide sidewalk shall be installed along the front of this property as shown on the plans
date stamped April 13, 2006, sheets T.l and L.1; the new 7'-0" wide sidewalk, curb and gutter and
driveway apron shall comply with the Public Works' construction standards and shall be installed prior to
the final inspection; the applicant shall obtain the necessary special encroachment permit to install the
curb, gutter and sidewalk and driveway apron;
4. that the applicant shall attempt to relocate the existing 12" Sycamore tree that will be within the new 7'
sidewalk; and if that is not possible then it shall be replaced with a new 36-inch box Sycamore tree; and
the applicant shall plant one new 36-inch box Sycamore tree adjacent to the relocated or replacement
Sycamore, for a total of 4 Sycamore trees (two on each side of the main walk way) at the front of the
property;
:: Register online for the City of Burlingame list serve at www.burlin�ame.org �C
�.
' . '^,,' ,
; . May 5, 2006
` 821 Cowan Road
page 2
5. that the conditions of the City Attorney's February 3, 2006 memo, the City Engineer's January 30, 2006
memo, the Fire Marshal's January 4, 2006 memo, the Chief Building Official's January 3, 2006 memo, the
Recycling Specialist's January 4, 2006, memo, and the NPDES Coordinator's January 6, 2006 memo shall
be met;
6. that the final inspection shall be completed and a certificate of occupancy issued before the close of
escrow on the sale of each unit;
7. that the developer shall provide to the initial purchaser of each unit and to the board of directors of the
condominium association, an owner purchaser manual which shall contain the name and address of all
contractors who performed work on the project, copies of all warranties or guarantees of appliances and
fixtures and the estimated life expectancy of all depreciable component parts of the property, including
but not limited to the roof, painting, common area carpets, drapes and furniture;
8. that if a security gate system across the driveway is installed in the future, the gate shall be installed a
minimum 20'-0' back from the front property line; the security gate system shall include an intercom
system connected to each unit which allows occupants to communicate with guests and to provide guest
access to the parking area by pushing a button inside their units;
9. that demolition for removal of the existing structures or walls within the condominium units and any
grading or earth moving on the site shall not occur until a building permit has been issued and such site
work shall be required to comply with all the regulations of the Bay Area Air Quality Management
District;
10. that the project shall comply with the Construction and Demolition Debris Recycling Ordinance which
requires affected demolition, new construction and alteration projects to submit a Waste Reduction plan
and meet recycling requirements; any partial or full demolition of a structure, interior or exterior, shall
require a demolition permit;
11. that the project shall be built as shown on the plans submitted to the Planning Department date stamped
February 4, 2005, sheets T.1, L.1, T.2, A.1 through A.7 and Plat of Survey;
12. that a seating area, to be azchitectural compatible with the building, shall be designed at the front entrance
to the building;
13. that vines, to grow along the front wall of the building, shall be planted and maintained by the property
owner;
14. that the windows and window trim shall be installed as shown on the detail, date stamped February 4,
2005;
15. that the parking variance shall only apply to this building and shall become void if the building is ever
expanded, demolished or destroyed by catastrophe or natural disaster or for intentional replacement;
C: Register online for the City of Burlingame list serve at www.burlingame.or� C:
� -.� •
� t � May 5, 2006
� 821 Cowan Road
page 3
16. that the conditions of the City Engineer's and Fire Marshal's June 1, 2004, memos, the Chief Building,
Official's February 9, 2005, and June 4, 2004, memos, the Recycling Specialist's June 2, 2004, memo ��
and the NPDES Coordinator's 7anuary 31, 2005, memo shall be met;
17. that payment of a Bayfront Development fee to the City of Burlingame for traffic impacts in the Inner
Bayshore and Shoreline areas shall be required to mitigate cumulative impacts of this and other projects
on area circulation, one-half of the fee is due at the time of planning application and one-half due before
the final framing inspection;
18. that one-way directional signage shall be installed and painted throughout the parking area to clearly
define the vehicular direction for employees and visitors to the site; prior to issuance of a building permit,
the applicantlproperty owner shall work with the City's traffic engineer to determine the required signage
and markings on the pavement to clearly identify the on-site vehicular direction;
19. that the driveway aisles in front of the roll-up doors at the reaz of the building and in the parking area
shall be maintained clear and trucks shall not be stored or parked in the driveway aisles;
20. that the paved area adjacent to parking space #15 shall be painted "No Pazking" to provide a clear,
unobstructed back-up area for the disabled-accessible parking spaces;
21. that the 53 on-site parking spaces shall be used only for the customers and employees of the businesses at
this site and shall not be leased or rented for storage of automobiles either by businesses on this site or by
other businesses for off-site parking;
22. that the landscaping noted on sheet L.1 shall be installed according to plan and shall be irrigated with an
automatic irrigation system; landscaping that does not survive on the site shall be immediately replaced
with an equivalent species;
23. that the property owner shall provide a complete Irrigation Water Management Conservation Plan
together with landscape and irrigation plans at time of permit application;
24. that the office/warehouse building shall be built so that the interior noise level in all areas used as office
does not exceed 45 dBa;
25. that all construction shall abide by the construction hours established in the City ofBurlingame Municipal
Code, and shall occur only between the hours of 7:00 a.m. and 7:00 p.m. on weekdays, 9:00 a.m. and 6:00
p.m. on Saturdays, and 10:00 a.m. and 6:00 p.m. on Sundays and holidays;
26. that on-site illumination shall be shielded and directed only on to the site in compliance with the City's
exterior illumination ordinance;
27. that all parking areas should be lit for safety at night, such lighting should comply with the requirements
of the City's exterior illumination ordinance;
28. that the remodeUaddition shall not be built with a reflective exterior finish;
:: Register online for the City of Burlingame list serve at v►���v.burlingame.org CC
.r ,�.
� 1 May 5, 2006
' � 821 Cowan Road
page 4
29. that the project shall obtain necessary permits to meet the standards of the required permitting agencies
including: Bay Area Air Quality Management District;
30. that the project design shall conform to all seismic related requirements of the latest edition of the
California Building Code as amended by the City of Burlingame in effect at the time a building permit is
issued and any additional seismic requirements established by the State Architect's office;
31. that all construction shall be required to be done in accordance with the California Building Code
requirements, 2001 edition, as amended by the City of Burlingame, and in addition to the limitations of
hours of construction imposed by the City of Burlingame Municipal Code (CS 18.08.035);
32. that all new utility connections to serve the site and which are affected by the development shall be
installed to meet current code standards and diameter; existing sewer laterals shall be checked and
rep�aced if necessary;
33. that water and sewer lines shall be constructed from flexible material with flexible connections with the
degree of flexibility established by the City Engineer and with his approval and inspection;
34. that in the event that there is subsidence as the result of an earthquake, the site shall be repaired as
approved by the City Engineer;
35. that all site and roof drainage shall be directed to the street frontage;
36. that low flow plumbing fixtures shall be installed and City water conservation requirements shall be met
at all times, including special additional emergency requirements;
37. that the grading plan shall be prepared by a licensed Civil Engineer and approved by the City Engineer.
All applicable requirements of the NPDES permit for the site shall be adhered to in the design and during
construction;
38. that if construction is done during the wet season (October 15 through Apri115), that prior to October 15
the developer shall implement a winterization program to minimize the potential for erosion and polluted
runoff by inspecting, maintaining and cleaning all soil erosion and sediment control prior to, during, and
immediately after each storm even; stabilizing disturbed soils throughout temporary or permanent
seeding, mulching matting, or tarping; rocking unpaved vehicle access to limit dispersion of mud onto
public right-of-way; covering/tarping stored construction materials, fuels and other chemicals;
39. that all applicable San Mateo County Stormwater Pollution Prevention Program Best Management
Practices shall be adhered to in the design and during construction, including stabilizing areas denuded
due to construction prior to the wet season; erosion shall be controlled during and after construction to
protect San Francisco Bay waters;
40. that the applicant shall submit an erosion and sedimentation control plan describing BMPs (Best
Management Practices) to be used to prevent soil, dirt and debris from entering the storm drain system;
the plan shall include a site plan showing the property lines, existing and proposed topography and slope;
:: Register online for the City of Burlingame list serve at wwtiv.burlingame.or� ::
,
�
. ���'.
May 5, 2006
821 Cowan Road
page 5
areas to be disturbed, locations of cut/fill and soil storage/disposal areas; areas with existin�egetation to
be protected; existing and proposed drainage patterns and structures; watercourse or sensitive azeas on-
site or immediately downstream of a proj ect; and designated construction access routes, staging azeas and
washout areas;
41. that the erosion and sedimentation control plans should include notes, specifications, and/or attachments
describing the construction operation and maintenance of erosion and sediment control measures,
including inspection frequency; methods and schedule for grading, excavation, filling clearing of
vegetative cover and mulch, including methods and schedules for planting and fertilization; and
provisions for temporary and permanent irrigation;
42. that all runoff created during construction and future discharge from the site shall be required to meet the
applicable San Mateo County Stormwater Pollution Prevention Program Best Management Practices for
surface water runoff and Storm Drain maintenance;
43. that all runoff in the parking lot, including runoff from the landscaped areas, shall be filtered to remove
oil and grease prior to discharge by a method approved by the City Engineer and such facilities shall be
installed and maintained by the property owner, failure to maintain such filters and facilities in working
conditions shall cause this conditional use permit to be called up for review, all costs for the annual or
more frequent inspection and enforcement of this condition shall be paid for by this project's property
owner;
44.
45.
that the phrase "No Dumping-Drains To Bay" shall be labeled on new storm drain inlets by stenciling,
branding, plaguing or casting;
that grading shall be done so that impacts from erosion and runoff into the storm drain will be minimal;
46. that each storm water inlet on the site shall be equipped with a sand/oil separator; all sand/oil sepazators
shall be inspected and serviced on a regular basis, and immediately following periods of heavy rainfall, to
ascertain the conditions of the chambers; maintenance records shall be kept on-site and maintenance shall
be as directed by the City;
47. that drainage from paved surfaces, including parking lots, driveways and roofs shall be routed to storm
water inlets equipped with sand/oil-separators and/or fossil filters, then the water shall be discharged into
the storm drain system; the property owners shall be responsible for inspecting and cleaning (vacuuming
out) sand/oil separators and changing fossil filters on a regular basis as well as immediately prior to, and
once during, the rainy season (October 15 — April 1) and as directed by the City;
48. that off-site runoff shall be diverted around the construction site and all on-site runoffshall be diverted
around exposed conshuction areas;
49. that trash enclosures and dumpster areas shall be covered and protected from roof and surface drainage
and that if water cannot be diverted from these areas, a self-contained drainage system shall be provided
that discharges to an interceptor;
50. that no vehicles or equipment shall be washed, cleaned, fueled or maintained on-site;
C: Register online for the City of Burlingame list serve at www.burlingame.or� ::
. ..
.� , ,
� � � May 5, 2006
� 821 Cowan Road
page 6
51. that methods and procedures such as sediment basins or traps, earthen dikes or berms, silt fences, straw
bale dikes, check dams storm drain inlet protection soil blanket or mats, and covers for soil stock piles to
stabilize denuded areas shall be installed during construction to maintain temporary erosion controls and
sediment control continuously until permanent erosion controls have been established;
52. that the site shall be sprayed with water to control dust during grading and construction. Construction
equipment emissions shall be in compliance with the standards of the Bay Area Air Quality Management
District;
53. that a construction fence, including a impermeable fabric/material, shall be required around the site
during construction to keep all construction debris on site; �
54. that if any trenching is proposed on the site, the applicant shall contact the San Mateo County Health
Department; if any contaminated soil is encountered, the applicant shall follow County protocol for its
disposal; and
55. that if any prehistoric or historic archeological relics are discovered during grading and construction, all
work shall be halted until the finding can be fully investigated and proper protection measures, as
determined by qualified experts, can be implemented.
All site improvements and construction work will require separate application to the Building Department. This
approval is valid for two years during which time a building permit must be issued. Generally, an extension of up
to three years may be considered by the Planning Commission if application is made before the �nd of the second
year, in accordance with the provisions of the Subdivision Map Act for a Tentative Map.
The decision of the Council is a final administrative decision pursuant to Code of Civil Procedure Section
1094.6. If you wish to challenge the decision in a court of competent jurisdiction, you must do so within 90 days
of the date of the decision unless a shorter time is required pursuant to state or federal law.
S' cerely yours,
�
gar t Monro
City Planner
821 cowan condo conv.cca
c. Konstantinos Dokos, property owner
P.O. Box 125
Millbrae, CA 94030
Chief Deputy Valuation, Assessor's Office
(PARCEL B-93 0.971 AC MOL PARCEL MAP VOL 67.40; APN: 024-401-560)
:: Register online far the City of Burlingame list serve at www.burlingame.or� :C
. �
,
. •�' ,.
� �
Date:
To:
From:
Project Comments
12/28/2005
�( City Engineer
� Chief Building Official
❑ Recycling Specialist
O Fire Marshal
❑ City Arborist
❑ City Attorney
Planning Staff
O NPDES Coordinator
Subject: Request for condominium conversion permit . for a five-unit
office/warehouse building at 819 Cowan Road, zoned IB (Inner
Bayshore), APN: 024-401-560 �
Staff Review: 1/03/2006
1. Proposed condominium map does not currently show the second level.
Submit map with second level shown in plan.
2. Stairways at the four corners of the building appear to be used exclusively by
the individual units. Provide explanation for the designation of the stairways
as common areas.
3. .In addition to the map, a plan showing the proposed utilities for the building is
required. Only one sewer lateral and one water meter are allowed for the
development.
4. The sidewalk, driveway, curb and gutter shall be replaced entirely with new.
An encroachment permit from the Public works Department — Engineering
Division is required for this work. �
5. Provide basis of bearing for the map.
6. The conditions, covenants and restrictions for this map must be approved by
the City Attorney and conform to all approval conditions and City codes.
Reviewed by: V V
Date: 1/30/2006
_ , • �"'.
, .. �
Date:
Project Comments
12/28/2005
To: � City Engineer
❑ Chief Building Official
� City Arborist
❑ City Attorney
From: Planning Staff
❑ Recycling Specialist
Qf Fire Marshal
❑ NPDES Coordinator
Subject: Request for condominium conversion permit for a five-unit
office/waretiouse building at 819 Cowan Road, zoned IB (Inner
Bayshore), APN: 024-401-560
Sfaff Review: 1/03/2006
*A deed restriction is required for coordination of infrastructure items specific to fire
, and life safety such as:
1. Fire Extinguishers Maintenance and Service �
2. Fire Sprinkler System Maintenance, Service, and Repair.
3. Fire Alarm Maintenance, Service, and Repair.
�*A conditional use restricting occupancy types to Group B and Group S-2
occupancies.
Reviewed by: �—�✓��1�
Date: y/�.-�-o�
', .
, �.�-*
.'
Date:
To:
From:
Project Comments
12/28/2005
❑ City Engineer
X Chief Building Official
O City Arborist
❑ City Attorney
❑ Recycling Specialist
� Fire Marshal
❑ NPDES Coordinator
Planning Staff
Subject: Request for condominium
office/warehouse building at
Bayshore), APN: 024-401-560
Staff Review: 1/03/2006
conversion permit for a five-unit
819 Cowan Road, zoned IB (Inner
Page 1 of 2
1) All construction must comply with the 2001 Califomia Building Codes (CBC),
the Burlingame Municipal and Zoning Codes, and all other State and Federal
requirements.
2) Provide fully dimensioned plans.
3) Provide a title block on the plans that includes the name of the owner(s) and
the name, address, and phone number of the project designer.
4) Comply with the new, 2005 Califomia Energy Efficiency Standards for non-
residential buildings. Go to http:l/www.enerqv.ca.qov/title24 for publications
and details.
5) Exterior bearing and/or non-bearing walls must be one hour if less than 20
feet from the property line. Openings are not allowed within 5 feet and must be
protected within 10 feet of the property line. (See CBC Table 5-A.)
6) Provide guardrails at all landings. NOTE: All landings more than 30" in height
at any point are considered in calculating the allowable floor area. Consult the
Planning Department for details if your project entails landings more than 30"
in height.
7) Provide handrails at all stairs where there are more than four risers.
8) Provide lighting at all exterior landings.
9) On your plans provide a table that includes the following:
a. Occupancy group for each area of the building
b. Type of construction
c. Allowable area
d. Proposed area
e. Allowable height
f. Proposed height
g. Allowable area increases taken
h. Exterior wall and openina arotection
,
'� .a�,
Date:
To:
From:
Project Comments
12/28/2005
❑ City Engineer
X Chief Building Official
O Recycling Specialist
d Fire Marshal
❑ City Arborist
❑ City Attomey
Planning Staff
❑ NPDES Coordinator
Subject: Request for condominium conversion permit for a five-unit
office/warehouse building at 819 Cowan Road, zoned IB (Inner
Bayshore), APN: 024-401-560
Staff Review: 1/03/2006
Page2of2
i. Allowable
ii. Proposed
b. Indicate sprinklered or non-sprinklered
10)Show the dimensions to adjacent structures
11)Show the distances to property lines or to assumed property lines
12)Provide an exit plan showing the paths of travel
13)Specify the total number of parking spaces on site
14)Show compliance with all accessibility regulations found in the 2001 CBC,
Chapter 11, for existing buildings including:
a. Accessible paths of travel
b. Accessible countertops
c. Accessible bathrooms
d. Accessible parking
15)Ilustrate compliance with the minimum plumbing fixture requirements
described in the 2001 CBC Appendix Chapter 29, Tab(e A-29-A.
Reviewed by:
Date: �/�/o
: �
., •. i .
�`
Date:
Project Comments
12/28/2005
To: ❑ City Engineer
O Chief Building Official
� City Arborist
❑ City Attorney
From: Planning Staff
X Recycling Specialist
� Fire Marshal
❑ NPDES Coordinator
Subject: Request for condominium conversion permit for a five-unit
office/warehouse building at 819 Cowan Road, zoned IB (Inner
Bayshore), APN: 024-401-560
Staff Review: 1/03/2006
Applicant shall submit a Recycling and Waste Reduction Plan for
approval, and pay a recycling deposit for this and all covered projects
prior to construcfion or permitting.
Reviewed by: .
Date:
/-�''v�
. �
, L,' .
�
,� .
Date:
To:
From:
Subject:
Project Comments
12/28/2005
Staff Review:
� City Engineer
� Chief Building Official
� City Arborist
� City Attorney
Planning Staff
� Recycling Specialist
� Fire Marshal
� NPDES Coordiriator
� �
Request for condominium conversion permit for a five-unit
office/warehouse building at 819 Cowan Road, zoned IB (Inner
Bayshore), APN: 024-401-560
1 /03/2006
Please ensure all contractors and subcontractors comply with the City's stormwater
NPDES permit and implement the conditions of approval relating to stormwater
pollution prevention program as listed on Plan Sheet C.1, submitted to the Planning
Department on 12/27/05.
I Reviewed by: :�
Date: �( �I�
� �
w��
�' ,
.,-,'
! ��
�
, .
�/�ONESTOPDESIGN
From: OneStopDesign, Inc.
Design and Engineering Services
3566 Beard Road
Fremont,. CA 94555
510-794-7993 (voice), 510-794-4178 (fax)
RECEIVED
DEC 2 7 2005
cmr oF BURUNc�►nnE
PLAIVNING DEPT.
26.32.40 Physical Elements Report for 819 Cowan Road Condominium Conversion
The entire Project is bein bg uilt per current California Buildin� and Fire Codes
As of the date of this Submission, the building is currently under construction, with the following
components being included:
�a) .
1. The building is being constructed with one-hour construction throughout
2. Resilient channel and foaming of penetrations will be installed per USG specifications
included. �
3. Each unit will be sepazately sprinklered for fire.
4. Each unit will be separately wired and metered for electricity, phone, IT, cable, etc.
5. Each unit will be separately plumbed and metered for water.
� 6. Each unit will be independently heated, and where applicable, cooled, per Title-24.
7. All interior walls and floors will be insulated for energy efficiency and sound.
8. All new glazing will be energy compliant with Title-24.
(b) As there are no existing party walis etc., the building is being constructed with 1-hour
construction and methods of acoustical engineering per USG standards included.
(c) No report on utilities is necessary, as the current building permit has included separate
utilities for each unit.
(d) Current Planning Commission approved parking plan will remain unchanged.
(e) Structural Calculations aze included in the current Building Department approved plans/.
(� There is a current Soils Report on file for this Project. .
..(g) No repairs are necessary as the Project is all new construction.
(h) All easements, utilities, arid off-site requirements are currently on file, and reflected in
these documents being submitted.
�
. r
,i `
: �.
Y�
�)�
26.32.50 Additional Submittals �
(a) The Project's current Owner will submit Draft CC&R's at a later �date. �.
(b) Demographics: �
1. Unit Breakdowns: Each unit has a lower warehouse area with two bathrooms,
that aze ADA accessible. T'he upper floor of each unit contains open office space
with access to common ADA restrooms and a eommon eIevator sized per City of
Burlingame Fire Department specs.. The individual unit breakdowns axe as
follows:
� a. Unit 1:
� Upper floor = 2118 sq. ft.
Lower floor = 2475 sa. ft.
Tota1 = 4593 sq. ft.
b. Unit 2:
Upper floor =1879 sq. ft.
Lower floor = 2637 sq. ft.
Total = 4516 sq. ft.
c. .Unit 3:
� Upper floor =1717 sq. ft.
Lower floor =1894 sq. ft.
� Total = 3611 sq. ft.
d. Unit 4:
Upper floor =1740 sq. ft.
Lower floor = 2637 sq_ ft.
Tota1 = 4377 sq. ft.
e. Unit 5:
Upper floor = 2121 sq. ft. _
Lower floor = 2447 sq. ft.
Total = 4568 sq. ft.
f. Common areas: (Building only, NIC decks)
Upper floor =1580 sq. ft.
Lower floor =1478 sq. ft. .
Tota1 = 2058 sq. ft.
2, There is no rental rate history. for this Project, as the use and construction are new.
3. T'here is no vacancy rate for this Project. The prior use of the building shawed it
to be leased fa11-time for the last 10 years+.
4. N/A � .
5. Sales prices for the Units is unknown at this time.
6. Common Fees will be fixed at the time of filing, of the Draft CC&R's.
7. Owner is fmancing his own Project.
8. No tenants currently occupy this Project, as it is under construction.
(c) There are no current tenants.
(d) There are no current tenants. �
(e) This section is for Planning Staff to determine.
�' ,
• � ,
.a� . '
�,`� . ,
� . .
26.32.060 Accentance of reports.� Owner agrees to this requirement.
26.32.070 Couv to Buyers. Owner agrees to this requirement.
- 26.32.080 � Physical Standards for condominium conversion.
� (a) Adequate Physica[ Conditions. Owner agrees to finish the Project according to the �
Burlinga.me Municipal Code, including all building and fire codes. No corrective work
is necessary, as this is all new construction.
(6) Specific Physicat Standards. �
(1) Fire Prevention — Smoke Detectors and Sprinklers. Each Unit will be provided
.. with a, separate fire sprinkler system designed by a licensed C-16 �subcontractor,
and approved detectors.
(2) Sound Transmission.
(A) Shock Mounting of Mechanical Equipment. All permanent
mechanical equipment, such as motors, compressors, pumps; etc.
which aze determined to be a source of structural �+ibration or
• structure-borne noise sha11 be shock mounted with inertia blocks or
bases andlor vibration isolators in a manner approved by the chief
. building official.
(B) Noise Standards. The current Project will conform to all exterior and
interiar sound transmission standards of the CBC and the City's
�. General Plan. Additionally, the USG construction methods attached
to this submission will apply where possible.
(3) Utility Metering.
� (A) Each Unit sha11 be separately metered for Gas, Electriciiy, and water.
Additionally each Unit will be provided with separate runs for phone,
cable, and IT wiring.
(B) Each Unit will be provided with sepazate interior subpanels per
� electrical plan submitted. �
(4) Private Storage Space. As these are commercial units, with large warehouse
areas, there should not be a storage space issue.
(5) Laundry Facilities. N/A
(6) Landscape Maintenance. A monthly landscape fee sha11 be atta.ched to each
Unit's Common area fee. See landscape plan submitted.
(7) Condition of Equipment and Ap�liances. All mechanical equipment will be
new and specified when units are sold. �
(8) Refurbishing and Restoration. Building sha11 be �finished according to approval
by Planning Commission, and conditions applied.
26.32.85 Minimum Requirements.
(a) Parking. See Parking Plan approved by Planning Commission.
(b) Access, vehicular dr�iveways, and parking areas. See site plan approved by
Planning Cornmission. See Parking Plan approved by Planning Commission.
(c) Side setback requirements. See approved Site Plan.
(d) Conditions, Covenants and Restrictions Agreements. See Drat� CC&R's submitted
by Owner. � � �
(e) Landscaping and Open Space RequiremenZs. See Sheet L.2 (Landscape plan)
submitted with this application.
, ,.
.:,,.
. ,: . �
a�
. ..
,>` .
..
�fl
. . . 26.32.100
(a)
�)
. i�)
. � �d�
�e)
26.32.110
(a)
. �)
. (c)
(d)
Project Plans and Submittals. Within the plans submitted, the following are
included. �
(1) Separate gas and electric meters�and separate water shutoffvalves; individual
climatic controls, zoned per fmal Purchaser requirements. �.
(2) All mechanical equipment will be shock mounted to reduce sound transfer.
(3) Flexible connectors for electrical and plumbing connections will be included.
(4) Sound levels sha11 satisfy a11 State standards and the USG Acoustical.
Assemblies data. suppTied.
(5) We will provide any additional reports required by the City.
Hearin� Considerations.
There are no current tenants.
As this is a commercial,conversion, there are no issues that would�be detrimental to
the health, safety, or general welfare of the communiiy.
This section should not apply, again; due to the commercial nature of this appIication,
and the fact that it a commercial conversion. �
This section should not apply, again; due to the cominercial nature of tlus application,
and the fact that it a commercial conversion. � �
This section should not apply, again, due to the commercial nature of this application,
and the fact that it a commercial conversion.
Findings. .
To the best of our knowledge, all provisions for conversion and the filing of the
subdivision map have been met.
As this Project has a recent prior approval of the Planning Commission, and after
conversion, the use will remain unchanged, we feel the conversion is consistent with
the City's General Plan.
The proposed conversion.will conform to all Codes and Conditions required by the
City. � �
'The prior submitted and approved design, along with Conditions put forth by the City
will remain unchanged.
.`,�f`. �` -
�1 � '
�
! �
.. . . . ��i'i
i
W
�I�IIi �� �� � �� ���I�.
„ �,�
'��`'' F 'I If'�
,
. � �' �
. `::�:.u.
� � � :��:�.
. . _ - �:�,��4g ;:�;�;.
. :���.:: �h:,
,.,
. :; �` _ :�;�,: �
.. �
... .. ... , .
. . . _ _ " ;�,��
- ;:;.:
.. . --. ". "=�:��:��
. cous
�
lca
■
�
�.
=; ��:
RECEIVED
DEC 2 7 2005
CIT,�;��,��JRLINGAME
g� 1? L"�Nl�i I t�3 �. D E PT.
�'.�•. � �.. .
� , • �- �. . . . �
A measureme�t of how well speech can be understood in a space. Hfgh AI is desirable in spaces such as auditorfums
and theaters and can be achieved with a combination of materials and design details that strategically reflect and
absorb sound. Reduced AI is desirable for spaces such as open offices, where many people must work indeperrdemly.
and In flnanciai and healthcare facilities, which are subject to federal privacy rules; sound masking can be used to
reduce Ai (see the next page for more information).
Absorption
Articulation index (AI}
Ceiling Attenuation - A measurement of the ability of a ceiling panel to block the travel of sound from an enciosed room up into the plenum
� Class (CACJ � and down to adjacent spaces. High-CAG ceiling panels can provide this type of sound controi, increasing speech
• privacy In private spaces and retlucing tlistrac[ions to those outside.
. Conductivity
. Def initions
�
Like most specialized fields, the science of acoustics has a language
all its own. Some of the most important terins and concepts �to be familiar
�with include: � �
Percentage of sound waves that a materfal transforms into heat energy antl thereby does not reflect back iMo the space.
The ability of a material to transmft sound waves. In addition to moving tFirough air, sound waves can travel even more
easily through many solid objecis. For example, sound waves move through air p0'� at Just 1,128 feet per second
but travel about 10 Umes faster (11,700 feet per secondj through wood, and faster still (18,000 feet per seconc� through
steel.Therefore, desfgners must consider not onfy airbome sound, such as voices and ringing telephones, but also
structure-bome sound created by footfall, doors opening and closing, and building systems such as elevator machinery
and HVAC equipment. � .
DiNraetion The bending of sound waves around objects or through small spaces and openings with little energy loss. Spaces
around doors, floor tracks, elechical boxes, and conduit and HVAC ducting are typical channels for sound diffraction.
These spaces should be filled with acoustipl sealant to prevent unwanted sound from intru�ng into adjacent spaces.
-Flanking Paths
Small gaps and openings around doors, floor tracks, etecirical boxes, and conduit and HVAC ducting that aliow sound
to pass through if not filled with acoustical sealant Aiso called 'lealdng paths."
impact isolation Measuremer� of the ability of a floor/ceiling assembly to isolate sound from footfail and other impact sources,
Class pIC) reducing the intrusfon of noise into roomsdirecUy below.
`;Noise Reduction Measurement of the ability of a material such as an acousticat ceiling panel to absorb sound energy in the frequency
Goefficient (NRC) range of 250 Hz to 2,000 Hz (see "pitch" for mae ir�ormaiion). High-NRC ceiling panels p�ovide this type of sound
control, which is important for large spaces such as open-plan offices.
5 USG Acoustica! Assemblfes
. ,�,�, 1
y � •
. .
Pitch
_ Refleciion
• Reverberation
• • •
efinition� �
The oscillation rate of a sound wave, which travels as a small pressure change altemating above and below the static
(at res� state of the conducting.material. Each cycle of compression and re-expansion is a wave. The number of
waves occur�ng per second is the frequency, which is measured as hertr (Hz); one Hz equa{s one cycle per second.
A sound's pitch rises as its frequency increases. The human ear can discem sounds ranging from approximately
20 Fiz to 20,000 Hz. Human speech ranges beiween 125 Hz and 4,000 Hz:
Sound that persists in an enclosed space by reflecting off surfaces in the room.
Sound Masking A carefuliy engineered sound spectrum similar to that of softly blowing air, which is amplified through speakers to rafse
the ambient sound level, "masking" conversations and background no(se. In enclosetl rooms, sound masking increases
speech privacy by lowering the articulation index, preventing conversations from being overheard.
Sound Transmission
Class {5TC)
Transmission
Uoiume
Measurement of the ability�of a wall or floor assembty to isolate airbome sound and prevent it from passing from one
side to the other.
The passage of sound waves from its source, through a vibrating medium, and to a Iistener. "Airbome sound" passes
through a space by �n'brating the air. "Sbucture-bome sound" travels through wail partitions, ceilings and floor/ceiling
assembGes. .
The bouncing of sound waves off any hard, smooth wall, ceiling or floor surface, making them audible beyond ihe
immetliate area of the source. The shape of surtaces also affects where sound may travel. Concave surfaces
concenVate or focus sound, while comrex surtaces can disperse sound in multiple directions.
The loudness of a sound—how much the amplitude of a sound wave exceeds the static pressure of the conducting
medium—as measured in decibels (d6�. The higher the decibel level, the greater the volume. Noise from a jet plane
has an amplitude of 140 d6, while a iiuman whisper is approximately 20 d6. Sound in a typical office errvironment •
reaches 40 dB to 60 dB. Volume doubles with each 10 d6 increase in sound energy.
6 US& AcousSca! AssCmblies
� � ' \ • � . . . . . , . .
� � � �� .. . � . .
� � � �om onents
P.
� Acoustically-rated systems have been comprehensively tested for sound
control. Substitution of any components is not recommended or
� supported by USG. Refer to the material safety data sheet for each
� product for complete health and safety information.
US6 Acoustical Ceiling Panels �
—Availabfe with high NRC, CAC, and combination NRC/CAC raUngs
—Provfde stylish and effective sound eontrol in a full range of commerciat applications including retail, healthcare,
fiospitality, educational and office settings
—Combine top-rated acoustiql performance with durability, high light reflectance and a range of textures to
complement arry d�cor
— Many feature the ClimaP/usTM Non-Sag Warra�rty
—Cast ceiling panels provide unparalteled strength and integral color to mask nicks and scratches for long service life
and low i'rfecycle costs
—Select panels provide antimicrobfal treatrnent for tiue protection agalnst mold
For more irrformation see the following brochures: . �
Ceiling Systems Binder Ceiling Systems Desktop Reference
SC2392 SC20D0
LacoAE° S�crAa• Sound Masking
—Covers ambfent noise in large spaces so potential dlstractions are less intrusive
—Enhances speech privacy in private offices by preventing conversations from being overheard outside
—Adds acousticat balance to exceptionally quiet environments
—Each unit fs powered by 16/18 volts AC and includes a self-contained noise generator, audio amplifier, loudspeaker,
and power supply unit in an aluminum enciosure
—Supports an nptional paging system
—Allows pagirtg and masking volume to be adjusted independe�tly, and addtional central cor�rol capabilities �
are available
For more information see the foliowing brochures:
The Acoustics SnlutFon �l1 Ynu Achieve HIPAA Compliance?
SC2411 SC2412
7 US6 Acoustica! Assemblies
'�f `
. :? ' 1 •' � '' �
. ,,
�. �
Com onents � �
p
Walts and Partitions
SNe�rnocic° Brand 6ypsum Panels
—Available in thicknesses of 1/4" to 3/4" for assembGng interior partitions with one or more layers per side for effective
sound control in any application
—Steel-iramed resilieM partition systems with sound attenuation fire blanket (SAFB) in the partition cavity can achfeve up
ta 65 STC with mu�i-layer designs, up to 63 STC with double-layer designs, and up to 56 STC with singfe-layer designs
—Wood-framed resilient partftion systems with SAFB can achieve up to 59 STC with double-layer designs and up to
50 STC with single-layer designs �
—Have achieved up to 4-hr. fire-resistance ratings with 3/4" lh�ucon� Core paneis in steel-fi�amed partftion assemblies
For more information see the foliowing brochures:
Moisture-Resistant Assemblies • • Aesthetic Assemblies
SA932 SA933
S�Ernocu Gypsum Paneis Submittal Sheet
WBf 473
USG Area Separation Walis .
—Achieve up to 60 STC
—Offer 2-hr. and 3-hr. fire-resistance rafings; comply with fire-resistance requirements under evaluation reports of UL U336
—Weigh at least 50% less than masonry walis, ailowing faster, easfer instaltation
For more ir�ormation see the following brochures: �
Area.Separaffo» Wall Systems ' Area Separation Wall Submittal Sheet
SA925 W62129
� Sr�rreocu Shaft WailSjrstems
� —Tested systems achieve up to 58 STC
: =Have achleved up to 4-hr. flre-resistance ratings with multi-layer designs (UL U41�
� —Oscillation tested to 1 million cycles to ensure stn�cturat pertormance
—Feature panels with water-resfstant facings and/or mold-resistant paper and a water-reslsiant core to help minimize the
risk of moisture damage
For more ir�ormation see the foilowing brochures:
Shaft Wail Systems SxeErnoac Gypsum Liner Paneis Subrtiittal 5heet
SA926 W62278.
8 USG Rcausticat Assembiies
; tf' �,-
ti �
.`
...�.
� Components
�. . Floor/Ceiling Assembties LFveu;ocu' Floor Underlayment
. —Low-profile leveling gypsum concrete system increases tIC ratings by as much as �13 points when used with
�. LEvaRocic'" SRB"' sound reduction board or SRlui-25"' sound reduction mat
� —Improves sound co�trol in nominal wood joist, engineered f-joist, open-web truss, and concrete floor systems
. —Provides 1- and 2-hr. fire-resistance ratings for wood=framed floodceiting assemblies, and 4-hr. ratings for precast
. concrete assemblfes � �
—Available in an unmatched range of compressive strengths from 2,500 to 8,000 psi '
. For more information see the following brochures:
Floor Underlayment Systems High-Sbength Flooring Solutions
. SA305 . IG1503 .
SRM-25 Sound Reduction Mat
—Low 1/4" profile aliovus use of the full range of flooring finish materials includ(ng hardwood, ceramfc tile; and marble
with smooth Vansitions between surtaces �
—Elevated .on small nodes so less than 5% of surface area makes direct contact with the subfloor
—Increases STC rating by 4-7 points and IIC rating by 8-13 points
For more information see the foliowing brochure:
LEvaRocK SRM-25 Sound Reduction Mat Subm'ittai Sheet
IG1619
SRB Sound Reduction Board
—Smooth, coated finish resists abrasion and maintains tight tolerance
—Just 3/8" thick; allows flexibility in choosing flooring materials
—Increases STC rating by 2-3 points and IIC rating by 5-8 points
For more ir�ormation see the following brochure:
LEVEi.nocK SRB Sound Reduction Board SubmittaE Sheet
IG1523
10 USG dcousticai Assemblies
,• ;'
�' ��.` f
,. ,
�:� �
Performance Testin
g
Testing provides a measurement of maximum performance potential
achieved urider controlled laboratory conditions. The actual aliility
of partitions and assemblies to control sound in real-life applications, �
however, depends on their design and tlie methods used to�install
them..Deviations from the detailing shown in this publication, substitution
of components, or damage and improper repair _or mainteriance could:
severely reduce the acoustical performance of these ins.tallations.
Testing Methods
All USG products and systems undergo exhaustive testing to ensure that They meet exacting standards. USG's product&
are Classified as to fire resistance and fire-hazard properties. As part of this protocol, Underwriters Laboratories (UL)
periotlically aud'ds production of these materials to ensure compliance w�th necessary properties. UL is an independent,
not-for-profit organization that has tested products for public safety for over a century.
Products are manufactured and tested in accordance with recognized standards. ASTM IMemational Is one of.the
largest voluntary standards development organizations in the world, and is a trusted source for technicai standards
for materials, products, systems, and services.
Testing Results ASTM C423
Sound Absorption and Sound Absorption CoefficieMs by the Reverberation Room Method measures Noise Reduction
Coefficient (NRC). This rating represents the average of a given material's sound absorption coeff(cients at four
frequencies from 250 Hz to 2000 Hz.
ASTM E1414
Determination of Sound Transmission Class by the Two-Room Method measures Ceiling Attenuation Class (CAC), tRe
sound reduction in decibels provided beiween rooms with a shared ceiling and common plenum: This rating represents
the average of the sound attenuation at four frequencies from 250 Hz to 2000 Hz.
Acousticat Ceilings Pane�s
NRC t CAC
Ea.� QauPcus 70
................................................... ......
f-�osr" QaunPtus .70
....................................... ............ .....•
liaicror�'" l2a�aPcas .90
- ................................................... ......
Maas' G.uuPius .70
SJ
...................... ....,
40
.............._-_••• •••_
�
...................... 35
CAC with Lo�ca�
Sound Masking�
45
......................:....
50
. .........................
40
. .........................
45
0
fi USG Acaustiea! Assemblies
.. . 1 ` �
} � � � a,` � � � _ �
•�
. ,� ,
_..
Performance Testin
g
ASTM E90 � � '
Standard Test Method for Laboratory MeasuremeM of Airbome Sound Transmission Loss of Building Partitions and .
Elements measures Sound Transmission Class (STG�, the acoustical isolation provided by a barrier materiaf or partition
assembly. This rating represents the average of the sound attenuation beiween iwo spaces at four frequenctes from �
250 Hz to 2000 Hz. •
. Wails and Partitions Sx�moac Brand �ypsum Panels
' Partition rype UL Designs Framing' Max. STC
�� . Mufti-Layer .............. .U419, U455 SteeVResilient Channei 65
. . ................................... . .
. . . .. ...........:. . . .. ........ ...............
: ' . Double-Layer U419, U454 83
• �. . ................................................... .................................. .................................. ...............
� � Sing�e-Layer U419, U451 �
.........•••........_ ............................. .................................. ..................•••............. ...............
. Doubl�Layer U334 Wood/ResilfeM Channel 59
• � ................................................... .................................. .................................. .50..........
. Singte-Layer U317
USG Area Separation Walls
Watl rype UL Designs STC (Tested Assemblfes)
Soifd U336 46 to 60
SxeFrnocK Shatt Wall Sysiems �
Nail Type UL Designs STC (Tes
CavitY . U415 39-58
Veneer Plasier Systems
Framing UL Designs STC Qes
Non-badbearing Steel U411, U412, U419, 40-59
U435, U448, U455
................................................... .......................••......... ....:........,
Non-loadbearing U419, U423, U440, 50-63
SteeVResitfent U451, U452, U453,
U454
....--•••••••• ............................•••...... .........•••...................... ..............
Wood U305, U314 34-46
................................................... ....................••............ .............,
Wood/Resilient U311 49-52 .
Mi�ral Fber Board
Thickness
3/8"
................
.7/16"
......••-.......
1/2"
5/8"
3/4"
micox� 3uo 6oaza Mu� 160 Board
u
STC NHC STC NRC
24 .25 22 —
................................. .......................................................................••...•••..
24 .25-.3Q
................................. .................................. ..-...............................-......_.
25 ..:.......................... :30-.35........_. 24 .30-.40
26 .30-.35 ............. .26............................. .:30-.40
....••••• ..................•••.._ .................._._....•••-•.... ..................••••,..........- ••...........
28 .30-.35 26 .55-.60
Notes
(a) Lacor+� sound masking adds the equhralent ot 10 pNMs of CAC by inaeasing ympient background sound qr 10 dB.
@) kicludes SAFB in the part�im puity.
(c� Pertormance shovm fa peRorated products.
12 USG Acoustipl Assembiies
?^ 1 �; � . - .
� � . .
� ; � • . ASTM E492 . .
•. �. Standard Test Method for Laboratory Measuremer�t of Impact Sound Transmission Through Floor-Ceiling Assemblies
� Using the Tapping Machine determines Impact Isolation Class pIC), the ablity of a floor/ceiling assembly to isolate noise
� from footsteps and other impact sources: Thls performance is tested using a tapping machine that impacts the floor of
. ,I
a"source° room and measuring the amoum of sound that comes through the ceiling of a"receiving" room located
directly below.
ig Assembties •. LFvonocK Floor underlaymeM
Sound Isolation System
. Framing Sound Barrier Floor Flntsh IIC STC
t-Joist SRM-25 Sound Carpe[ 77 65
.................................. .................................. .................................
� Reduction Mat SheetVinyi _ 55-58 60-64
.................................. .................................. ..................................
CeramicTile 54-56 60-66
.................................. .................................. .................................
Wood Laminate 52-54 60-64
................................................... .................................. .................................. .................................. ..................................
�-��s� SRB Sound . Wood Laminate 61 65
.................................. .................................. ..................................
Reduction Bbard ��ymic Tile 51 65
. . .................................. .................................. ..................................
.................•••..........._...:..................................•••............ SheetVinyi...•••...._........ �.............................. 65......................_......
TNss SRIvi-25 Sound Carpet 73 61
Reduction Mat .................................. .................................. ..................................
. Ceramic Tite 56 61
.................................. .............:.................... ......•••••.......................
Sheet Yrryl ..........:........ 55 61
•• .................•••............................. .................................. .
Truss��t .. .7fi ..............................58.............................
SheetVn1� .................. .48............................. .�.............................
13 US6 Acoustica! Assemblies
. .. . .
� �,?' ` �' ' . ' � � . .
'\ ,
� � Le �end . ..
� g
..................................:........................................................................................... _...................................................................................................................:.........
Architectural ElemeMs Architecturai Elements
�� � • � � �� � ��
This iegend contains the symbois GH studs � pohrsty�� �. yA,,:,� `^,;,;._-�,Y..-=: -:
used throughout the Architectural � " insulation
Reference Library to represem •
�. . various architectural.elements. . ..............:..... ...........••••••-•... :._..................:...........•••.._........ ...... ............. ................. __. .- ••- ....
� Prafile and cross-section views are Z-furring t Blanket �� t�� � t , j�r�€
. shownwhereappropriate,along insulation �'�'�'���°�"���� ^����r���
with architectural material symbols.
� ...................... ..............................•••-................................._ .................••••• ......................................................................
, Engineered � . Solid wall %/////////////////////////////////////
joist
� ...................... ....................... .............••-.............................._.
. PlYwaod
. ..:................ .........:............ .. .
. . . .................:...........................
�p��
...................... ...................... ..••-•-•.........._.........._..................
. . Cementboard
...................... ....................... ............................................._
Decking
................... ....................... ..............................................•-
Poured gypsum _
...................... .................:.... ...............................................
Lath
� _ ...................... ...................... ................................................
Gypsum board - - -- -
..�..
................... ...................... ......
......................................... or plaster
Wood Uuss
,_ __ .......••••.......... •••••• ................................................................
Veneer tinish "
. .................... ...................... .......................................•••......
� " T7e
Wood joisf ..... ....... .... ... ...... ..._�.
°r s�ud � . � ...................
� Conaete or ... ................ ' .........................
.... ................. ........................................... precast caicrete
... ............ .. .. ... .. _
' Steei joist �
. ................... ............:......... ................................................
� � . a stud � Ceiiing panet
Steeltruss ...... ...................... ............................................._ ...................... ...................... ................................................
�� •
u �u/ '
.........--��--� ...... ....................... ................:............:..............._
RC-1 channel �.�-
...................... ...............•••-•.. ..--•...•-•._............,••••••-....._.._..._
Furring channe! 1J' �f 11�E � � �
14 USG Rcoustical Assembiies
,
,' � •.,' ,
� � �� A
.�
Partitions . �
\�'ood Framed
�
wauucmm�
wL 7 .� .• 5✓8" Sr�oac &and Fr�cooE Core 34 � USG-30-FT-GBdi
�— _ _w_: _ _.�-: _-w-: _.-.�-. .,,,__. _�_,
Gypsum Panels or F�oac Brand Paneis Based an 16" slud spacing and
4,��„ - 2x4 wood stud.l6° a' 24" o.c. scn.wes 6" o.c.
- joirtls finished ' �
� -.- � + optional veneer plaster •37 USG-860607 .. ....................
Based on 24" stud spacing
........ ..........:...............................
. 46 BBN-700725
Based ai 24' stud spacing
and 3" mfnerai wool batt
wL 7 • 5/8" �rnoac &and F� C Core 50 BBN-760903 .
� Gypsum Panels
5i+ ��7�3 ��j'�? - Dc4 waod stud 1&" or 24" o.c. '
�t�t�i�1t���t �1i1������t3'� -3^TNs,r�s�fe.
� . _:. . ,.. : : .. _ `. ... : ` _ RG1 channei a eqirivalent one side
- joints finished
Rating � Test Number ( ARL � Index
� � :: u ��
1 hour ( UL Des U327 � � A-26 .
wt.12 • 5/8" �iaoac &and Fu�co� Care 52 USG-810218 2 hour UL Des U301 SA920 A-27
� �� �• Gypsum Panels or Sr+�moac Brand Based on same assembly (non-fire
T;;�Y',;;-=.::';::�� �;_�:::�;::�:::::;:.r .. Water-Resistant Fr�rnoe Care Gqpsum rated� witliout mfneral wool batt
6� Panels a Fm�oac Brand Panels
........ .................................................
- - - 2x4 wood studs 16" o.c. 58 USG-810219
1 ��T - -- - - Joirds finished
• optforrai veneer p�aster
Chase Walis
• 1/2" Snffraoac Brand Fr� C Cae
.;_.::..: __.. . _....�,._-...,:..::..::.._ ....
Gypsum Par�els, both a�lside both walls
double layer and inside single layer
72'/� - - ' - ' -
RAI. TL-73-224
3-if2" glass f�er
• S�8" Sl�rqtac Brand Fr�cooE Core 51 R11L-TL-69-214
Gypsum Pariels, or F�noac &and Panels ....... : .............:...........:................
- 2 rows 2x4 wood s[uds 16 o.c. on 56 USG 710120
,. separate Plates 1' apart Based on 3-1/2" tludc insulation
10'/z" - joirtts fimshed m one cavity
1' _ _ _ _ - .58 � GMNG�r3�6 . ...................
' • 5/8" Sr�rroat Brand FweCaoe C Core 47' . RAI.-A-69-211
- � w w-. Gypsum Panels or Femoac &and Panels
., ._ . . - . • ....... .......................
- ac4 woad studs 16" o.c. on 2x6 common 51 GA-NGC-2377
8, piate
� -joirdsfinished
�::;,��_=:`:_:=:;� _::�::�-:::'�_�: _�= _
20 USG Acousticai Assemblies
1 hour i GA-WP-3810
2 t�aa � GA-WP-3620
A-28
A-29
2 Fwirc I 6A-WP-3910 1 I A-30
' �.
.,
L� °4 � , ,
�`
. ..............................................
Shatt 1X�'all Systems
�
Non-loadbearing � � • � Fre per(ormance Reference
� � �• �• � � ,.
�• ,•
wt. 9 • 1/2" S+�moat Brand Fa�conE C Core � 38 U5G-0409i7 2 hour ,� UL Des U415, SA926 A-33
���;.'::.��;:��,�_:_~'_::_:'� GypsumPanels,facelayerjoirdsfinished
........ .••• ............................................... SYstem B
• 3%z" • 2-1/2" USG C-H Studs 25 gauge 24" o.c. 43 USG-040912 ' or 1W38
,_}_ s:�. �;=>.arr:: �:-_a,�;,,� �<<�.; :-.r �.-:;;�-: .1" SN�rnoac Brand Gypsum Liner Panels Based on 4" C-H sdxis 25 gauge
........ .............:..................................... .
� 48 RAL-OT 04-022
Based on 1" saund batts in cavity
.. .. . .......•••............••• ............. .
• 50.. .RAL-OT-04-019
� Based on 4" C-H studs 25 gauge with
3" mineral fiber tnsulation
wL 9 • 1/2" Sr�moac &and Fx�cooE C Core . 44 USG-040911 • 2 liax UL Des U415, SA926 A-34
. �"""""""^�""- --� �'r`--"^`=' . Gypsum Panels Based orr 4" GH studs 25 gauge System E
3Yz" ..• ,.:.:::: r: _,;�.r.: rr._ - y.._: �.� ` 2-1/2" USG GH SNds 25 gauge 24" O.C. � �q67
��,.�,,_------n----- ��:`. �.'� • 1" S�mocx Brand Gypsum Liner Panels
, ........ ::..:....... .
— joints ifnished both sides
wt.10 • 1/2" Sr�moac &and' F� C Core 53 USG-040909 2 fwur UL Des U415, SA926 A-35
Gypsum Panels applied vertiplly, Based on 4" C-H studs 25 gauge . System P
, �::':: `: ^: : �`::: - ::::� :: =� � ; �""'�� face Iayerjoints finished . with 3" mir�eral fiber insuiffifon
�:�;rr;;>� :•w,: �..�.: :::.._ ,-,. -..--.�-= — RGi resilierrt channel a equivalent
- . .,: •- ....... ...........••-•••-.................................
��.:�.�_r�.:.: ��.:
24" o.c. 58 USG=040910
• 2-1/2" USG GH Studs 25 gauge 24" o.c.. Based on 4" GH sluds 25 gauge
• 1"�moac &and Gypsum Liner Paneis wdfi additional Iayer on liner panel
sbe and 3" mineral fiber irnssulation �
23 1lSG Acoust3cal Assemblies
' �.
•� ,
y1� � t
. . � `. .
-'1
1'�'ood Framed
�
. . u�mens�ona� wmoer � � • � . Rre Pedormance
. � � i• �• � � ,• ,.
cig: wL 3 . • 5/8" �oac &and Fr�cooE Core 38 32 ' CK-6412-7 1 hair . UL Des L501
Gypsum Panels, ceiling Based on 1-1/4" nominal wood
, — 7" rwmimal wood sub and finished floor floor
— ac10 wood joist 76" o.c. ........ ....... ..... .
.. .......................•-•........
— joirds finished 39 56 CK-6412-8
• optional Levaeoac &and Fbor Based on 1-1l4" nominal wood
� tinderlayment floor, 44 oz prpet and 40 oz
+ optional 5RM-25 a SRB sound mat pad atop floaing
. . • optional veneer plaster �
' .cia.ur[.3
• 1/2" a 5/8" �raoac Brand . 47 ' 67 CK-6512-7
� Fr�co� C Cae Gypsum Panels Based on 1/2" Sr�xoac
—1-1/4" rrominal wood sub and finished &and FwEcooE C Core
floor Gypsum Panels
— 44 oz carpet and 40 oz pad atop floor
........ ....... ......................••-..........
— ac10 wood joist 16" o.c. 48 66 CK-6412-9
— RC-1 channel a equivalent Based on 5/8" SN�rrsocic
—joiMs finished &and FnEcaoe Core
Gypsum Panels
�
ARL � Indi
..'141 �
1 han' � UL Des L514 � � B-B
dg. vut. 3 • 5/8" 51i�moac &and Fu�cooe C Core 59 USG 7407Q4 1 hour UL Des L516 SA920 B-7
6ypsum Panels Based 3" minerat wool batt,
—1-5J8" perlite-sand concrete 3/4" gypsum conaete and 1/2"
125/a' . — dY� subfloor �ir+oac Brand F�con� C
— 2x10 wood joisLs 7 6" o.c. Core Gypsum Panels •
— RC-1 channel or equivaleM ....... ....... .....................................•••..
� .�.� —joiMs finished 47 USG 740703
• opitonal veneer piaster Basetl on 3" minerai wool
clg. wL 3
bat, vinyl tile atop flooring
........ ....... ..........................................
65 USG 740705
Based an 3" mineral waol
batt, 44 oz prpet and
40 oz pad atop floaing
• 5/8"�acBrand Fr�cooE C Core 59 54 RAL-IN04-006/iL04-033 1 hour SA305 B-8
Gypsum Panels Cushton virryl flaor
— 2x10" wood joist 16" o.c. ........ ....... .................._......................
— RG1 channel or equivaleirt 16" o.c. 56 55 RAL-IN04-007/TLA4-034
— InsulaCwn held up under subfloor by Engineered wood-lamina[e floa
lightning cliPs ........ ....... .........••••••••...._.......••••.........
—19/32" T&G wood subfloor 59 77 RAL-tN04-005lTL04-032
� 3!4" LEvtuoac &and Floor Underlaymetd Carpet with SRM-25
••• ..... ....... ................••••••-...................
59 52 RAL-IN04-009/It.04-067
Ceram� t�1e with aack-isolation
� membtane
........ ....... ...••••••_••••••-........................
58 50 RAL-IN04013/Tt04-100
. (luhiat virryl fioa
....... ....... ...............:..•••••.......:...........
58 51 RN.-IN04-012/TL04-099
Bgir�eered wood-larninate floor
58 73 RAL-IN04-010/i1.04-097......
Carpet w�Th SRB
� 25 USG Acoustica! Assem6lies
: . � .
` R 1!: , •
1 •��
`' ` L
.,
1�&'oo�I Framed
�
• Dimensional Lumber �
• 2 layers 5/8" S�moac Brand
F�cooE C Core Gypsum Panels
`- 8" x 8" ceramic tile 58
� � _ - - - - - -' _ - - � 1/2" Duma Brand Exterior Ceme.nt Board
13Yi �T? �.��� • 1" S�raoac Brand Gypsum Liner Panels
3�+.:t t�g�t�r,�ai� +��� �ftt�� �.
e �E. ��r ac r' : _ .1iJ��iJ� -1/2" piywood
- ac10 wood joist i6" o.c. .....
- - 3" minerai woo! batt
.:..,_:.:<..._ :..:...:.. ::..s:.:.,:..s•.. ::-.s�.
, = RC-t channel or equivaieM
� 59
• 2 layers 5/8" St�rnax &and
-' � Jfnw.e.�nrere:�m�n�:rcrcierertnmssmrn.x:inxmrrn FqECODE Ci CiOfC �SIIliI P3IIP.�S
'•`~ �` "-�: c- -„;'~'u;>: R�%sai - 2X70 WOOd j01SIS 16" O.C.
- 3" mineral woo� batt
�� ��SI - He-1 cnanne� or eem»nra�ent
13 �6�i�IT���i 1 C� �;:T� -
�` - - -
5Z • RAL-IN-89-5
. ....... . ..................••••.................
r�-n-ss-ias
Based on vinyl tile over aiente�
shand board n plaCe of ceramiC'
tile and cement board
.. ....... ..........................................
51 RAL-IN-89-T
.. ....... . .......•••..........._............_.._.
RAL-TL-89�146
Based on carpeUpad over
aiented strarxl board in place oF
ceramic U7e and cement board
.. ....... ..........................................
RAL-71-8�141
. ....... ..................:........................
RAL-IN-89-8
wLL-n-so-4o
. ....... . ...................•---.........__......
69 FiAL-IN-9D3
. ....... . .............••-..........•••..........
rta: n-so-4o
Based on vinyl tile tn
place of carpet/pad
. .... . ...........................................
37 RAL-IN-90-6
60
62
59
�]
• Ertgineered Joist - -
Clg. vut. 3 • 1/2" or 5/8" Sr�moac &and Fu�co� C 47 40 HAL-A-81-87
Core Gypsum Panets, ceiling RAI.-1N-81-16
- 3/4" T&G plYwood ........ ....... .......•••..............................
� - I-shaped wood joist 24" o.c. 54 RAL-IN-81-17
- metal iurring channel 24" o.c. Based on carpet and pad
12�/6" -1-1/4" 8 pcf T�rnaF� insulation atop flopring
(UL Des 531) ....... ....... .
.................._•_••••............,
-joirtlsfinished 43 RAL-IN-81-19
.. ,� � optiaiai 3✓4" Leveirodc Brarid Floor Based on cushia�ed virryl atop
Underlayment flooring
`�� • optional SRM-25 or SRB sound mat
' • 2layers 1/2" S�taoac &and 64 56 RAL-OTai-05/06
� � Fr� C Cae Gypsum Par�els 1" L�v�utoac, vinyl, SRM-25,
' ��, � „� � i • optiorcal SRM-25 a SRB sound mat 3-1l2" in,sulation
�����t�����` �����-r���i; -1sr�rwooa�,�
....... ....... ........................................
12'/s 3�::t�i;�i�5:1 4�L-i�S,�S: - 9-1/2"deep'I'shaped wood joist 24" o.c. 64 62 RAL-OT03-07/08
12�/6" -14" parallet dwrd wood truss 32" o.c. f' ttvEuroac, engineered
- RC-1 w equivalent wood-lamfmate floor, SRM-25,
�. • 3/4" ltveuioac Brand Floor Underlaymerrt 3-1/2" insulation
�� _ _ _-_ _ ............
, � ._., . ....... ....... ...................••-......
• 66 54 RAL-OT03-09/10
1' LEve.rrocx, rzramic tile,
SRM-25, 3-1/2" fnsulation
. ........ ....... ........._.............................
65 54 RAL-0T03-01l02
, 3J4" LEvataa4 vir�yl. SRB.
3-1l2" insulation
........ ....... .........................................
66 . 51 RAL-0lU3-03/04
3/4' lFvaAocx, ceramic tite,
5ii6. 3-1/2' insulat'ron
Floor/Ce' 'n s
g
Eire Pertormance
2 hour UL Des L541
2 hau � UL Des L541
Reference
SA934 B-9
B-10
1 hour UL Des L530 SA305 B-11 �
based at 9-1/2"
deepTJl� joists
UL Des L531
9" deep
W51� joist
1 hour I UL Des 1570 I SA30.5 I B-12
26 US6 AcousYicai AssembGes
. , �
a h` �
ti
. .
Desi �n Details
g
----------------------------------------- --- ----- ---- - - - --- - _
l�ood rramed
Sound isotattng partition — chase wall
�
. i/z SFiEEfRoqc&
FIHECODE C0�
gypsurtl panels-
'/a` SIIEEiAOCK
Brand gypsum
�—S�raoac Brand
acoustical sealant-
Ceiling/floor attachment — Sx�moac Brand
.i--. ..1 • j-�.
.S1fffflOqC9r211d *.
jointiape � M�1 �
�, ___
samd in�lation -
. . . .;. --
Flow attachment : .1' _ -
.�. ___
sr�oac erand - — -
9YP�m P� • - � -
:�� -,—'
, �� __-
. ��.
„�+;,
St�oac Brand
acoustipl sealant
panel Ceiling/floor attachment/Sx�moac Brand gypsum panel, FlxEcooe C Core panel
.--� � •
% • ' 'l.'r•, •%'.". •� . j�. -� • y-•.•,-_• -
.St�iRopc Brand Sr�nwpc Brand Sr�erRoac Brand
acoustiplsealarrt joiMtape � � : �. '� acousticalsealant
� .' .
�:: �� --- :�� �:�
RG1 resilierd -�' . . RG1 resilie.nt
channel w sound insulation -�_ It� channel or
� equivaleM ..F �• "_ - _ _ •�• .� e�lu'rvaleM
� :� --- �: •;'
Floor attachmerd ' - �'
�4,�,�, l: :� --- �l� -l�:
Sia.s�� (� .(�. ___ vz
'�2' �syusc,ro ` l� -----
D��S ' —_ - � _I
�.
RG1 resilient _ � - • • . RC-1 resilient
channel or )� ;�- - � ( channel or
•' f•.
equivalem(may ' _.--- - equivalem(may
be imrerted to �� •� -� �� be imrerted to
� ease attachment .� �. �• .� ease attachment
� �) of base}.
,�..: • �
Si�rFloqc Brand
acoustical sealaM
27 US6 Acoustical AssemMies
: ti ` '
, .
.�_ ' ��
= �� ' � � . Desi �Details
. �-'-
�'ood rramed
. Single-layer panels with RC-1 Channel Double-layer panels with RC-1 Channel
RC-1 resilierrt "
— d�annei or equivalent . . —
� t
' s.�-:—..� • % :,'. •; 'i- '
. :�✓•.'r1: f ' •.�-.!. f.i
'-z:: ��:: � • ..�'—'...i.;T�'_" ��
' ' StIEEfROCK • �'----�
. ,. . 9c4 wood stud � &and • .
Sr��ocicBrand :.� .•` acousticai 2x4woodstud �� )�
9YP�mp� � -�' �. �� RC-1 res�'lient '� \-
- RC-1 reslient _ - �d cl�annei a equivalent
channel or equivaleM ' --_ - �I�� . � �� B�. � i
_ � - gypsum panels , � �.
��. -=_ :�: : � :l
�
,�2• :
Ceiling and floor assembiies
'�z" Plywoal subfloor
n/az oakfinishfloor
-2 x 10 joist
rosin papa 16" o.c.
RG7 resilient channel or
equiva►em screw applied
RGi resitferr[
channel w eai
• �&arld
[ aeousticai
- —' •! � � seafant
_ - � �, i�� sound
- -- _ insuiatlon
_ _ ��
- --_ _ • I•' L• -
`�/i SHEE�oCK Brand � �Vz" 9iEt�ocic Brand
fw[cooe C core gypsum panels FiREcooE C core gypsum panels
Ceramic tile Yinyi tile or carpeUpad
UL Design L541
8".x 8`.ceramiC tile '/i DuRocic Brand DunoCK Brand virryl tile or 1 Vz' pumped, self-leveling g}�psum
exteria cement board ceramic hle adhesNe carpet.wAh Pad cement ffoa undedaYment ltyPe �
� �� ��� � ��� �� ��� •� � �: � � �� � �
��
�sealant gypsum uterf panel '�2� PN�°d aco�usU'p Sezlant T/2" P��
finsuiation pinned �ip � ac10 wood
�"� la� joist516" o.c. . joi5ts 16' o.c.
- - - - - - � - • �.-r
2 layers of 5/e S�t�aoac RC-1 resi6eM dtannei 3' so�mdattenuation 2 layers of 5/a' S��trtocu RC-1 resilient channel 3' sound attenuaGon
&and Fu�co�E C cae or equivalent 16' o.c. blankets t" above Brand Fa�CooE C core w equivaler� 16" o.c. blankets 1" above
gypsum panels ,. bottom of joists gypsum panels bottom of joists
28 USG Acoustica! Assemtriies
•. ; �
;� �
., •� .
.
..
Flanl�in � Path Details �
g
� . TY-pical Flanl�ng Pafihs
Doorway Piacement — Avoid
HVAC Design — Avoid �
PlacemeM — Better
�T _ 1-".T
NVAC Design—Avoid
32 oS& dcoustrcal Assemb�es
HYAC Design - Recommended
NVAC Design — Better .
. li
y y� �. � .
n ��
♦ S�
�
.` i
' . i
_ Interrapting �lanl�ng Paths
���y —
� : -i
�(
:(:
• slud
;�.� shortarcuit
��
. � .i
j:
Aesilie� Channei Wall Framing — Recommended
�'.
sNd :(�i
� carect
�� .
� i .
Electrical Boxes —Avoid
Electrical Boxes — Better
Cabfnet Cutout
33 USG Acousticai Assemblies
. . `
�-.� , ..� .,
.�. ,
,. . �
Flanl�.in Pat� Details
�
Tntei�-upting Flanl�ng Paths-Multifamily Con; truction
Jotsts
AdjaceM Bathrooms
f3 ��1
.: �
i�� - =�i� �
� ���
� �� • �
� 3 r „�.
�s :,
; �f �• ���
� �1
� � �@
,► � ► �;
AttiC
IGtchens
Note
See pg.29 ta hi9b-Pertamance Pertilion•
34 USG AcousGcai Assembiies
, , , \ti :. , ' .
; '�.M^l .4," J .
R .
♦
� .
� �\
. . ....` ...............................................p.. .�................ _.. �...................t ............................:...........g .
. .. Inierru ti Flankin� Paths—��coustical Ceilin s
Acoustical Panel — Exposed Grid
. hanger wire
expased spline-�
cbmpressble
Acoustipl Panel — Concealed Grid �
�rconcealed spline �metal spfine
compressble
sheet metal .
1 Z/z col d rolied channel
furring hollow
channel �ancha
adhesNe—'
gypsum pane
compressble
,
35 US& Acoustical Assem6lies
.�`.
w� �.
n <;.s, �4 '
^.,
o `.
� •
�� . .
Add sound insulation .
Adding a layer of fibrous sound-absorbing insulation material such as mineral wool i�to the partition cavity wili dissipate
sound by creating fiction, which transforms a portion of sound wave energy into heat. However, sound atter�uation
� blankets cannot completety cour�er the conductivity of the wood or steel studs in the framing assembly, which provide
� a path of least resistance for sound energy.
Decouple wail panels .
�. � Attaching the wall surface diaphragm (e.g. drywall panels) direcUy to framing members provides an uninterrupted path
for sound travel. This route. can be ir�errupted by mounting the surface diaphragm to resilient channels attached to
the wall studs and placing sound insulation inside the partition cavity.
� Seal flanking paths �
Closing off gaps or penetrations in the wail assembly is critical to controlling noise. One of the most eifective methods is .
to appijr acoustical sealant at the intersection of the gypsum panel, floor system (wood or concrete), and the leg of the
steel runner or wood sole plate; sealant should be applied at this location on both sides of the partition. A properly
. sealed wall assembly with one 5/8" gypsum panel on each side and a 1-1/2" thick sound attenuation blanket instal►ed
� in the air cavity achieves an STC of 53. Without acoustical sealant, this assembly would produce an STC of only 29—a
dramatic 45 percer� reduction.
Increase isolation with steel studs
A single-layer partition with B/8" gypsum panels and 3-5/8" siud achieves 40 STC with 25-ga. steel and 38 STC wfth
20-ga. steei. STC falls to 35 with a traditional 2' x 4' stud due to the greater stiffness of wood.
FloorlCeiling Assemblies
isolate sound � .
Whether constructed with joists, trusses or concrete siabs, floor systems can develop gaps or cracks, providing a flanking
path for sound to travei beiween levels of a building. Even properly sealed assemblies can transmft noise irom footsteps,
failing objects, closing doors and other impacts. These acousticai probiems can be sign'rficantly reduced with a flooring
system that includes a layer of sound absorbing material topped with a poured cementitious underlayment The poured
underlaymer� finds and seals cracks and other sound channels, then hardens to form a solid barrier isolated from
the sWcture below by the sound mat or board. This system can provfde STC ratings as high as 66 and increase DC
by as much as 13 pofr�s, a significar� improvement
37 USG Acoustica! Assemblies
� q ,. ��• ' . . . ' � . : .
, • � '�� L . . � � , � . . �
r .. . . .
�� i�� � � . , . . � . . - .
�� - '� � STC Guidelines
� ..................................:.............................................:...................................................................
. . ��
• . • Building Type � � Room . Adjacent Room Minimum' Medium High
Room
Reside�rtial, . Bedroom " Bedroom 45 50 • 55
.................................. .................................. .•••............................... .........
_ including motets, hospitais, • . Uving room 50 55 60
.................................. ..................•••••........... .....--•......_.................... .........
and dormitories Kitchen 50 55 60
Business
Schoot
.................................. .................................. .................................. .........
Bathroom 50. 55 60
..............••-•-••••......_.._ ...............••••••••._......... ...................•••............. .........
Corridor 45 50 55
.................................. ..........•••••...._.............. .................................. .........
Lobby 50 55 60
....................•••••........_ ...._.....__._.................... ..........................._....... ...•--...
Mech. room 55 60 60+
Liv(ng Room Uving room 40 45 55
............................••••-- ••••-••.........._..............•- -.........._...._........._...... .........
� Kitchen 45 50 60
.................................. .........•-•......_._._........... .................................. .........
Bathroom 45 � 50 60
..............:................... .................................. .................................. .........
• Corrida 45 45 55
.................................. .................................. .........................:......... .........
Lobby 50 55 60
.................................. .................................. .................................. .........
Mech.room 50 60 60+
KHchen or Bathroom Kitchen 40 45 50
.................................. .................................. .................................. .........
Bathroom 40 45 .............50----•
.................................. .................................. ......................
Corridor 40 40 50
.................................. .................................. ................................... .........
Lobby 45 50 60
.................................. ............................••.... ......._............_........_..... .........
Mech. room 45 55 60+
O(iice Office 45 50 55
.................................. .................................. ................................... .........
General area 40 45 50
.................................. ............•••................... ......................:............ .........
Corridor 40 45 • 50
•••••• ............................ .................................. ................._.............. .........
Washroom .. 45 ..........50 ..............................55.....
. .............................. .............•,.••-•
Kitchen 45 50 55
.................................. ................••-••-............ .................................. .........
Conference raom 45 b0 55
Co�erem� Room General area 40 45 50
.........••••••••-•• .............. .................................. .................................. .........
� Corrida 40 40 45
'. ............................•••... .•-•-----._._..................... .................................. .........
Washroom 40 45 ..............................50
.................................. .................................. ..... ..._
Kitchen 45 50 55
........ .......................... ............................ ...... ........................... ........ ...... ...
Conference room 40 45 50
GeneralArea Corzidor 40 40 45
..••• ............................. .•••.............................. _..................._......-••.... .........
Waslrcoom 40 45 5Q
. .................................. .................................. .................................. .._.....
IC�tchen 45 50 55
Classroom Classrotim 45 50 � 55
...........................••••••. ............._.................... ................•••••••.•••••..... .........
Labaatory 45 50 55
..............•••...•••••••,•••... .............._................... ._....._.......••_-•-.....•_.... .••_-...
Caridor ' 40 40 45
.................................. .•••••............................ .........•••••••••..._............. .......•-
Kitchen 50 55 55
._ ............................... .................................. ................................... .........
_ Shop 55 60 60
_ ...............................................................................................................
Recreation area 45 50 55
.................................. .................................. ....••....•••......._............. .........
� Music room 60 60 60
.................................. .................................. ................................... .........
Mech. room 50 55 60
...................._............ ............................._.... ................................... .........
Wastuoom 45 50 55
Music Room laboratory . 45 50 55.
..••••••• ......................... ..............•••................. ........••••....................... ....._...
Caridor 45 50 55
.................................. .................................. ................................... .........
5hop 50 55 ' 60
.................................. .................................. ................................... .....••••
Recreation area 50 55 60
...........................••-.... .............._._............_.... .•-••............................. .........
Music room 55 60 60
............................•••... .••••-............................ ....•••••••........•:•............ .........
Mech. room 50 55 60
�u� wnem nnnxa w��ung w�na recpme a munmum oi� �ano u�,� separmiwi m owemng unns. ine nius mtemaoonai nuumng wce requRes a mirumum separanon
� of 50 STC arW 50 NC fa aparlments, cundominuirns and townhouses. l.ap! jmisd�ctions using the 20031nternational R�tlential Code may require a minimun
separation of 45 STC fa tv�unhwses.
� USG Acoustical Assemb{ies