HomeMy WebLinkAboutX2021-1041 - Alternative Material & Methods (2)�aEwPoRr
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CITY OF NEWPORT BEACH
COMMUNITY DEVELOPMENT DEPARTMENT
BUILDING DIVISION
100 Civic Center Drive I P.O. Box 1768 I Newport Beach, CA 92658-8915
www.newoortbeachca.gov I(949) 644-3200
-1 filwa �A M RMIM
STAFF USE ONLY
REQUEST. FOR MODIFICATION TO PROVISIONS
i
Plan Check # 69s7-201�# of Stories Z
OF TITLE 9 (FIRE CODE) OR TITLE 15 (BUILDING CODE)
12 4A
OF THE NEWPORT BEACH MUNICIPAL CODE
Occupancy Cla3efflMbr1
(See Reverse for Basis for Approval) (Fee $291)
Use of Building 'I _ # of Units
Project Status Abeg C ere
❑x REQUEST FOR ALTERNATE MATERIAL
Construction Ty Is ✓R,Tn!
i/5
OR METHOD OF CONSTRUCTION
Verified by
f
(See Reverse for Basis for Approval) (Fee $291)
No. of Items
Fee due T f�
S-7 Y
For above requests, complete Sections 1, 2 & 3
DISTRIBUTION ` yc c —".;-' I
below by printing in ink or typing.
❑ Owner ❑ Plan Check
❑ Petitioner ❑ Inspector
❑ Fire ❑ Other
TJ JOB ADDRESS:
PETITIONER:
SITE ADDRESS, 2707 Lighthouse Lane.
Petitioner Brian Wood c/o CJ Light Assoc.
Owner Kyle Nelson
feeddonerto be amhtect or engineer)
1401 Quail St., #120
Address 2707 Lighthouse Lane
Address
NB, C
CDM, CA 92629
Zip.
Zip
Daytime Phone (714) 803-9533
Daytime Phone ( )
Email: Brian@Cllight.net
2
REQUEST: Submit plans if necessary to illustrate request. Additional sheets or data me be a Cached.
tpprovi e alternative means for protection o building, occupants and first responders between emergency escape and
rescue openings sewin master bedroom and bedroom 2 on the second floor and the edges of the roof deck and the flat roof
respectively. The building code requires that these openings open directltoe yard that is unobstructed from the ground to
—sky
the,
3 JJUSTIFICATIONIFINDINGS OF EQUIVALENCY:
CODE SECTIONS:
2019 CRC R310
Because the emergency escape and rescue openings described in the request open directly onto a roof structure instead of the
round fire resistance rated construction is proposed for the structures to provideequivalent protection, see attachment.
Position Project Manager
Petitioner'
Signatur. CA Professional Lic. # 22334 Date: 09-30 21
-FOR STAFF USE ONLY.
DEPARTMENT ACTION: In accordance with: ❑ CBC 104.11/CFC 104.9 ❑ CBC 104.10/CFC 104.8
(Alternate materials & methods) (CBC Modification)
El Concurrence Concurrence from Fire Code Official is required. ❑ Approved ❑ Disapproved ❑ Written Comments Attached
By: .Date
❑ Request (DOES) (DOES NOT) lessen any fire protection requirements..
❑ Request (DOES) (DOES NOT) lessen the structural integrity
The Request is: ❑ Denied (See reveme for appeal Information)
IKGranted
❑ Granted (Ratification required)
Conditions of Approval:
131.11ILDING WHO."
Signature Position Date
Print Name
APPEAL OF DIVISION ACTION TO THE BUILDING BOARD OF APPEALS (See Reverse)
(Signature, statement of owner or applicant, statement of reasons for appeal and filing fees are required.)
CASHIER RECEIPT NUMBER: R coo i i -7,q ig Lf Fonsvnodn 07f01/21
REAC"A
IMES Evaluation Report
ESR-1757
Reissued March 2020
This report is subject to renewal March 2022.
www.1cc-es.ora i (800) 423-6687 i (562) 699-0643 A Subsidiary of the International Code Council®
DIVISION: 07 0000—THERMAL AND MOISTURE
PROTECTION
Section: 07 18 13—Pedestrian Traffic. Coatings
REPORT HOLDER:
CROSSFIELD PRODUCTS CORP..
EVALUATION SUBJECT:
DEX-O-TEX WEATHERWEAR ROOF DECK COVERING
1.0 EVALUATION SCOPE
Compliance with the following codes:
■ 2015, 2012, 2009 and 2006 International Building
Codes (IBC)
0.2015, 2012, 2009 and 2006 International Residential
Codee(IRC)
■ 1997 Uniform Building Codelnu (UBC)
■ 2013 Abu Dhabi International Building Code (ADIBC)t
)The ADIBC is based on the 2009 IBC. 2009 IBC code sections referenced
In this repod are the same sections in the ADIBC.
Properties evaluated:
■ Durability
■ Wind resistance
■ Fire classification
■ Fire resistance
2.0 USES
.Dex-O-Tex Weatherwear Roof Deck Covering is a walking
deck and Class A roof system for use over plywood,
steel or concrete decks. The system is also used as a
componentof a one -hour fire -resistance -rated roof
assembly.
3.0 DESCRIPTION
Dex-O-Tex Weatherwear roof deck covering is a
multilayered, trowel -applied, waterproof roof coating that is
subjected only to. normal foot traffic. The system consists
of a series of troweled coatings that form, successively, an
elastic latex membrane, an integral composition flashing,
and a flexible rubber cement traffic surface, made of
Resistite paste, Resistite powder, Neobond II membrane
liquid, N-38 paste, and Standard Neotex powder. A base
sheet separates the Dex-O-Tex application from the
surface it covers, permitting- it to "float" over normal
building cracks and movement. Dex-O-Tex Weatherwear
components are all combinations of liquid rubber latex
polymers incorporating dehydrating powders, vulcanizers,
and special aggregates. The total thickness of the material
is 'As inch to 1f4 inch (4.8 mm to 6.4 mm).
4.0.INSTALLATION
4.1 General:
Installation of the Dex-O-Tex Weatherwear must be in
accordance with the manufacturer's published installation
instructions, the applicable code and this report. The
manufacturer's installation instructions must be available
on the jobsite during application. Liquid components have
a shelf life of one year and must be stored at temperatures
above 32-F (0-C). The system must be installed only when
the ambient temperature is above 320F (OaC). Materials
must not be applied if precipitation is occurring or
expected.
4.2 Preparation of Substrates:
Structurally sound, clean, dry substrates listed above must
be prepared, as described below, prior to the application of
the finish material.
4.2.1 Structural Concrete: The surfaces must be clean
and free of standing water. All holes, joints and cracks
must be pointed flush with Portland cement mortar, and all
highspots cut or ground off to provide a smooth, even
surface. Before the material is applied, the substrate must.
be carefully swept, or blown clean by high-pressure air to
remove all dust or foreign material. Special care must be
taken in the preparation and cleaning of all comers and
edges. Foreign materials such as paint, grease and oil
must be removed by either grinding or sandblasting, with
new concrete surfaces acid -etched. Large areas to be
covered are required to have control joints.. at maximum
intervals not to exceed 20 feet (6096 mm) on center, with.
the control joint system worked out to meet all known deck
stress -concentration points. The control joints must be cut
in the same manner as for standard concrete construction,
and then caulked.
4.2.2. Plywood Base Material: Plywood. substrates must
be minimum 5/8-inch-thick (15.9 mm) exterior -grade
Plywood, having amaximum span of 16 inches (406 mm),
and with tongue -and -groove edges and ends blocked or all
edges blocked, and face grain perpendicular to supports.
The plywood must be supported along all edges, and
adequatelyfastened to all bearings by means of
countersunk wood screws, or screw nails equivalent to 8d
ring shank nails spaced at 6 inches (152 mm). on center, or
as otherwise required by the applicable code. The nails
must have a minimum penetration into the beams or joists
supporting the plywood as required by the applicable code.
The plywood surface must be clean, dry and free of all
lf'(.'-FS Rvahmtion Repnru nre not to he malcued as representing aesihelics Oran), other artr/boles not specicn//)• addressed our are they to Ae cominred
asmt andarsement oJthe subject oJlhe report or a recounneadefionforfle use. There la na varrdtir b /CCEeahmrun Semite, f.IG, esp. nr Anplied, as M.' --
loanyfiudiugnrolhermalmrin rbls mport or osm anyprridircrcm•ercd by the report
Copyright C 2020 ]CC Evaluation Service, LLC. All rights reserved Page f of 3.
ESR-1757 I Most Widely Accepted and Trusted Page 3 of 3
5.2 Applications must beby.applicators authorized by 6.0 EVIDENCE SUBMITTED
Crossfield Products
6.3 Fire classification must be as described in Sections
4.3and 4.4..
5.4 Under the 2016 IBC, 2015 IRC and 2012 IBC,
installation must be limited to areas subject to an
ultimate design wind speed (V„ u) of 130 mph
(209 km/h) on structures with a maximum height of
40 feet (12,192 mm) in Exposure B areas.
Under the 2012IRC, 2009IBC, 2009IRC, 2006IBC
and 2006 IRC, installation must be limited to areas
subject to a maximum 3-second gust basic wind
speed (V3s) of 100 mph(161 kmth) on structures with
a maximum height of 40 feet (12,192 mm) in
Exposure B areas.
Under the UBC, installation must be limited to areas
subject to a maximum fastest -mile basic wind speed
of 80 mph (129 km/h) on structures with a maximum
height of 40 feet (12,192 mm) in Exposure B areas.
6.6 Materials are manufactured by Crossfield Products
Corporation, in Rancho Dominguez, California, under
a quality control program. with inspections by
ICC-ES.
6.1 Data in accordancewith the ICC-ES Acceptance
Criteria for Walking Decks (AC39), dated October
2013 (editorially revised December 2016).;
6.2 Reports of reduced -scale fire -resistive -rated assembly
tests.
7.0.IDENTIFICATION
7.1 All containers, except for those of the fiberglass base
sheet and loose woven jute fabric, are identified with
the report holders name and the manufacturing
address, the product name, the date of manufacture,
theshelf life and the lot number or production
number. In addition to the above, the materials listed
in this report are identified with the ICC-ES report
number(ESR-1757).
7.2 The report holder's contact information is the
following:.
CROSSFIELD PRODUCTS CORP.
3000 EAST HARCOURT STREET
RANCHO DOMINGUEZ, CALIFORNIA 90221
(310)886-9100
www.dexotex.com
lamd&cocmail.net
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SECTION 'A'
SECTIONS'
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4.5 One -hour Fire -resistance-rated Construction:
The Dex-O-Tex Weatherwear Roof Deck coating installed
RPLING PER
c,x,u L—L
as described in this report over 5/8-inch-thick (15.9 mm)
�rcs°ec+nx�cx=exPax
exterior grade plywood with 2-inch-by-8-inch (51 mm by
203 mm)joists spaced 16 inches (406 mm) on center, with
all plywood joints blocked, may be substituted for the
a.,Tb,.xerex*°
double wood floor described In footnote 13 of Table 7-C of
"qDL
the UBC and item 13 and footnote In of table 721.1(3) of
the 2015 and 20121BC [Item 13 and footnote m of Table
720.1(3) of the 2009 and 2006 IBC]. When installation is
over nominally 2-by-8 joists, the design bending stress
assigned to the joists must be limited to 78 percent of the
code -prescribed design values.
nETu unomx�
Refer to complete ICC ESR- 1757 for installation
requirements.
13
1 9
1 5
1
1 HR RATED DECK ASSEMBLY 17
PER RTE1REFERTD
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15
11
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3
C n��ro
CBC Table 721.1(3)
DELI D" °°"LIDItem
13-1.3
Perlite or vermiculite gypsum plaster on metal lath secured
to joists with 11/2" by No. 11 gage by 7/16" head barbed
shank roofing nails spaced 5" on center, 5/8" minimum
assembly thickness.
1 HOUR RATED ROOF WALL =-,x 20
16
12
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