copyright 2016 aia masterspec full length 03/16 (pm updated 04/21) product masterspec licensed by deltek, inc. to huntsman building solution

Copyright 2016 AIA MasterSpec Full Length 03/16 (PM updated 04/21)
PRODUCT MASTERSPEC LICENSED BY DELTEK, INC. TO HUNTSMAN BUILDING
SOLUTIONS
Copyright 2016 by The American Institute of Architects (AIA)
Exclusively published and distributed by Deltek, Inc. for the AIA
This Product MasterSpec Section is licensed by Deltek, Inc. to
Huntsman Building Solutions ("Licensee").
This Product MasterSpec Section modifies the original MasterSpec text
and does not include the full content of the original MasterSpec
Section.
Revisions made to the original MasterSpec text are made solely by the
Licensee and are not endorsed by, or representative of the opinions
of, Deltek or The American Institute of Architects (AIA). Neither AIA
nor Deltek are liable in any way for such revisions or for the use of
this Product MasterSpec Section by any end user. A qualified design
professional should review and edit the document to suit project
requirements.
For more information, contact Huntsman Building Solutions, 10003
Woodloch Forest Dr., The Woodlands, TX 77380; Phone: (281) 219-4100;
Website: www.huntsmanbuildingsolutions.com; Email:
[email protected].
For information about MasterSpec, contact Deltek at (800) 424-5080 or
visit masterspec.com.
SECTION 075700 - COATED FOAMED ROOFING
TIPS:
To view non-printing Editor's Notes that provide guidance for editing,
click on MasterWorks/Single-File Formatting/Toggle/Editor's Notes.
To read detailed research, technical information about products and
materials, and coordination checklists, click on
MasterWorks/Supporting Information.
Access Product MasterSpec Sections:
at ProductMasterSpec.com.>
Revise this Section by deleting and inserting text to meet
Project-specific requirements.
1.
GENERAL
1.
SUMMARY
A.
Section Includes:
1.
Spray-applied, coated, polyurethane foam roofing.
2.
Walkways.
B.
Related Requirements:
Retain subparagraphs below to cross-reference requirements Contractor
might expect to find in this Section but are specified in other
Sections.
1.
[Section 061000 "Rough Carpentry"] [Section 061053
"Miscellaneous Rough Carpentry"] for wood blocking,
curbs, cants, and nailers.
2.
Section 072119 "Foamed-In-Place Insulation" for
spray-applied polyurethane foam specified as general
building insulation within walls and rafter spaces.
3.
Section 076200 "Sheet Metal Flashing and Trim" for foam
stops, roof penetration flashings, and counterflashings.
4.
Section 077100 "Roof Specialties" for counterflashings,
gravel stops, facias, and expansion joints.
5.
Section 079200 "Joint Sealants" for joint sealants,
fillers, and preparation.
1.
DEFINITIONS
Retain terms that remain after this Section has been edited for a
project. The terms "applicator" and "installer," as used in this
Section, are defined below; these terms are reversed in their usage by
the SPFA's professional certification titles.
A.
Applicator: A qualified person employed to apply
spray-applied, coated, polyurethane foam roofing.
B.
Installer: A qualified firm contracted to install
spray-applied, coated, polyurethane foam roofing.
1.
PREINSTALLATION MEETINGS
Retain "Preinstallation Conference" Paragraph below if Work of this
Section is extensive or complex enough to justify a conference.
A.
Preinstallation Conference: Conduct conference at [Project
site] .
If needed, insert list of conference participants not mentioned in
Section 013100 "Project Management and Coordination."
Retain first subparagraph below if additional agenda items specific to
Project are required but not mentioned in Section 013100 "Project
Management and Coordination."
1.
Review methods and procedures related to coated foamed
roofing, including, but not limited to, the following:
a.
Load limitations on in-place roofing.
b.
Construction schedule. Verify availability of
materials, Installer's personnel, equipment, and
facilities needed to make progress and avoid delays.
c.
Surface preparation specified in other Sections.
d.
Minimum curing period.
e.
Forecasted weather conditions.
f.
Special details and sheet flashings.
g.
Repairs.
h.
.
1.
ACTION SUBMITTALS
A.
Product Data: For each type of product.
1.
Include manufacturer's written instructions for
evaluating, preparing, and treating substrate;
technical data; and tested physical and performance
properties.
Retain "Samples for Initial Selection" and "Samples for Verification"
paragraphs below for two-stage Samples.
B.
Samples for Initial Selection: For each type of exposed
product, finish, and color.
1.
Include Samples of auxiliary materials and accessories
involving color and finish selection.
C.
Samples for Verification: For coated foamed roofing,
prepared on Samples of size indicated below:
1.
Samples, 24 by 24 inches (600 by 600 mm), on rigid
backing, showing polyurethane foam of thickness
required and stepped coatings in colors required to
illustrate buildup of coated foamed roofing.
2.
Include Samples of auxiliary materials and accessories
to verify color and finish selected.
1.
INFORMATIONAL SUBMITTALS
Coordinate "Qualification Data" Paragraph below with qualification
requirements in Section 014000 "Quality Requirements" and as may be
supplemented in "Quality Assurance" Article.
A.
Qualification Data: For SPFA-qualified [Installer] [and] [applicators].
Retain "Product Certificates" Paragraph below to require submittal of
product certificates from manufacturers. Certificates may indicate
certification that products have passed certain performance testing or
compliance with standards, such as EnergyStar, GreenGuard, or other
product certification programs.
B.
Product Certificates: For each type of coated foam
roofing.
C.
Evaluation Reports: For coated foamed roofing, from
ICC-ES.
Retain "Field quality-control reports" Paragraph below if Contractor
is responsible for field quality-control testing and inspecting.
D.
Field quality-control reports.
E.
Sample Warranty: For special warranty.
1.
CLOSEOUT SUBMITTALS
A.
Maintenance Data: For coated foamed roofing to include
in maintenance manuals.
2.
QUALITY ASSURANCE
Retain "Installer Qualifications" Paragraph below if coating
manufacturer approves, authorizes, or licenses coated-foamed-roofing
Installer, which is common practice and is generally required for
warranties.
A.
Installer Qualifications: A qualified
coated-foamed-roofing installer who is approved,
authorized, or licensed by coating manufacturer for
installation of coating manufacturer's product over
polyurethane foam.
Accreditation program in subparagraph below is a voluntary program
administered by SPFA. Companies and individuals may receive
accreditation. Participant lists are available from SPFA.
1.
Engage an installer who participates in and who has
fulfilled requirements of the SPFA program for company
accreditation as "SPFA PCP Accredited Company Roofing,"
with individual applicator certification for personnel
assigned to work on Project.
A.
Comply with recommendations in SPFA AY-104.
B.
Mockups: Build mockups to verify selections made under
Sample submittals, to demonstrate aesthetic effects, and
to set quality standards for fabrication and installation.
Indicate portion of roof or temporary deck construction represented by
mockup on Drawings or draw mockup as separate element.
1.
Build mockup of typical roof area as indicated on
Drawings.
a.
Size: [10 by 10 ft. (3 by 3 m)] .
2.
Approval of mockups does not constitute approval of
deviations from the Contract Documents contained in
mockups unless Architect specifically approves such
deviations in writing.
Retain subparagraph below if the intention is to make an exception to
the default requirement in Section 014000 "Quality Requirements" for
demolishing and removing mockups.
3.
Subject to compliance with requirements, approved
mockups may become part of the completed Work if
undisturbed at time of Substantial Completion
1.
DELIVERY, STORAGE, AND HANDLING
A.
Deliver materials to Project site with manufacturer's
name, product brand name and type, date of manufacture,
shelf life, and directions for storing and mixing with
other components.
B.
Store materials in their original undamaged containers
in a clean, dry, protected location and within the
temperature range required by manufacturer.
C.
Remove and replace material that cannot be applied
within its stated shelf life.
2.
FIELD CONDITIONS
A.
Weather Limitations: Proceed with installation only when
existing and forecasted weather conditions permit
roofing work to be performed in accordance with
manufacturer's written instructions and warranty
requirements.
Some manufacturers have developed formulations of polyurethane foam
that are more tolerant of cold conditions. Revise temperatures in
first two subparagraphs below if applicable, and coordinate revisions
with minimum installation temperature of coatings.
1.
Apply materials within the range of ambient and
substrate temperatures recommended in writing by
material manufacturers, but not below 50 deg F (10 deg
C).
2.
Apply materials within range of relative humidity
recommended in writing by manufacturer of each
component, but not when relative humidity exceeds 85
percent, or when temperatures are less than 5 deg F (3
deg C) above dew point.
3.
Do not apply materials to damp or wet surfaces.
4.
Do not apply primers, polyurethane foam, or coatings in
snow, rain, fog, or mist, or when such weather
conditions are imminent during the application and
curing period.
5.
Do not apply polyurethane foam when wind conditions
result in surface finish textures not complying with
requirements.
6.
Do not apply coatings when wind conditions prevent
uniform coating application.
1.
WARRANTY
When warranties are required, verify with Owner's counsel that
warranties stated in this article are not less than remedies available
to Owner under prevailing local laws.
Many coating manufacturers offer roofing-system warranties specified
in "Special Warranty" Paragraph below, jointly warranting the
polyurethane foam and coating. These warranties include materials and
workmanship. Verify warranty availability with manufacturers. Revise
paragraph if materials-only warranty, usually limited to original
purchase price of materials, is required.
A.
Special Warranty: Manufacturer agrees to repair or replace
coated foamed roofing that does not comply with
requirements or that does not remain watertight within
specified warranty period.
Verify available warranties and warranty periods for coated foamed
roofing. Warranty periods of five and 10 years predominate.
1.
Warranty Period: [Five] [10] [15] [20]
years from date of Substantial Completion.
1.
PRODUCTS
Manufacturers and products listed in this Section are neither
recommended nor endorsed by the AIA or Deltek. Before selecting
manufacturers and products, verify availability, suitability for
intended applications, and compliance with minimum performance
requirements. For definitions of terms and requirements for
Contractor's product selection, see Section 016000 "Product
Requirements."
Product options commonly available from manufacturers are included in
square brackets throughout the Section Text. Not every manufacturer
listed can provide every option offered; verify availability with
manufacturers. For definitions of terms and requirements for
Contractor's product selection, see Section 016000 "Product
Requirements."
1.
MANUFACTURERS
A.
Source Limitations for Coated Foamed Roofing System:
Obtain coating and polyurethane foam from single source
from single manufacturer.
2.
PERFORMANCE REQUIREMENTS
A.
General Performance: Coated foamed roofing to withstand
exposure to weather without failure due to defective
manufacture, installation, or other defects in
construction. Membrane roofing to remain watertight.
1.
Material Compatibility: Provide polyurethane foam,
coatings, substrate board, and auxiliary materials
that are compatible with one another and with
substrate under conditions of service and
application, as demonstrated by manufacturer based
on testing and field experience.
B.
Fire-Test-Response Characteristics: Provide coated
foamed roofing with fire-test-response characteristics
indicated, as determined by testing identical systems in
accordance with test methods below for deck type and
slopes indicated by a qualified testing and inspecting
agency that is acceptable to authorities having
jurisdiction.
1.
[Class A] [Class B] [Class C] roof covering in
accordance with ASTM E108.
Revise "Surface-Burning Characteristics" Subparagraph below to suit
Project. Compliance with flame-spread index is required by the IBC for
foam plastic insulation; the IBC places no limit on smoke-developed
index for roof applications.
2.
Surface-Burning Characteristics: Comply with ASTM E84;
testing by a qualified testing agency. Identify products
with appropriate markings of applicable testing agency.
a.
Flame-Spread Index: [75] or less.
Retain "Fire-Resistance Ratings" Subparagraph below only if products
specified are part of a fire-resistance-rated assembly. Indicate
rating, testing agency, and testing agency's design designation on
Drawings.
3.
Fire-Resistance Ratings: Comply with ASTM E119; testing
by a qualified testing agency. Identify products with
appropriate markings of applicable testing agency.
Retain "Wind-Uplift Resistance" Paragraph below if coated foamed
roofing is to be designed to withstand uplift pressure established by
ASCE/SEI 7. This may be required if using substrate board or other
material between the coated foamed roofing and substrate. Consult the
Project structural engineer for determination of wind-uplift
pressures. Indicate dimensions of perimeter and corners in
subparagraphs below for simple roof shapes, or on Drawings.
C.
Wind-Uplift Resistance: Design roofing system to resist
the following wind-uplift pressures when tested in
accordance with FM Approvals Standard 4474, UL 580, or UL
1897:
1.
Zone 1 (Roof Area Field): m)>.
2.
Zone 2 (Roof Area Perimeter): (kPa/sq. m)>.
a.
Location: From roof edge to
inside roof edge.
3.
Zone 3 (roof area corners): (kPa/sq. m)>.
a.
Location: in each direction
from building corner.
Retain "FM Approvals Listing" Paragraph below if Project is FM Global
insured or if FM Global requirements are used to set a minimum quality
standard. Coordinate requirements of FM Global classification with
other requirements in this Section. Replace FM Global-listing
requirements with UL's wind-uplift and fire-test-response requirements
if required for Project.
D.
FM Approvals Listing: Provide roofing system and component
materials that comply with requirements in [FM Approvals
Standard 4450 for steel roof decks and ]FM Approvals
Standard 4470 for roof covers as part of a foamed roofing
system and that are listed in FM Approval's "Approval
Guide" for Class 1 or noncombustible construction, as
applicable. Identify materials with FM Global markings.
Retain one option in "Fire/Windstorm Classification" Subparagraph
below based on windstorm classification of Project. Verify
availability of roofing systems that comply with retained
classification.
1.
Fire/Windstorm Classification: Class 1A-[60] [75] [90] [105]
[120] .
2.
Hail-Resistance Classification: [MH] [SH].
First "Solar Reflectance Index (SRI)" Paragraph below applies to LEED
2009. First option is minimum for roofs with slopes of 2:12 or less;
second option is for roofs with slopes steeper than 2:12.
E.
Solar Reflectance Index (SRI): Not less than [78] [29]
when calculated in accordance with ASTM E1980, based on
testing identical products by a qualified testing agency.
First "Solar Reflectance Index (SRI)" Paragraph below applies to LEED
v4. First of each pair of options is minimum for roofs with slopes of
2:12 or less; second of each pair of options is for roofs with slopes
steeper than 2:12.
F.
Solar Reflectance Index (SRI): Three-year-aged SRI not
less than [71] [32] or initial SRI not less than [84] [39]
when calculated in accordance with ASTM E1980, based on
testing identical products by a qualified testing agency.
First "Solar Reflectance Index (SRI)" Paragraph below applies to IgCC.
First option is minimum for roofs with slopes of 2:12 or less; second
option is for roofs with slopes steeper than 2:12.
G.
Solar Reflectance Index (SRI): Not less than [78] [29]
when calculated in accordance with ASTM E1980, based on
testing identical products by a qualified testing agency.
First "Solar Reflectance Index (SRI)" Paragraph below applies to
ASHRAE 189.1. First option is minimum for roofs with slopes of 2:12 or
less; second option is for roofs with slopes steeper than 2:12.
H.
Solar Reflectance Index (SRI): Three-year-aged SRI not
less than [71] [15] when calculated in accordance with
ASTM E1980, based on testing identical products by a
qualified testing agency.
"Solar Reflectance Index (SRI)" Paragraph below applies to Green
Globes. First option is minimum for roofs with slopes of 2:12 or less;
second option is for roofs with slopes steeper than 2:12.
I.
Solar Reflectance Index (SRI): Not less than [78] [29]
when calculated in accordance with ASTM E1980, based on
testing identical products by a qualified testing agency.
Retain first "Energy Performance" Paragraph below for roofs that must
comply with the EPA/DOE's ENERGY STAR requirements. The EPA/DOE's
"ENERGY STAR Roof Product List" is available in PDF at
http://downloads.energystar.gov/bi/qplist/roofs_prod_list.pdf.
J.
Energy Performance: Provide coated foam roofing that is
listed on the EPA/DOE's "ENERGY STAR Roof Product List"
for [low] [steep]-slope roof products.
Retain "Energy Performance" Paragraph below for roofs that must comply
with local "cool-roof" energy legislation; verify requirements with
authorities having jurisdiction. Example and options below are for
low-slope roofs on high-rise residential buildings, hotels, and motels
that must comply with prescriptive approach of CCR Title 24
(California Building Standards Code).
K.
Energy Performance: Provide coated foamed roofing
certified and labeled in accordance with one of the
following when tested in accordance with CRRC-1:
1.
Three-year, aged solar reflectance of not less than [0.55]
and emissivity of not less than [0.75]
.
2.
Three-year, aged Solar Reflectance Index (SRI) of not
less than [64] when calculated in
accordance with ASTM E1980.
1.
POLYURETHANE FOAM
Retain "Polyurethane Foam" Paragraph below. Compliance with ASTM
C1029, Type III or Type IV, is required by the IBC, but generally not
cited in manufacturers' product data. Type III and Type IV set minimum
compressive strengths of 40 and 60 psi (276 and 414 kPa),
respectively, as well as other performance characteristics.
Manufacturers generally offer only Type III, 40-psi (276-kPa)
products. Revise below for ASTM D7425/D7425M, discussed in the
Evaluations, if required; if this is acceptable to authorities having
jurisdiction; verify availability of products with manufacturers.
A.
Polyurethane Foam: Rigid, cellular polyurethane; complying
with ASTM C1029, [Type III] [or] [Type IV]; spray applied,
with fire retardants as required, and acceptable to
coating manufacturer.
Retain "Basis-of-Design Product" Subparagraph and list of
manufacturers below to require a specific product or a comparable
product from manufacturers listed.
1.
Basis-of-Design Product: Subject to compliance with
requirements, provide Huntsman Building Solutions;
Foam-LOC™ [LPA 2500] [LPA 2800] [LPA 2800-4G] [LPA 3000]
[LPA 3500] or comparable product by one of the
following:
a.
Accella Polyurethane Systems.
b.
BASF Corporation.
c.
.
"In-Place Density" Subparagraph below states the density range
published in SPFA AY-104; revise to suit Project, or insert other
attributes if required. Density requirement is not included in ASTM
C1029.
2.
In-Place Density: 2.5 to 3.0 lb/cu. ft. (40.0 to 48.1
kg/cu. m); ASTM D1622/D1622M.
1.
SILICONE COATINGS
Retain "Silicone Coating" Paragraph below if required. Option is an
established standard but not cited in many manufacturers' product
data; verify availability with manufacturer before retaining.
A.
Silicone Coating: Liquid silicone elastomeric coating
system[ complying with ASTM D6694/D6694M and] specifically
formulated for coating spray-applied polyurethane foam
roofing.
Retain "Basis-of-Design Product" Subparagraph and list of
manufacturers below to require a specific product or a comparable
product from manufacturers listed.
1.
Basis-of-Design Product: Subject to compliance with
requirements, provide Huntsman Building Solutions;
Thermo-Sil™ [2200] [3200] or comparable product by one
of the following:
a.
Accella Polyurethane Systems.
b.
BASF Corporation.
c.
.
2.
Composition: Two-component silicone.
3.
Base-Coat Color: Contrasting with topcoat.
Coordinate "Topcoat Color" and "Topcoat Color at Walkways"
subparagraphs below with cool-roof energy performance requirement if
any. Consult coating manufacturer for color and performance
availability.
4.
Topcoat Color: [White] [Gray] [Tan] .
Retain "Topcoat Color at Walkways" Subparagraph below for walkways
formed with additional coatings.
5.
Topcoat Color at Walkways: [White] [Gray] [Tan] color>.
Silicone coatings are generally considered breathable and can have
higher permeability than other coatings.
6.
Vapor Permeance: Minimum [5.0 perms (286 ng/Pa x s x sq.
m)] at 20 mils (0.5 mm) thick in
accordance with ASTM E96/E96M, Desiccant Method,
Procedure A.
1.
ACRYLIC COATINGS
Retain "Acrylic Coating" Paragraph below if required.
A.
Acrylic Coating: Liquid acrylic elastomeric emulsion
coating system specifically formulated for coating
spray-applied polyurethane foam roofing.
Retain "Basis-of-Design Product" Subparagraph and list of
manufacturers below to require a specific product or a comparable
product from manufacturers listed.
1.
Basis-of-Design Product: Subject to compliance with
requirements, provide Huntsman Building Solutions;
Thermo-Flex [250] [500] [7500] [750QS] [1000] [1000QS] [1000FS]
or comparable product by one of the following:
a.
Accella Polyurethane Systems.
b.
GAF.
c.
.
2.
Base-Coat Color: Contrasting with topcoat.
Coordinate "Topcoat Color" and "Topcoat Color at Walkways"
subparagraphs below with cool-roof energy performance requirement if
any. Consult coating manufacturer for color and performance
availability.
3.
Topcoat Color: [White] [Gray] [Tan] .
Retain "Topcoat Color at Walkways" Subparagraph below for walkways
formed with additional coatings.
4.
Topcoat Color at Walkways: [White] [Gray] [Tan] color>.
Acrylics coatings are generally considered breathable and can have
higher permeability than other coatings.
5.
Vapor Permeance: Minimum [24.0 perms (1379 ng/Pa x s x
sq. m)] at 20 mils (0.5 mm) thick in
accordance with ASTM E96/E96M, Desiccant Method,
Procedure A.
1.
SUBSTRATE BOARD
Retain one of three "Thermal Barrier" paragraphs below if required for
coated foamed roofing used over steel deck as part of a
fire-resistance-rated roofing assembly or if required to provide a
plane surface to cover steel-deck flutes. The 2015 IBC stipulates
1/2-inch (13-mm) gypsum board or the requirements of the second
paragraph below as a minimum. Insert other thermal barriers if
applicable.
A.
Thermal Barrier: ASTM C1396/C1396M, gypsum board [1/2 inch
(13 mm)] [Type X, 5/8 inch (16 mm)] thick.
B.
Thermal Barrier: Board product tested in accordance with
and complying withthe requirements of both the Temperature
Transmission Fire Test and the Integrity Fire Test of NFPA
275.
If retaining "Thermal Barrier" Paragraph below, verify that it
complies with IBC requirements for a thermal barrier.
C.
Thermal Barrier: Water-resistant gypsum board with
fiberglass mat laminated to both sides, ASTM C1177/C1177M,
[1/2 inch (13 mm)] [Type X, 5/8 inch (16 mm)] requirement>.
Retain "Manufacturers" Subparagraph and list of manufacturers below to
require products from manufacturers listed or a comparable product
from other manufacturers.
1.
Manufacturers: Subject to compliance with requirements,
provide products by one of the following:
a.
CertainTeed Corporation.
b.
Georgia-Pacific Gypsum LLC.
c.
National Gypsum Company.
d.
USG Corporation.
e.
.
Retain "Recover Board and Fasteners" Paragraph below for re-roofing if
a primer is inadequate and a recover board is recommended by
polyurethane foam manufacturer for existing conditions. In accordance
with SPFA, usually only a primer is necessary.
D.
Recover Board and Fasteners: As recommended in writing by
polyurethane foam manufacturer, and
complying with the requirements in Section 070150.19
"Preparation for Re-Roofing."
E.
Thermal-Barrier Fasteners: Factory-coated steel fasteners
and metal or plastic plates complying with
corrosion-resistance provisions in FM Approvals Standard
4470, and designed and sized for fastening thermal barrier
to substrate.
1.
AUXILIARY MATERIALS
A.
General: Auxiliary materials recommended in writing by
roofing manufacturer for intended use.
1.
Liquid-type auxiliary materials to comply with VOC
limits of authorities having jurisdiction.
First subparagraph below applies to LEED 2009 NC, CI, and CS; LEED v4;
IgCC; ASHRAE 189.1; and Green Globes.
2.
Adhesives and sealants to comply with the following
limits for VOC content:
a.
Plastic Foam Adhesives: 50 g/L.
b.
Gypsum Board and Panel Adhesives: 50 g/L.
c.
Multipurpose Construction Adhesives: 70 g/L.
d.
Fiberglass Adhesives: 80 g/L.
e.
Contact Adhesives: 80 g/L.
f.
PVC Welding Compounds: 510 g/L.
g.
Other Adhesives: 250 g/L.
h.
Single-Ply Roof Membrane Sealants: 450 g/L.
i.
Nonmembrane Roof Sealants: 300 g/L.
j.
Sealant Primers for Nonporous Substrates: 250 g/L.
k.
Sealant Primers for Porous Substrates: 775 g/L.
First subparagraph below applies to LEED 2009 for Schools, Credit IEQ
4.1.
3.
Adhesives and sealants to comply with the testing and
product requirements of the California Department of
Public Health's "Standard Method for the Testing and
Evaluation of Volatile Organic Chemical Emissions from
Indoor Sources Using Environmental Chambers."
First subparagraph below applies to LEED v4.
4.
Adhesives and sealants to comply with the testing and
product requirements of the California Department of
Public Health's "Standard Method for the Testing and
Evaluation of Volatile Organic Chemical Emissions from
Indoor Sources Using Environmental Chambers."
First subparagraph below applies to IgCC.
5.
Adhesives and sealants to comply with the testing and
product requirements of the California Department of
Public Health's "Standard Method for the Testing and
Evaluation of Volatile Organic Chemical Emissions from
Indoor Sources Using Environmental Chambers."
Formaldehyde emissions to not exceed 9 mcg/cu. m or 7
ppb, whichever is less.
First subparagraph below applies to ASHRAE 189.1.
6.
Adhesives and sealants to comply with the testing and
product requirements of the California Department of
Public Health's "Standard Method for the Testing and
Evaluation of Volatile Organic Chemical Emissions from
Indoor Sources Using Environmental Chambers."
Subparagraph below applies to Green Globes.
7.
Adhesives and sealants to comply with the testing and
product requirements of the California Department of
Public Health's "Standard Method for the Testing and
Evaluation of Volatile Organic Chemical Emissions from
Indoor Sources Using Environmental Chambers." The
building concentration of formaldehyde to not exceed
half of the indoor recommended exposure limit, or 33
mcg/cu. m, and that of acetaldehyde to not exceed 9
mcg/cu. m.
Retain "Primer" Paragraph below if substrate requires priming. Consult
manufacturers for recommendations.
B.
Primer: Polyurethane-foam manufacturer's standard
factory-formulated primer.
Retain "Vapor Retarder" Paragraph below if required. Insert additional
requirements to suit Project. See the Evaluations for discussion of
water-vapor transmission.
C.
Vapor Retarder: [Fluid applied] [Bituminous membrane] [As
recommended in writing by coated foamed roofing
manufacturer] .
Retain "Mineral Granules" Paragraph below for improved appearance and
slip resistance or for increased resistance to abrasion, weathering,
and bird damage. Most coated foamed roofing manufacturers offer
granules described below. Consult coated foamed roofing manufacturer
for how mineral-granule color affects cool-roof energy performance
requirement if at all.
D.
Mineral Granules: Ceramic-coated roofing granules, No. 11
screen size with 100 percent passing No. 8 (2.36-mm) sieve
and 98 percent of mass retained by No. 40 (0.42-mm) sieve.
1.
Color: [Buff white] [Gray] [Green] [Red] .
Retain "Reinforcement" Paragraph below for flashing, walkways, and
similar locations if reinforcement is required.
E.
Reinforcement: Flexible polyester or fiberglass mat of
weight, type, and composition recommended in writing by
coating manufacturer for embedment in liquid coating.
Retain "Walkway Pads" Paragraph below for preformed roof walkway pads.
F.
Walkway Pads: Factory formed of nonwoven PVC strands,
porous, UV stabilized, of 5/16-inch (8-mm) nominal
thickness, and approved by coating manufacturer. Provide
pad sizes indicated.
Retain "Manufacturers" Subparagraph and list of manufacturers below to
require products from manufacturers listed or a comparable product
from other manufacturers.
1.
Manufacturers: Subject to compliance with requirements,
provide products by one of the following:
a.
Sika Greenstreak.
b.
.
2.
Color: [Yellow] [Gray] [Blue] [Orange] [Green].
Retain "Sealant" Paragraph below if sealants are required for
substrate preparation and at terminations of sprayed polyurethane
foam.
G.
Sealant: ASTM C920, Class 25, Use NT, Grade NS, [Type M,
multicomponent urethane] [Type S, one-component, neutral-
or acid-curing silicone], and as recommended in writing by
coated foamed roofing manufacturer for substrate and joint
conditions and for compatibility with roofing materials.
Revise "Sheet Flashing and Accessories" Paragraph below if specific
products are required.
H.
Sheet Flashing and Accessories: Types recommended in
writing by coated foamed roofing manufacturer, provided at
locations indicated and as recommended.
1.
EXECUTION
1.
EXAMINATION
A.
Verify that related work is complete. Do not install
coated foamed roofing until roof openings, curbs, and
parapets, if any, are complete and roof drains, vents,
and other roof penetrations are in place.
B.
Examine substrates, areas, and conditions under which
coated foamed roofing will be applied, with Installer
present, for compliance with requirements.
C.
Proceed with installation only after unsatisfactory
conditions have been corrected and substrates are dry.
Retain two paragraphs below if substrate deck is new concrete.
D.
Proceed with installation only after minimum concrete
curing and drying period recommended in writing by coated
foamed roofing manufacturer.
Revise paragraph below to suit Project and manufacturer's requirements
for moisture testing.
E.
Verify that concrete substrate is visibly dry and free of
moisture. Test concrete substrate for capillary moisture
by plastic sheet method in accordance with ASTM D4263[ at
start of each day's work and] at start of each roof area
or plane. Do not proceed with roofing work if moisture
condenses under the plastic sheet.
1.
SUBSTRATE BOARD
Retain this article if required.
A.
General: Install substrate board with long joints in
continuous straight lines, perpendicular to roof slopes
with end joints staggered between rows. Tightly butt
substrate boards together.
Retain one of two "Thermal Barrier" paragraphs below for steel decks
if a mechanically fastened thermal barrier is required.
B.
Thermal Barrier: Fasten to top flanges of steel deck in
accordance with recommendations in FM Approvals' "Approval
Guide" and its FM Global Property Loss Prevention Data
Sheet 1-29 for specified Windstorm Resistance
Classification.
C.
Thermal Barrier: Fasten to top flanges of steel deck to
resist uplift pressure at corners, perimeter, and field of
roof in accordance with coated foamed roofing
manufacturer's written instructions.
Retain "Recover Board" Paragraph below if required by coated foamed
roofing manufacturer for re-roofing existing substrates. Verify
fastener requirements for Project wind loads if retaining second
option.
D.
Recover Board: Install in accordance with coated foamed
roofing manufacturer's written instructions and the
requirements in Section 070150.19 "Preparation for
Re-Roofing." Fasten through existing roofing to roof
structure as indicated. Space fasteners [for wind-uplift
conditions at Project site] [as indicated].
1.
SURFACE PREPARATION
A.
General: Clean and prepare substrate in accordance with
coated foamed roofing manufacturer's written
instructions. Provide clean, dust-free, dew-free, and
dry substrate for coated foamed roofing application.
B.
Remove grease, oil, form-release agents, curing
compounds, and other contaminants from substrate.
Retain first paragraph below for re-roofing.
C.
Prepare substrate for re-covering in accordance with
Section 070150.19 "Preparation for Re-Roofing" and to
coated foamed roofing manufacturer's written instructions.
D.
Cover and mask adjoining surfaces not receiving coated
foamed roofing to prevent overspray or spillage affecting
other construction. Temporarily close off roof drains,
removing roof-drain plugs when not doing coated foamed
roofing work or when rain is forecast.
Retain subparagraph below to obtain clean termination lines after
coating.
1.
Remove masking after polyurethane foam application;
cover and re-mask adjoining surfaces before coating
polyurethane foam.
Verify priming needs with polyurethane foam manufacturers. Concrete,
plywood, and some steel decks may require priming.
E.
Prime substrate as recommended in writing by coated foamed
roofing manufacturer.
F.
Fill, cover, or tape joints and cracks in substrate that
exceed a width of 1/4 inch (6 mm). Remove dust and dirt
from narrower joints and cracks before applying
polyurethane foam.
Retain paragraph below if roofing system requires a vapor retarder;
revise to suit Project. See the Evaluations for discussion of
water-vapor transmission.
G.
Install vapor retarder in accordance with coated foamed
roofing manufacturer's written instructions.
1.
POLYURETHANE FOAM APPLICATION
A.
General: Mix and apply polyurethane foam in accordance
with ASTM D5469/D5469M and coated foamed roofing
manufacturer's written instructions.
1.
Fill irregularities and depressions to prevent
ponding water.
2.
Apply the required full thickness of polyurethane
foam in any specific area on same day.
3.
Apply only the area of polyurethane foam that can be
covered with required base coating on same day or
within 24 hours.
4.
Apply polyurethane foam to avoid overspray beyond
immediate area of work.
B.
Apply polyurethane foam in lift thicknesses of not less
than 1/2 inch (13 mm) and not more than 2 inches (51 mm).
Retain "Slope to Drain" Subparagraph below if tapered thickness or
filling low spots is required.
1.
Slope to Drain: Vary thickness uniformly and fill low
spots to achieve minimum 1/4-inch-per-foot (1:48) slope
to drain unless otherwise indicated.
A.
Apply polyurethane foam to roof penetrations,
terminations, and vertical surfaces as indicated. Unless
otherwise indicated, extend polyurethane foam at least 4
inches (100 mm) above elevation of adjacent roof field.
B.
Surface Finish: Provide finished surface of polyurethane
foam within the following range of surface textures as
defined by ASTM D5469/D5469M:
Last option in "Texture" Subparagraph below is considered undesirable
by SPFA, because it requires at least 50 percent additional coating
material compared to SPFA's theoretical amount. "Popcorn" and
"tree-bark" textures are not listed because ASTM D5469/D5469M and SPFA
consider them unacceptable for coating.
1.
Texture: Smooth to [orange peel] [coarse orange peel] [or]
[verge of popcorn].
A.
Remove and replace polyurethane foam not complying with
surface-texture limitations. Remove defective thickness
and prepare and reapply polyurethane foam with acceptable,
uniform results.
1.
COATING APPLICATION
Time limits in first paragraph below are requirements of the IBC.
A.
Allow polyurethane foam substrate to cure for a minimum of
two hours before coating, and apply coating system to
polyurethane foam no later than 24 hours after applying
the foam. Remove dust, dirt, water, and other contaminants
before applying coating system.
B.
Apply coating system to polyurethane foam by spray,
roller, or other suitable application method in accordance
with coating manufacturer's written instructions.
C.
Apply base coat and one or more topcoats to obtain a
uniform, seamless membrane free of blisters and pinholes.
Apply each coat at right angles to preceding coat, using
contrasting color tints for successive coats.
Revise first subparagraph below to suit Project. Some coating
manufacturers require two or more topcoats over base coat; others
build up required dry film thickness with a single topcoat.
1.
Apply topcoat(s) after removing dust, dirt, water, and
other contaminants from base coat.
Retain "Silicone Coating" or "Acrylic Coating" Subparagraph below, and
retain one option or insert another thickness.
2.
Silicone Coating: Apply coating system to a minimum dry
film thickness [recommended in writing by coated foamed
roofing manufacturer] [of 20 mils (0.50 mm)] [of 22 mils
(0.56 mm)] [of 26 mils (0.66 mm)] [of 30 mils (0.76 mm)]
.
3.
Acrylic Coating: Apply coating system to a minimum dry
film thickness [recommended in writing by coated foamed
roofing manufacturer] [of 13 mils (0.33 mm)] [of 28 mils
(0.71 mm)] [of 32 mils (0.81 mm)] .
Revise height of coating in "Height at Terminations" Paragraph below
if required. SPFA and NRCA recommend a minimum of 2 inches (50 mm)
beyond foam termination; ASTM D5469/D5469M requires 4 inches (100 mm).
D.
Height at Terminations: Apply coating system at wall
terminations and other vertical surfaces to extend
vertically beyond polyurethane foam by a minimum of 4
inches (100 mm).
E.
Mineral Granules: Apply mineral granules over wet topcoat,
using pressure equipment at the rate of [0.5 lb/sq. ft.
(2.45 kg/sq. m)] . Remove excess granules
after topcoat has cured.
F.
Sealant: Apply sealant to perimeter and other terminations
where indicated on Drawings or required by coated foamed
roofing manufacturer.
Retain "Walkways" Paragraph below if required.
G.
Walkways: Install roof walkways in pattern and locations
indicated and as follows:
Retain "Granule-Coated Walkways," "Fabric-Reinforced, Granule-Coated
Walkways," or "Preformed Walkway-Pad Walkways" Subparagraph below.
1.
Granule-Coated Walkways: Mask off completed coating
adjacent to walkways, and apply one or two additional
topcoats to achieve a minimum dry film thickness
recommended in writing by coated foamed roofing
manufacturer. Spread mineral granules uniformly at a
rate of 0.5 lb/sq. ft. (2.45 kg/sq. m) into final wet
coating. Remove masking and excess granules after
topcoat has cured.
2.
Fabric-Reinforced, Granule-Coated Walkways: Mask off
completed coating adjacent to walkways, and apply one
additional topcoat to achieve a minimum dry film
thickness recommended in writing by coated foamed
roofing manufacturer. Lay reinforcing fabric into wet
coating and apply another topcoat, completely filling
fabric. Spread mineral granules uniformly at a rate of
0.5 lb/sq. ft. (2.45 kg/sq. m) into final wet coating.
Remove masking and excess granules after topcoat has
cured.
3.
Preformed Walkway-Pad Walkways: Adhere walkway pads to
substrate with compatible adhesive in accordance with
coated foamed roofing manufacturer's written
instructions.
1.
FIELD QUALITY CONTROL
Retain "Testing Agency" Paragraph below to identify who will perform
tests and inspections. If retaining second option, retain "Field
quality-control reports" Paragraph in "Informational Submittals"
Article.
Some coated foamed roofing manufacturers engage testing agencies to
test quality of in-place roofing system and require contractors to
make repairs as a condition of issuing warranties.
A.
Testing Agency: [Owner will engage] [Engage] a qualified
testing agency to perform tests and inspections.
1.
Testing agency will identify, seal, and certify
samples of materials taken from Project site, with
Contractor present.
2.
Testing agency will perform tests for product
characteristics specified or cited in manufacturer's
product data.
Number of samples and sampling frequency in first two subparagraphs
below are based on ASTM D7119/D7119M. Revise sampling rate in first
subparagraph to suit Project.
a.
Two core samples will be required for roof areas of up
to 10,000 sq. ft. (900 sq. m), and one core sample
will be required for each additional 10,000 sq. ft.
(900 sq. m) or part thereof.
b.
Six slit-test samples will be required for each 10,000
sq. ft. (900 sq. m) of roof area to determine, as a
minimum, the number of coats applied and dry film
thickness of coating.
1.
Testing agency will verify that surfaces slope to drain.
See Section 014000 "Quality Requirements" for retesting and
reinspecting requirements and Section 017300 "Execution" for
requirements for correcting the Work.
B.
Coated foamed roofing will be considered defective if it
does not pass tests and inspections.
C.
Refill cores, repair slits, and re-coat test areas.
D.
Prepare test and inspection reports.
1.
REPAIR AND RE-COATING
A.
Correct deficiencies in, or remove, foam or coatings
that do not comply with requirements; fill and repair
substrates and reapply materials.
B.
Repair and re-coat coated foamed roofing in accordance
with ASTM D6705/D6705M and manufacturer's written
instructions.
2.
CURING, PROTECTING, AND CLEANING
A.
Cure coatings in accordance with manufacturer's written
instructions, taking care to prevent contamination and
damage during application stages and curing. Do not
permit traffic on uncured coatings.
B.
Protect coated foamed roofing from damage and wear
during remainder of construction period.
C.
Clean overspray and spillage from adjacent construction
using cleaning agents and procedures recommended in
writing by manufacturer of affected construction.
END OF SECTION 075700
COATED FOAMED ROOFING
075700 - 14

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