ASTM D7793-12

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D7793 −12 AnAmerican National Standard
Standard Specification for
Insulated Vinyl Siding
This standard is issued under the fixed designation D7793; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
1.1 This specification establishes requirements for insulated 2.1 ASTM Standards:
vinyl siding, which is vinyl siding with integral foam plastic C297/C297MTest Method for Flatwise Tensile Strength of
insulating material, where the vinyl siding is manufactured Sandwich Constructions
from rigid PVC compound. Compliance with this standard C578Specification for Rigid, Cellular Polystyrene Thermal
requires insulated vinyl siding to demonstrate a thermal insu- Insulation
lation value of R-2.0 or greater. Other performance require- C591Specification for Unfaced Preformed Rigid Cellular
ments and test methods addressed by this standard include Polyisocyanurate Thermal Insulation
materials properties and dimensions, warp, shrinkage, impact C1199TestMethodforMeasuringtheSteady-StateThermal
strength, expansion, appearance, thermal distortion resistance, Transmittance of Fenestration Systems Using Hot Box
and windload resistance. Methods of indicating compliance Methods
with this specification are also provided. C1289Specification for Faced Rigid Cellular Polyisocyanu-
NOTE1—Insulatedvinylsidingiscomposedoftwomajorcomponents:
rate Thermal Insulation Board
the vinyl siding and the insulating material. It is intended that the vinyl
C1363Test Method for Thermal Performance of Building
siding portion comply with Specification D3679. Applicable portions of
Materials and Envelope Assemblies by Means of a Hot
Specification D3679 are included in this specification.Additional require-
Box Apparatus
ments that pertain only to the insulation as a separate material, or to the
combination of vinyl siding and insulation as a whole, are also included. D618Practice for Conditioning Plastics for Testing
For further explanation, see Appendix X1.
D635Test Method for Rate of Burning and/or Extent and
Time of Burning of Plastics in a Horizontal Position
1.2 Insulated vinyl siding shall be tested with the insulation
D696TestMethodforCoefficientofLinearThermalExpan-
material in place or removed, as specified in the applicable
sion of Plastics Between −30°C and 30°C with aVitreous
requirement or test method.
Silica Dilatometer
1.3 The use of PVC recycled plastic in this product shall be
D1042Test Method for Linear Dimensional Changes of
in accordance with the requirements in Section 4.
Plastics Caused by Exposure to Heat and Moisture
1.4 Insulated vinyl siding produced to this specification
D1183Practices for Resistance of Adhesives to Cyclic
shall be installed in accordance with Practice D4756. Refer-
Laboratory Aging Conditions
ence shall also be made to the manufacturer’s installation
D1435Practice for Outdoor Weathering of Plastics
instructions for the specific product to be installed.
D2244Practice for Calculation of Color Tolerances and
Color Differences from Instrumentally Measured Color
1.5 Thevaluesstatedininch-poundunitsaretoberegarded
Coordinates
as standard. The values given in parentheses are mathematical
D2457Test Method for Specular Gloss of Plastic Films and
conversions to SI units that are provided for information only
Solid Plastics
and are not considered standard.
D3679Specification for Rigid Poly(Vinyl Chloride) (PVC)
1.6 This standard does not purport to address all of the
Siding
safety concerns, if any, associated with its use. It is the
D3892Practice for Packaging/Packing of Plastics
responsibility of the user of this standard to establish appro-
D4226Test Methods for Impact Resistance of Rigid Poly-
priate safety and health practices and determine the applica-
(Vinyl Chloride) (PVC) Building Products
bility of regulatory limitations prior to use.
D4756Practice for Installation of Rigid Poly(Vinyl Chlo-
NOTE 2—There is no known ISO equivalent to this standard.
ride) (PVC) Siding and Soffit
This specification is under the jurisdiction of ASTM Committee D20 on
PlasticsandisthedirectresponsibilityofSubcommitteeD20.24onPlasticBuilding For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Products. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved June 1, 2012. Published July 2012. DOI:10.1520/ Standards volume information, refer to the standard’s Document Summary page on
D7793–12. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7793−12
D5206Test Method for Windload Resistance of Rigid Plas- with 6.5 for a specific product during all productions runs for
tic Siding the most recent six-month period.
D5947Test Methods for Physical Dimensions of Solid
3.1.7 vertical coverage—The net vertical distance of the
Plastics Specimens
wall covered by a single insulated vinyl siding panel, disre-
D7209Guide for Waste Reduction, Resource Recovery, and
garding any portions of the panel that are overlapped by
Use of Recycled Polymeric Materials and Products
adjacent panels above or below.
D7445Specification for Rigid Poly(Vinyl Chloride) (PVC)
3.1.8 temperate northern climate—in weather testing, a
Siding with Foam Plastic Backing (Backed Vinyl Siding)
North American metropolitan area testing site located within
E84Test Method for Surface Burning Characteristics of
73 to 100°W longitude and 37 to 45°N latitude.
Building Materials
3.1.9 vinyl siding—a shaped material, made principally
E1753Practice for Use of Qualitative Chemical Spot Test
from rigid poly(vinyl chloride) (PVC), that is used to clad
Kits for Detection of Lead in Dry Paint Films
exterior walls of buildings. In this standard, vinyl siding refers
G147Practice for Conditioning and Handling of Nonmetal-
to the rigid profile to which the insulation is attached.
lic Materials for Natural and Artificial Weathering Tests
2.2 American Society of Civil Engineers (ASCE):
4. Materials and Manufacture
ASCE7-02MinimumDesignLoadsforBuildingsandOther
Structures 4.1 Vinyl Siding:
4.1.1 The vinyl siding, exclusive of foam plastic insulating
2.3 International Code Council–Evaluation Services (ICC-
material, shall be made of one or more layers of poly(vinyl
ES):
chloride) (PVC) compound.Any layers of materials other than
AC05Acceptance Criteria for Sandwich Panel Adhesives
poly (vinyl chloride) (PVC) compound shall be kept to less
2.4 International Standards Organization (ISO):
than 20% by volume. This limitation does not apply to the
ISO/IECGuide 65General requirements for bodies operat-
insulation material.
ing product certification systems
4.1.2 Where rigid PVC recycled plastic as defined in Guide
2.5 Federal Standards:
D7209 is used, the vinyl siding containing the PVC recycled
16 CFR Part 460Labeling and Advertising of Home Insu-
plastic shall meet all of the requirements of Sections 3, 4, and
lation
5.
4.1.3 The vinyl siding material, exclusive of insulation
3. Terminology
material, when tested in accordance with Test Method D635,
3.1 Definitions:
shall not exceed an average extent of burn of 4 in. (100 mm),
3.1.1 center-pinning—aninstallationtechniqueinwhichthe
with an average time of burn not to exceed 10 seconds. A
siding panel is fastened tightly through the nail slot at the
minimum sample thickness of 0.035 in. (0.9 mm) is required.
center length of the panel, in order to cause thermal expansion
(Warning—The flammability testing data, conclusions, and
and contraction to occur equally in both directions from the
recommendations of Test Method D635 relate solely to the
center.
measurement and description of properties for classification of
3.1.2 cohesive failure—in the context of tensile testing, the vinyl siding material in response to flame under controlled
internal separation of the adhesive within the adhesive layer, laboratory conditions and shall not be used for the description
resulting in attachment of adhesive material to the surface of or appraisal of the fire hazard of vinyl siding under actual fire
both substrates conditions.)
3.1.3 insulation; insulating material—foam plastic material
4.2 Foam Plastic Insulation:
that is combined at the factory with a vinyl siding profile to
4.2.1 Thefoamplasticinsulationshallbemadeofoneofthe
form insulated vinyl siding. following materials:
4.2.1.1 Expanded polystyrene complying with Specification
3.1.4 insulated vinyl siding—a vinyl cladding product sold
C578.
with manufacturer-installed foam plastic insulating material as
4.2.1.2 Extruded polystyrene complying with Specification
an integral part of the cladding product. The vinyl cladding
C578
portion of insulated vinyl siding meets the definition of vinyl
4.2.1.3 Polyisocyanurate complying with Specification
siding.
C591 or Specification C1289
3.1.5 nominal—the value that a manufacturer consistently
4.2.2 ThefoamplasticinsulationshallhaveaFlameSpread
uses to represent a specific property or dimension of a vinyl
Index not greater than 75 and a Smoke Developed Index not
siding product in public claims including, but not limited to,
greater than 450 when tested separately under Test Method
product literature, advertisements, quotations, and certificates
E84.
of conformance.
4.3 Adhesives:
3.1.6 process average thickness—the rolling, arithmetic
4.3.1 The suitability for outdoor use of an adhesive used to
meanofaveragespecimenthicknessesmeasuredinaccordance
bond the vinyl siding and the insulation, if any, shall be
determined by the following procedure.
4.3.1.1 Prepare a minimum of 10 samples consisting of two
Available fromAmerican Society of Civil Engineers (ASCE), 1801Alexander
Bell Dr., Reston, VA 20191, http://www.asce.org. Douglas fir-larch blocks or other appropriate substrates,
D7793−12
bonded by the adhesive, in accordance with Test Method 6 ⁄16 in. (1.6 mm) of the nominal width when measured in
C297/C297M. Each block is to be 2.0 inches square. The accordance with 6.3 and 6.4.
adhesive shall be applied and cured in accordance with the 5.1.2 Thickness—These requirements pertain only to mea-
adhesive manufacturer’s instructions. surements of the portions of the vinyl siding that are exposed
(1)The material selected for use as the substrate shall be afterinstallationofthepanel,measuredinaccordancewiththe
capable of withstanding the accelerated aging described in procedurein6.5.Theaveragethicknessofeachspecimenshall
4.3.1.2 without damage or deterioration of the substrate. be no less than 0.035 in. No individual measurement shall be
thinner than 0.003 in. below the nominal thickness. The
NOTE 3—Other appropriate substrates, such as metal or plastic, com-
process average thickness as defined in 3.1.6 shall be no
patible with the adhesive according to the manufacturer’s guidelines, can
thinner than 0.001 in. below the nominal thickness.
be used in place of the Douglas fir-larch blocks. Because in accordance
with 4.3.1.4.1 at least 75% of samples must fail in a cohesive mode, a 5.1.3 Camber—Afulllengthofvinylsiding(typically10or
substrate should be selected that is expected to be stronger than the
12 ft (3.05 or 3.61 m)) shall not have a camber greater than ⁄8
adhesive and which will form a tight bond with the adhesive.
in. (3.2 mm) when measured in accordance with 6.6.
4.3.1.2 Subject 50 percent of the samples to accelerated 5.1.4 Heat Shrinkage—Theaverageheatshrinkageshallnot
exceed3.0%whendeterminedbythemethoddescribedin6.7.
aging under Test Method D1183, Test Condition C, for three
5.1.5 Impact Resistance—The vinyl siding shall have a
cycles.Thelow-temperatureportionofthecycleisnotrequired
minimum impact strength of 60 in.•lbf (6.78 J) when tested in
to be colder than -40°F (-40°C) and the relative humidity
accordance with 6.8.
during this portion of the cycle shall not be greater than 10%
5.1.6 Gloss—The gloss of smooth and embossed vinyl
RH.
siding shall be uniform across the exposed surface. The
4.3.1.3 Condition and test all of the samples in accordance
average of all readings for a panel determined in 6.11.2.5 shall
with Test Method C297/C297M.
not differ from the manufacturer’s specified gloss value more
4.3.1.4 Acceptable Performance:
than the permitted variation in Table 1, and each individual
(1)For a valid test, the mode of failure for no fewer than
reading shall not vary more than 10 points from the average.
75%ofthesamplesshallbecohesive.Onlysamplesthatfailed
Gloss of smooth and embossed vinyl siding shall be tested in
cohesively are counted in the following. The average ultimate
accordance with 6.11.
tensile strength of the samples that were subjected to acceler-
TABLE 1 Gloss Values
ated aging shall not be less than 80% of the average ultimate
Manufacturer’s Specified Permitted difference from
tensile strength of the samples that were subjected to condi-
Gloss Value Manufacturer’s Specified Gloss
tioning only.
Value
(2)As an alternative, adhesives that are covered by a Less than or equal to 35 ±8
Greater than 35 ±10
currentreport,issuedbyanagencyaccreditedunderISOGuide
65, as a Type I, Class 2 adhesive in accordance with Accep- 5.1.7 Uniformity of Color—The color specified shall be
tance Criteria AC05, will have exhibited acceptable perfor- uniform on the exposed surface of the vinyl siding panels,
mance under the above procedure. except in the case of variegated colors. When tested in
accordance with 6.13, the total color change, ∆E, between a
NOTE 4—Compatibility of the adhesive with the vinyl siding and
productionspecimenandtheappropriatereferencespecimenor
insulation used in the insulated vinyl siding is evaluated separately, under
agreed-uponcolorcoordinatesshallnotvarybymorethan1.5,
5.2.5.
andthechromaticcoordinatesthereofshallnotchangebymore
4.4 Insulated Vinyl Siding:
than 6∆a =1.0 and 6∆b =1.0.
H H
4.4.1 Insulated vinyl siding shall not contain elemental lead
5.1.8 Weathering—The vinyl siding shall maintain a uni-
(Pb) or compounds of that material other than traces incidental
form color and be free of any visual surface or structural
to raw materials or the manufacturing process. This limitation
changes such as peeling, chipping, cracking, flaking, and
applies to both PVC substrate and to any cap or film material,
pitting when tested in accordance with 6.10.
as well as the insulation material. Compliance with this
5.2 Requirements Applicable to Insulated Vinyl Siding—The
requirement shall be demonstrated by one of the methods in
provisions of 5.2.1–5.2.6 apply to insulated vinyl si
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