ASTM D7445-18
(Specification)Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding with Foam Plastic Backing (Backed Vinyl Siding)
Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding with Foam Plastic Backing (Backed Vinyl Siding)
ABSTRACT
This specification establishes requirements for rigid poly(vinyl chloride) siding with integral foam plastic backing. The poly(vinyl chloride) compound shall be extruded into siding and compounded so as to provide heat stability and weather exposure stability. Tests shall be performed on the vinyl siding, exclusive of any backing material, to determine compliance with length and width, thickness, camber, heat shrinkage, impact resistance, coefficient of linear expansion, gloss, color, and color uniformity requirements. The backed vinyl siding with the backing material shall also undergo testing to ascertain conformance to the following requirements: surface distortion, weatherability, windload resistance, and nail slot allowance for thermal expansion.
SCOPE
1.1 This specification establishes requirements for vinyl siding with integral foam plastic backing, where the siding is manufactured from rigid PVC compound. Performance requirements and test methods addressed by this standard include materials properties and dimensions, warp, shrinkage, impact strength, expansion, appearance, and wind load resistance. Methods of indicating compliance with this specification are also provided.
Note 1: Backed vinyl siding is composed of two major components: the siding and the backing. It is intended that the siding portion comply with Specification D3679. Applicable portions of Specification D3679 are included in this specification. Additional requirements that pertain only to the backing as a separate material, or to the combination of siding and backing as a whole, are also included.
1.2 Backed vinyl siding shall be tested with the backing material in place or removed, as specified in the applicable requirement or test method.
1.3 The use of PVC recycled plastic in this product shall be in accordance with the requirements in Section 4.
1.4 Siding produced to this specification shall be installed in accordance with Practice D4756. Reference shall also be made to the manufacturer's installation instructions for the specific product to be installed.
Note 2: Information with regard to siding maintenance shall be obtained from the manufacturer.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 3: There is no known ISO equivalent to this standard.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D7445 − 18 An American National Standard
Standard Specification for
Rigid Poly(Vinyl Chloride) (PVC) Siding with Foam Plastic
1
Backing (Backed Vinyl Siding)
This standard is issued under the fixed designation D7445; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
NOTE 3—There is no known ISO equivalent to this standard.
1. Scope*
1.7 This international standard was developed in accor-
1.1 This specification establishes requirements for vinyl
dance with internationally recognized principles on standard-
siding with integral foam plastic backing, where the siding is
ization established in the Decision on Principles for the
manufactured from rigid PVC compound. Performance re-
Development of International Standards, Guides and Recom-
quirements and test methods addressed by this standard include
mendations issued by the World Trade Organization Technical
materials properties and dimensions, warp, shrinkage, impact
Barriers to Trade (TBT) Committee.
strength, expansion, appearance, and wind load resistance.
Methods of indicating compliance with this specification are
2. Referenced Documents
also provided.
2
2.1 ASTM Standards:
NOTE 1—Backed vinyl siding is composed of two major components:
D618 Practice for Conditioning Plastics for Testing
the siding and the backing. It is intended that the siding portion comply
D635 Test Method for Rate of Burning and/or Extent and
with Specification D3679. Applicable portions of Specification D3679 are
included in this specification. Additional requirements that pertain only to Time of Burning of Plastics in a Horizontal Position
the backing as a separate material, or to the combination of siding and
D696 Test Method for Coefficient of Linear Thermal Expan-
backing as a whole, are also included.
sion of Plastics Between −30°C and 30°C with a Vitreous
1.2 Backed vinyl siding shall be tested with the backing
Silica Dilatometer
material in place or removed, as specified in the applicable
D883 Terminology Relating to Plastics
requirement or test method.
D1042 Test Method for Linear Dimensional Changes of
Plastics Caused by Exposure to Heat and Moisture
1.3 The use of PVC recycled plastic in this product shall be
D1435 Practice for Outdoor Weathering of Plastics
in accordance with the requirements in Section 4.
D1600 Terminology for Abbreviated Terms Relating to Plas-
1.4 Siding produced to this specification shall be installed in
tics
accordance with Practice D4756. Reference shall also be made
D2244 Practice for Calculation of Color Tolerances and
to the manufacturer’s installation instructions for the specific
Color Differences from Instrumentally Measured Color
product to be installed.
Coordinates
NOTE 2—Information with regard to siding maintenance shall be D2457 Test Method for Specular Gloss of Plastic Films and
obtained from the manufacturer.
Solid Plastics
D3679 Specification for Rigid Poly(Vinyl Chloride) (PVC)
1.5 The values stated in inch-pound units are to be regarded
Siding
as standard. The values given in parentheses are mathematical
D3892 Practice for Packaging/Packing of Plastics
conversions to SI units that are provided for information only
D4226 Test Methods for Impact Resistance of Rigid Poly-
and are not considered standard.
(Vinyl Chloride) (PVC) Building Products
1.6 This standard does not purport to address all of the
D4756 Practice for Installation of Rigid Poly(Vinyl Chlo-
safety concerns, if any, associated with its use. It is the
3
ride) (PVC) Siding and Soffit (Withdrawn 2023)
responsibility of the user of this standard to establish appro-
D5206 Test Method for Windload Resistance of Rigid Plas-
priate safety, health, and environmental practices and deter-
tic Siding
mine the applicability of regulatory limitations prior to use.
1 2
This specification is under the jurisdiction of ASTM Committee D20 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Plastics and is the direct responsibility of Subcommittee D20.24 on Plastic Building contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Products. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Jan. 1, 2018. Published February 2018. Originally the ASTM website.
3
approved in 1979. Last previous edition approved in 2017 as D7445 – 17. DOI: The last approved version of this historical standard is referenced on
10.1520/D7445-18. www.astm.org.
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7445 − 17 D7445 − 18 An American National Standard
Standard Specification for
Rigid Poly(Vinyl Chloride) (PVC) Siding with Foam Plastic
1
Backing (Backed Vinyl Siding)
This standard is issued under the fixed designation D7445; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification establishes requirements for vinyl siding with integral foam plastic backing, where the siding is
manufactured from rigid PVC compound. Performance requirements and test methods addressed by this standard include materials
properties and dimensions, warp, shrinkage, impact strength, expansion, appearance, and wind load resistance. Methods of
indicating compliance with this specification are also provided.
NOTE 1—Backed vinyl siding is composed of two major components: the siding and the backing. It is intended that the siding portion comply with
Specification D3679. Applicable portions of Specification D3679 are included in this specification. Additional requirements that pertain only to the
backing as a separate material, or to the combination of siding and backing as a whole, are also included.
1.2 Backed vinyl siding shall be tested with the backing material in place or removed, as specified in the applicable requirement
or test method.
1.3 The use of PVC recycled plastic in this product shall be in accordance with the requirements in Section 4.
1.4 Rigid PVC soffit is covered in Specification D4477.
1.4 Siding produced to this specification shall be installed in accordance with Practice D4756. Reference shall also be made to
the manufacturer’s installation instructions for the specific product to be installed.
NOTE 2—Information with regard to siding maintenance shall be obtained from the manufacturer.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
NOTE 3—There is no known ISO equivalent to this standard.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D618 Practice for Conditioning Plastics for Testing
D635 Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position
D696 Test Method for Coefficient of Linear Thermal Expansion of Plastics Between –30°C and 30°C with a Vitreous Silica
Dilatometer
D883 Terminology Relating to Plastics
D1042 Test Method for Linear Dimensional Changes of Plastics Caused by Exposure to Heat and Moisture
D1435 Practice for Outdoor Weathering of Plastics
D1600 Terminology for Abbreviated Terms Relating to Plastics
1
This specification is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.24 on Plastic Building Products.
Current edition approved June 1, 2017Jan. 1, 2018. Published July 2017February 2018. Originally approved in 1979. Last previous edition approved in 20092017 as
D7445 – 09.D7445 – 17. DOI: 10.1520/D7445-17.10.1520/D7445-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7445 − 18
D2244 Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
D2457 Test Method for Specular Gloss of Plastic Films and Solid Plastics
D3679 Sp
...
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