ASTM D7445-17 - 1.6.2017
 
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.

1.5 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.

1.6 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.

1.7 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.

1.8 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

D3679-25

Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding

D3892-15(2020)

Standard Practice for Packaging/Packing of Plastics

D4226-25

Standard Test Methods for Impact Resistance of Rigid Poly(Vinyl Chloride) (PVC) Building Products

D4477-24

Standard Specification for Rigid (Unplasticized) Poly(Vinyl Chloride) (PVC) Soffit

D4756-15

Standard Practice for Installation of Rigid Poly(Vinyl Chloride) (PVC) Siding and Soffit

D5206-24

Standard Test Method for Windload Resistance of Rigid Plastic Siding

D5947-24

Standard Test Methods for Physical Dimensions of Solid Plastics Specimens

D7209-06

Standard Guide for Waste Reduction, Resource Recovery, and Use of Recycled Polymeric Materials and Products (Withdrawn 2015)

E84-26a

Standard Test Method for Surface Burning Characteristics of Building Materials (Includes all amendments and changes 4/15/2026).

E631-15(2024)

Standard Terminology of Building Constructions

E1753-26a

Standard Practice for Use of Qualitative Chemical Spot Test Kits for Detection of Lead in Dry Paint Films (Includes all amendments and changes 4/9/2026).

G147-24

Standard Practice for Conditioning and Handling of Materials for Natural and Artificial Weathering Tests

D2244-25

Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates

D618-21

Standard Practice for Conditioning Plastics for Testing

D635-22

Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Plastics in a Horizontal Position

D696-24

Standard Test Method for Coefficient of Linear Thermal Expansion of Plastics Between ?30?C and +30?C with a Vitreous Silica Dilatometer

D883-26

Standard Terminology Relating to Plastics

D1042-22

Standard Test Method for Linear Dimensional Changes of Plastics Caused by Exposure to Heat and Moisture

D1435-20

Standard Practice for Outdoor Weathering of Plastics

D1600-18

Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)

D2457-21

Standard Test Method for Specular Gloss of Plastic Films and Solid Plastics