Vinyl Siding Institute Product Certification Program

Provide verification that your siding products exceed industry standards

Assure your customers that your products meet or exceed rigorous testing procedures and will provide the quality, durability, and longevity they promise. End-users can feel comfortable and confident when specifying or purchasing your product because the VSI Certification Mark confirms that the product meets industry standards.

Accredited to ASTM D3679, ASTM D7793, and ASTM D7254, the accepted industry standards for vinyl siding, insulated vinyl siding, and polypropylene siding respectively, we can inspect and verify that your products meet or exceed the applicable standard.

Vinyl Siding & Insulated Vinyl Siding
Confirm that your vinyl siding products meet performance characteristics for weatherability, windload, and impact resistance covered by ASTM D3679 and ASTM D7793. Program offerings may also include the color retention requirements of ASTM D7856 which indicates that products will resist major color changes in a variety of climates based on two-year outdoor weathering studies.

Polypropylene Siding
Test your polypropylene siding products to ensure they meet the performance characteristics for impact resistance, weatherability, and surface flame spread covered under ASTM D7254. Program offerings may also include the color retention requirements of ASTM D7856 which indicates that products will resist major color changes in a variety of climates based on two-year outdoor weathering studies.

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