Only those products that are independently verified to follow stringent quality control standards as well as meeting or exceeding ASTM standards can carry the Certified Vinyl Siding badge.
VSI-Certified products are verified to meet the following ASTM standards:
- ASTM D3679 for Vinyl Siding
- ASTM D7793 for Insulated Vinyl Siding
- ASTM D7254 for Polypropylene Siding
- ASTM D6864, ASTM D7251, or ASTM D7856 for color retention
Build consumer trust that your products are designed to perform to the highest product standards in the industry with our product certification program.