Through the VSI Product Certification Program, manufacturers can verify that their products meet or exceed the industry standards for performance and color retention.
Products undergo a series of rigorous tests and unannounced inspections by an independent, accredited quality control agency.
Vinyl siding certified through the VSI program is evaluated to ensure it complies with the ASTM D3679 standard for:
The newest, best and most relevant information on vinyl siding products and performance. See our top picks below, or filter by type to find the resources you need now.
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Certified Insulated Siding — Quality and Comfort You Can Count On
Homes clad with certified insulated siding are assured that its continuous insulation will help prevent heat from escaping in winter and entering in summer through the exterior walls’ framing studs.
Like vinyl siding, polypropylene is another polymeric siding with its own unique quality standard and performance requirements. Learn more about how it’s certified with independent, third-party verification.
The Vinyl Siding Institute continues to operate on behalf of the industry during this challenging time. We are monitoring and working to influence areas that impact our members and their customers and sending you updates in real time. If you need to look up state and local COVID-19 restrictions on business operations in your area, the National Association of Manufacturers State Restriction Snapshot Tracker is a concise resource for that information and is being updated daily. Please reach out to us with any questions or needs, and be well.