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Vinyl Siding Institute

Siding & Exteriors

About Us

The Vinyl Siding Institute, Inc. (VSI) works with manufacturers to ensure the quality of vinyl, insulated, and polypropylene siding through its VSI Product Certification Program. Through its "Design. Build, Live. No Limits." initiative, VSI educates homeowners, remodelers, builders, planners, architects, designers and other residential construction professionals about the many benefits of vinyl siding including, beauty, durability, low maintenance, sustainability performance and value.

Services Provided

Vinyl Siding


VSI certified vinyl siding (ASTM D3679), polyproylene siding (ASTM D7254), and insulated siding (ASTM D7793) are all verified by an independent quality control agency to meet or exceed these ASTM quality standards. VSI's Certified Installer Program teaches and tests to ASTM D4756.

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8 Projects

Queen Anne Home Design Ideas

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Vinyl siding has the lowest total installed cost (materials + labor) of any exterior cladding, whether for new construction or remodeling. Most manufacturers offer lifetime warranties. Homeowners benefit from vinyl siding's lifetime value because it never needs painting, caulking, or re-pointing.