Request a Brochure Find a Supplier Architectural Toolbox Energy Efficiency CHOOSE ANOTHER RESOURCE Performance Ratings Care and Maintenance Coastal Information Consumer Information Energy Efficiency Environmental Stewardship Glossary How To Installation and Finishing Other Information Sources Warranties How do our windows and doors perform thermally, structurally and acoustically? Find out by using the links below, which give detailed ratings for many of our product collections. Thermal ratings:      Custom Wood      Premium Wood Siteline EX      Premium Wood Tradition Plus      Builders Clad-Wood Structural performance:      Custom Wood      Premium Wood Siteline EX      Premium Wood Tradition Plus      Builders Clad-Wood Acoustical ratings:      All collections Egress Calculator:      All Collections Thermal ratings:      Premium Vinyl      Premium Atlantic Vinyl      Brickmould Vinyl      Builders Vinyl      Builders LT Vinyl      Windowmaster Vinyl Structural performance:      Premium Vinyl      Premium Atlantic Vinyl      Brickmould Vinyl      Flat Casing Vinyl      Builders Vinyl      Builders LT Vinyl      Windowmaster 600 Vinyl      Windowmaster 700 Vinyl      Windowmaster 800 Vinyl Acoustical ratings:      All collections Egress Calculator:      All Collections Thermal ratings:      All Collections Structural performance:      Premium Aluminum (West Coast)      Premium Atlantic Aluminum      Builders (Florida) Aluminum      Windowmaster 500 Aluminum Egress Calculator:      All Collections Thermal ratings:      IWP® Aurora® Custom Fiberglass      Premium Fiberglass      Steel Performance Ratings:      IWP Aurora Custom Fiberglass Acoustical ratings:      All Collections Acoustical ratings:      All Collections

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