Open Up to Performance is an educational resource provided by the Window & Door Manufacturers Association (WDMA) for builders, remodelers and architects on designing, specifying and building with high-performance and high-quality windows, doors and skylights.  The site features informational content to help you select the best products and find manufacturers for your project.  You’ll also find the latest industry news and trends about today’s windows, doors and skylights—designed for performance, made for life.
About WDMA

The Window & Door Manufacturers Association (WDMA) defines the standards of excellence in the residential and commercial window, door and skylight industry, and advances these standards among its industry members – the product manufacturers. With the help of some of the most knowledgeable experts in the space, WDMA drives the development, creation and implementation of key standards for the window, door and skylight industry.

WDMA is one of the three standard writers of the North American Fenestration Standards (NAFS) and the sole author of the ANSI-approved Architectural Wood Door Standards. The NAFS performance requirements and test methods are referenced in residential and commercial building codes and form the basis for high-performing, relevant product ratings. WDMA’s Architectural Wood Door Standards are used primarily for specifying interior commercial doors.

WDMA sponsors the ANSI-accredited WDMA Hallmark Certification Program. The WDMA Hallmark Certification Program provides code officials, builders, architects and consumers with an industry-wide recognized certification process and listing of products that have demonstrated compliance with referenced performance standards. The WDMA Hallmark Certification Program provides certification to air, water, structural and impact performance standards.