Texas Department of Insurance Approval Qualification

The Keystone Structural and Impact Performance Certification Program is accredited by the American National Standards Institute (ANSI), and offers fenestration product manufacturers a third party verified, nationally-recognized method for demonstrating window, door, and skylight design pressure and resistance to flying debris resulting from hurricanes, as required for Texas Department of Insurance Approvals.

Click here for the 02/2014 revised submittal requirements documents forWINDOWS,DOORS, orSKYLIGHTS.

TDI Photo