Marvin Windows & Doors

PHIUS Certified Windows

Marvin Windows and Doors received certification from the Passive House Institute for its Ultimate Casement and Clad Direct Glaze Polygon Windows. The energy standards are met for the Ultimate Casement window through its availability with tripane glass in a 1 3/8-in. profile or quad glazing with heat mirror technology in a 1-in. profile. 

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