Armortex® FE/BR 15 minute fixed windows are rated and tested to 15 minute in accordance with SD-STD01.01, Revision G. Constructed of Armortex® 625 thermally broken 2' x 6' anodized aluminum framing system. Available fixed 15 min FE/BR aluminum windows GWV-15A-ARM-01 (750mm x 1500 mm) and GWV-15R-ARM-01A (1500mm x 2250mm).