550 Series Windows

Our 550 window series technical specs are listed below.  Feel free to contact our team if you’re interested in learning more about our customizable 550 series windows for your next commercial project.  These windows are offered in fixed and double hung models and have been used in numerous projects all over the United States.

Double Hung
Frame Depth3.25"
Structural RatingClass AW-PG55
Test Size1524 x 2515 (60 x 99)
Design Pressure
ASTM E330
2640 Pa (55.14 PSF)
Air Infiltration(ASTM E283)0.2 L/s/m^2 (<0.01 CFM/ft^2) 300 Pa (6.27 PSF)
Water Resistance
(ASTM E547 and E331)
580 Pa (12.11 PSF)
Uniform Load Structural
(ASTM 330)
3960 Pa (82.71 PSF)
U-Factor (NFRC | 100/200)
0.32 - 0.39
CRF (NFRC | 100/200)
Forced Entry Resistance
ASTM 588
Type A Grade 10

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