Products in the Keystone family have been staples of Quaker’s product offering for decades. Their usage can span up to seven stories, but have been used as high as ten stories in some parts of the country.
Rating: CW50Market Applications
Air-Infiltration (cfm/ft2): <0.10
CR: 53 (Energy Basic)
Design Pressure (psf): 60
Doors Type: n/a
Frame Depth: 2.375"
Performance Class: HC
Performance Grade: 60
Product Material: Aluminum
Test Size (inches): 64" x 71"
U- Value: 0.27 - 0.32
Uniform Load Structural (psf): 90.23
Water Resistence (psf): 7.52
Window Type: Fixed
Commercial, Education, Government, Hospitality / Hotels, Multi-ResidentialAdditional Information
Quaker Window Products reserves the right to change, without notice, these drawings and specifications as products are continuously improved.