The Gerkin 5300 casement window is designed with performance in mind. The air infiltration on our casement is often better than our competitors’ fixed windows. These windows perform so well in NFRC thermal tests that they have been used in 5-Star Green Building projects, Net Zero housing and numerous LEED certified projects. Some of the highlighted features of the casement includes compression bulb weather seals, multi-point locking, easy to crank roto system, heavy-duty stainless steel hinges, and hydraulically-locked sash corners keys with liquid welds.
Our attention to detail in design and workmanship has earned Gerkin a reputation for building quality windows that withstand the test of time and have earned Gerkin the Builders Choice Award.
NFRC | TEST RESULTS | |
U-Value w/LoÉ3/Argon | .48 |
Solar Heat Gain Coefficient | .20 |
Visible Transmittance | .42 |
Condensation Resistance | 39 |
U-Value Air Only* | .51 |
AAMA | TEST RESULTS | |
Test Window | 105" x 72" | |
Class | CW-PG40-C |
Air Infiltration | .01 cfm/sq. ft. |
Water | 9.00 psf |
Structural Wind Load | 60.0 psf |
U-Value w/LoÉ3/Argon | .49 |
Solar Heat Gain Coefficient | .20 |
Visible Transmittance | .42 |
Condensation Resistance | 38 |
Indoor/Outdoor Sound Transmission Class | 28 |
Sound Transmission Class(w/ 1/4 LAM x 1/8 A) | 36 |
U-Value Air Only* | .51 |
Test Window | 93" x 60" | |
Class | CW-PG60-C |
Air Infiltration | .01 cfm/sq. ft. |
Water | 9.0 psf |
Structural Wind Load | 90.0 psf |
Indoor/Outdoor Sound Transmission Class | 28 |
Sound Transmission Class(w/ 1/4 LAM x 1/8 A) | 36 |
Test Window | 69" x 48" | |
Class | CW-PG90-C |
Air Infiltration | .01 cfm/sq. ft. |
Water | 12.0 psf |
Structural Wind Load | 135.0 psf |
Indoor/Outdoor Sound Transmission Class | 28 |
Sound Transmission Class(w/ 1/4 LAM x 1/8 A) | 36 |
*U-Values for our windows with 1/8" 366 LoÉ3 glass, air only, 1/8" clear glass, no muntins or argon in the air space. Tested and Certified to AAMA/WDMA/CSA 101/I.S.2 A440-08 |