How to use the Window Solar Heat Gain (SHGC) Calculator
The Formula
Lower SHGC blocks more solar gain—critical on west facades. Model scales with glass area and sunny hours.
Practical Example
Q: Low-E vs tint? A: Compare SHGC and VT ratings on NFRC labels.
About Window Solar Heat Gain (SHGC) Calculator
SHGC effect
Lower SHGC blocks more solar gain—critical on west facades. Model scales with glass area and sunny hours.
Frequently asked questions
Q: Low-E vs tint? A: Compare SHGC and VT ratings on NFRC labels.