What Is SHGC in Window Film?
This guide focuses on what solar heat gain coefficient means for architectural glass. The exact product, glass, coverage, installation, and current requirements still control the final decision.
A useful answer starts with what solar heat gain coefficient means for architectural glass.
This guide focuses on what solar heat gain coefficient means for architectural glass. The exact product, glass, coverage, installation, and current requirements still control the final decision.
- Use SHGC for the tested glass system
- Consider orientation and existing coatings
- Do not convert SHGC directly into a promised energy bill result
SHGC describes solar heat passing through a window system
Solar heat gain coefficient is an architectural-glass measurement for the fraction of incident solar radiation that enters through the glass system. It is useful when comparing a building's glass and film, but it is not a simple automotive tint percentage.
- Use SHGC for the tested glass system
- Consider orientation and existing coatings
- Do not convert SHGC directly into a promised energy bill result
Use the actual glass instead of a stock assumption
A low-SHGC film may be relevant to a west-facing room, but the expected result still depends on glass construction, orientation, shading, room use, and installation conditions.
Common questions
- Does a lower SHGC guarantee lower cooling costs?
- No. Building orientation, HVAC, shading, glass, occupancy, and installation all affect energy use. SHGC is one comparison measure.
Related window tint resources
Call or text Tamiami Tint of Naples at (239) 710-5111 for the next step.