What is the Solar Heat Gain Coefficient of impact-resistant windows?
The SHGC refers to the amount of heat finding its way into your house. Lower numbers mean less heat permeating your indoor spaces; while a higher number is a clear indication that your interior spaces get warmer easily.
Do you wonder why your home gets warmer or colder when your HVAC systems are off? Well, a certain amount of heat seeps into your interior through your windows and other openings, such as doors. This is where the Solar Heat Gain Coefficient (SHGC) comes into the picture.
Impact-resistant windows with clear glass have a SHGC of 0.72, while gray and bronze glass feature a 0.56 and 0.55 SHGC value, respectively. That is not all: you can lower these values further to a possible 0.30 by using a LowE glass, such as the SolarBan 60, LowE 366, or the SolarBan 70XL. These figures mean that impact glass windows are the most effective when it comes to preventing outside heat from seeping into your house.