During Steve Saunders’ webinar on November 3rd, there was a question about windows that Steve did not answer: “Give me at least 3 different window manufacturers that comply with a 0.30 SHGC that do not use argon gas…” Here are some that we know of, but we are sure that there are more:
•       Andersen Windows
•       Atrium Windows
•       Pella Windows
All of these manufacturers have windows that are rated at a 0.30 or lower SHGC and do not require the use of argon gas according to the National Fenestration Rating Council.