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- Wed Apr 21, 2021 3:46 pm
- Forum: Ask Our Pro's a Question
- Topic: Sunrise vs Great Lakes- Help
- Replies: 21
- Views: 8681
Re: Sunrise vs Great Lakes- Help
Homesealed, You mentioned that you like to see air infiltration under .03 and you also mentioned that sliders typically run leakier. Obviously, any amount of cold air a window leaks in is equivalent thermally to a poorer of U value window. That said, I was looking at some OKNA window specs and thei...