Repairing Windows and Energy Efficiency
I’m salvaging an older Four Seasons tinted curved glass sunroom for use on my “Pretty Good House” renovation project. I will be using the glass for a partial South Wall to enclose a back porch behind the garage. The porch will house a 7×7 hot tub. The glass will sit on an insulated knee wall. The glass coverage in the room will be less than 20% of the total wall area.
I am in Zone 5, Central NY, and plan to keep the room relatively cool thru the winter, using the hot tub as the primary heat source and warming up the air with an electric heater as needed when I use the tub.
My question regards my used glass. Some of the seals on the curved glass have failed and I have condensation in those panes. I’ve read about cosmetically repairing the windows by drilling a small interior hole in the glass and allowing them to vent to the interior of the room. Given how I plan to use the room, will this type of repair cost me enough in lost efficiency to justify replacing the failed panes with new glass, or will it be cheaper over the life cycle to pay extra to heat the space?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part