Roof was insulated with 8 inches of 40 PSI insulation. R40 at 0 degrees Celsius. Insulation was then covered with EPDM rubber.
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Monthly Archives: July 2016
Roof Vapor Barrier Blues
Installing the vapor barrier for the roof was problematic. My first attempt using plastic failed. Condensation appeared overnight and after a week, a slimy scum arose. I couldn’t believe this building technique is usually recommended for Green Roofs. I switched to a more expensive paintable rubberized blue product – Blue like the Sky.
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