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Climate Zone Ceiling R-Value Wood Frame Wall R-Value Mass Wall R-Value Floor R-Value Basement Wall R-Value Crawl Space Wall R-Value
1 30 13 3 13 0 0
Climate Zone Ceiling R-Value Wood Frame Wall R-Value Mass Wall R-Value Floor R-Value Basement Wall R-Value Crawl Space Wall R-Value
2 30 13 4 13 0 0
Climate Zone Ceiling R-Value Wood Frame Wall R-Value Mass Wall R-Value Floor R-Value Basement Wall R-Value Crawl Space Wall R-Value
3 30 13 5 19 0 5/13
Climate Zone Ceiling R-Value Wood Frame Wall R-Value Mass Wall R-Value Floor R-Value Basement Wall R-Value Crawl Space Wall R-Value
4, except marine 38 13 5 19 10/13 10/13
Climate Zone Ceiling R-Value Wood Frame Wall R-Value Mass Wall R-Value Floor R-Value Basement Wall R-Value Crawl Space Wall R-Value
5 and marine 4 38 19 or 13 + 5 13 30 10/13 10/13
Climate Zone Ceiling R-Value Wood Frame Wall R-Value Mass Wall R-Value Floor R-Value Basement Wall R-Value Crawl Space Wall R-Value
6 49 19 or 13 + 5 15 30 10/13 10/13
Climate Zone Ceiling R-Value Wood Frame Wall R-Value Mass Wall R-Value Floor R-Value Basement Wall R-Value Crawl Space Wall R-Value
7 and 8 49 21 19 30 10/13 10/13