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What are the prescriptive requirements of the energy code?

April 26, 2017code energy prescriptive requirements

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What are the prescriptive requirements of the energy code?

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Walls R13 Roof/ceiling R30 Floors over unconditioned spaces R21 Slab on grade floors Unheated slabs Heated slabs R5 R10 Crawl space walls R5 Finished lower level walls R5 Exposed basement walls Greater than 7% of gross exterior wall area (GWA) R5 Fenestrations/openings Up to & including 15% GWA 15% to 20% GWA greater than 20% GWA R1.9 R2.5 Refer to the Rules