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2015 MINNESOTA ENERGY CODES

As of February, Minnesota's energy code now requires the following values for insulation:

Wall insulation - Minimum of R-21 cavity insulation. No exterior continuous insulation is required in the new code.

Attic insulation - Minimum of R-49

Foundation and crawl space insulation - Minimum of R-15 (although R-10 is allowed on edges and under heated slabs)

Window and Door U Factors - 0.32 or better

Blower Door Tests - Every new home will need to pass a blower door test that allows no more than 3 air changes per hour at 50 Pascals
(WE do offer blower door testing by the way...)


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