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As compared to a 1" section of foam insulation in a typical ice chest, that will hold ice for 5 days at 80 degrees F, the SIPS wall and roof sections are 3 1/2" to 12 1/2" of insulation foam.
Consider this; a coffee cup, 1/16" of foam insulates 210 degree F coffee so your fingers are not burned.
Oak Ridge National Laboratories performed an extensive, closely monitored test, in a controlled environment, and concluded that SIPS are 15 times less air infiltration than conventional construction.
The testing compared a room built with 4 1/2" SIP walls and ceiling, window, door, wire, chases and electrical outlets, to an otherwise identical room built from 2x6 walls, OSB sheeting, fiberglass insulation and drywall.
The stated insulation for the 6" wall is R-19 and for the 4 1/2" SIP walls is R-15/ Even though the conventional wall was a 25% higher "R" value, the SIP wall performed 88% better than the conventional wall.
The results in Energy Savings are dramatic, when comparing a SIP
built home to a conventional 2x4 built home, in fact your energy bill can be as much as 50% less and your A/C system size is typically sized 60% less than conventional homes.
SIP homes qualify under the DOE's Energy Star Program, resulting in savings in your energy bills throughout the life of the structure.
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