If your slab is heated it s a good idea to increase the r value of the vertical and the horizontal insulation to at least r 20.
Dow under slab insulation.
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Below grade under slab with foamular xps insulation.
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Specify this solution zip 4 49 mb.
Insulating properly below grade can help prevent total structure heat loss and reduce heating and cooling bills by 10 20.
Dupont styrofoam brand extruded polystyrene foam insulation is an ideal solution for under slab installations offering the following advantages.
4 10 2012 3 climate zones e301 1 6 5 8 4 slab r value table 402 1 1 insulation and fenestration requirements by component e402 1 1 climatezone slab r valued 4 10 2 ft 5 10 2 ft 6 10 4 ft 9.
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Lack of foundation insulation on below grade and under slab projects can account for up to 25 of a structure s total heat loss.
Slabs that include embedded hydronic tubing for radiant heat always need a continuous layer of horizontal insulation under the entire slab.
Thermosetting resins from dow can be used as an alternative to traditional formaldehyde based resins for binding mineral fibers in the production of insulation blanket products that go into building insulation systems and specialty insulation.
A sturdy subfloor thermal insulation that resists moisture and freeze thaw cycles.
See our step by step slab on grade construction videos in the ecohome green home building guide pages.
Below grade under slab system with foamular extruded polystyrene rigid board insulation and radiant heating.
Reduces energy loss between ground and concrete slab.
Below grade insulation is important both for the longevity of your structures and for the earth.
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Reduces potential for condensation and moisture damage.
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Freezermate xps insulation is a rigid styrofoam brand solution designed for low temperature application while delivering high r values.
Specify this solution zip 4 3 mb.