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Under Slab

When Spray Foam is installed under the slab during a new build, it helps eliminate the heat sink effect of concrete slabs making the environment much more comfortable. In cold climates, insulating under a concrete floor is just common sense. But it's fair to ask why SPF should be used instead of rigid foam board. Perhaps the greatest advantage SPF offers is that it provides a monolithic layer of insulation, with no seams or other imperfections in the thermal barrier. Because it bonds aggressively and completely to just about anything it contacts, the foam creates a superior vapor barrier around plumbing and other slab penetrations