Spray a versatile insulation. It’s adhesion capabilities make it an optimal insulation choice for a variety of substrates. Spray foam is often applied directly onto masonry block walls and poured concrete walls. It can easily be applied to the underside of corrugated steel roof decks and even be used on the topside of a roof slab serving both as a drainage plain and insulation. It can be used as a foundation insulation, exterior wall insulation, under-slab insulation, and as part of a roofing system. Spray foam lends itself equally to commercial renovations and new constructions.