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Cementitious Foam Insulation Material

Cementitious insulation material is a cement-based foam used as sprayed-foam or foamed-in-placed insulation.

One type of cementitious, spray-foam insulation is known as Air-Krete^™. It contains magnesium silicate and has an R-value of about 3.9 per inch. With an initial consistency similar to shaving cream, Air-Krete^™ is pumped into closed cavities. After curing, it's similar to a thick pudding.

Cementitious foam costs about as much as polyurethane foam. It's also nontoxic and nonflammable. Cementitious foam is made from minerals (like magnesium oxide) extracted from seawater.

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