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Spray Foam Insulation provides structural reinforcement to the homes you build in two important ways:
Temperature and moisture changes of wood are one of the biggest contributors to building movement. By effectively blocking air leakage, Spray Foam Insulation helps keep temperature and moisture levels constant, minimizing expansion and contraction of wood frame walls.
In two independent tests conducted by the National Association of Home Builders´ (NAHB) research center, Spray Foam Insulation between wood and steel stud wall panels increased rack and shear by a factor of two to three when sprayed onto gypsum wallboard or vinyl siding. When sprayed onto oriented strand board (OSB), Spray Foam Insulation increased racking strength by approximately 25 percent (see Figures 1 and 2). The NA HB concluded that during a design racking event like a hurricane, there would be less permanent deformation of wall elements and possibly less damage to a structure braced with Spray Foam-filled walls.
