Category Archives: Spray Foam

What is Polyurethane Foam ?

Article Reposted from  Nick Connor Polyurethane foam insulation is available in closed-cell and open-cell formulas. Polyurethane foam can be used as cavity wall insulation or as roof insulation. Thermal Engineering Polyurethane FoamPolyurethane foam (PUR) is a closed cell thermoset polymer. Polyurethane polymers are traditionally and most commonly formed by reacting a di- or poly-isocyanate with a polyol. Polyurethane [...]

Advantages of Commercial Spray Foam

Building Science  Corporation GM-2103: Commercial Spray Foam Guide - Joseph Lstiburek Spray foam insulation has significant advantages over other insulation systems due to the spray foam ability to provide continuity of the water control, air control, vapor control and thermal control layers necessary for environmental separation.  Using spray foam results in low exterior air leakage [...]