What is the R-Value of PolySteel?
Walls made of PolySteel perform, on an average, like a stick frame wall constructed for R-30 insulation. But that’s not the whole story. The effective R-Value performance of PolySteel consists of three factors: (1) the R-Value of the expanded polystyrene, (2) the thermal stability of massive concrete walls reduces the temperature fluctuations, and, consequently, the heat load requirements, so common to stick-frame buildings. (3) air leakage (infiltration) can account for 20% to 40% of the heat load requirements of a stick-framed building. PolySteel reduces this air infiltration by 75%! As a result, with the combined performance of the R-Value of the expanded polystyrene, the stabilizing effects of the thermal mass of the concrete, and the reduced air infiltration, PolySteel walls actually perform as high as R-50, or more, in some areas of the country. We even guarantee, in writing, that a homeowner will save at least 33% of their energy costs over 2 X 6 construction with R-19 insulatio
