Insulation Can Act as Standalone Underlayment
Environmentally Safe Products Inc.’s Therma Sheet roofing underlayment has been certified by the International Code Council Evaluation Service. The designation means Therma Sheet meets the code requirements of a standalone roofing underlayment for the building industry. Previously, code required roofers to install Therma Sheet over a layer of felt paper or another underlayment. Therma Sheet insulation is constructed of 99 percent pure polished aluminum facings, heat laminated to a closed-cell polyethylene foam core. This patented process makes Therma Sheet a thermal and moisture barrier under metal roofing, stone-coated steel, concrete, clay tile and more.