Roofing Underlayment
ESP Low-E Therma Sheet, an easy-to-install reflective insulation, offers an industry-leading thermal and moisture barrier. Therma Sheet has also earned ICC-ES certification — a critical designation that affirms that the product meets the code requirements of a stand-alone roofing underlayment. Previously, code required the installation of Therma Sheet over a layer of felt paper or other underlayment. Now, roofers can install high-performance Therma Sheet without any other underlayment, reducing labor and material costs.