TopShield is a brand of professional building products, primarily known for its advanced roofing underlayments that replace traditional felt paper, offering superior durability, water resistance, UV protection, and easier installation with features like anti-slip surfaces and self-adhesion for various roofing systems (shingle, metal, tile). Key products include the high-temp SBS Defender TU-HT for extreme heat, lightweight synthetic options like SecureGrip30 and TS20, and specialized boards like PB6 for existing systems, all designed to enhance roof performance and installer safety. Keywords: Siding Accessories, Roof Repair Materials, Hours: 24 read full review »