EXOSTKG™ 50MIL Granulated Peel & Stick Underlayment is a premium grade, self-adhering underlayment that employs peel-and-stick technology. This underlayment is a secondary barrier against water and moisture under shingled roofs, particularly in areas susceptible to ice dams.

• Approvals: Meets or exceeds performance testing of ASTM D1970 and ASTM E108 (Class A)
• Pending Approvals: Florida Building Code and Miami Dade County