Stego® Wrap Class A Vapor Retarder is a durable, high-performance under-slab vapor retarder designed to help protect concrete slabs and flooring systems from moisture vapor transmission from the soil. Manufactured from a multilayer extrusion of high-grade, prime virgin polyolefin resins, Stego Wrap provides reliable moisture protection for commercial, industrial and residential concrete construction projects.
This 10-mil vapor retarder roll measures 14 feet wide by 210 feet long, providing 2,940 square feet of coverage per roll. Its low water vapor permeance and strong puncture resistance make it an effective choice for below-slab moisture protection in projects requiring compliance with ASTM E1745.
Stego Wrap Class A can also be incorporated into appropriately designed systems intended to control soil gases, including radon and methane. Proper detailing, seam sealing and installation are essential to achieving the intended performance.
Installation Recommendations
Install Stego Wrap in accordance with the current manufacturer's installation instructions, project specifications and applicable building requirements. Properly overlap and seal seams, penetrations, edges and terminations using compatible Stego accessories. Protect the membrane from damage during placement of reinforcement and concrete.
Review the manufacturer's technical data sheet and installation instructions to confirm substrate preparation, detailing, approved accessories and any project-specific requirements.