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Your cart is empty.GuardianLiner High Strength: Premium Crawl Space Vapor Barrier Introducing the GuardianLiner High Strength, a top-tier vapor barrier crafted with care in the USA. This high-quality barrier features a bright white surface for a clean, luminous appearance and a tan back. With an actual thickness of 12 Mil, it covers an area of 12' x 50’, providing 600 square feet of effective protection. HS is reinforced with cross woven polyethylene ribbons. Constructed from virgin polyethylene resin, the GuardianLiner HS combines functionality with aesthetics. The pure white top layer not only brightens up your crawl space but also reflects light efficiently, reducing the need for additional lighting during inspections. For optimal installation, measure your crawl space first and cut the GuardianLiner in your yard or driveway. Smaller sections will be easier to maneuver and install. Ensure that the vapor barrier overlaps 8-10” on the floor and at least 4” on the walls. Use a high-quality vapor barrier seam tape, like WaterProof Seam Tape, to seal seams and maintain moisture control. Established in 2007, we are a family-owned business dedicated to producing high-quality, American-made products. Each GuardianLiner comes with a unique serial number for traceability from manufacturing to testing. Our vapor barriers are rigorously tested for VOCs and off-gassing by an independent lab, ensuring superior performance, durability, and quality.
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