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Northwest Partners brings you state of the art, thoroughly tested technologies to enhance building envelopes and EV charging systems. Let us show you how to incorporate our products to reduce resident turnover, reduce construction costs, and increase revenue.

Roofers love our new vapor-permeable roofing underlayment: SlopeShield Plus!

northwest partners llc vaproshield Aug 23, 2023

Reviews are in! Roofers love our new vapor-permeable roofing underlayment: SlopeShield Plus!

SlopeShield Plus is extremely tough and durable. Its rugged composition is perfect for enduring consistent traffic and, with built-in slip resistance, SlopeShield Plus encourages safe transit from fascia to peak for up to 180 days!

Not only will installers appreciate the durability and traction provided by SlopeShield Plus, but your building will appreciate it too!

Traditional asphaltic and butyl-based peel-and-stick roofing underlayments offer liquid-water holdout but lack drying capacity due to their non-permeable nature. These underlayments inherently trap moisture, reducing insulation performance and accelerating sheathing decay—potentially causing premature roof assembly failure.

SlopeShield’s high drying capacity and black coloration (which absorbs heat from the sun when exposed during construction) accelerates the drying process of the underlying materials. This combination helps to mitigate construction moisture which would otherwise be trapped by a non-permeable roofing underlayment.