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XPS Siding Underlayment

GreenGuard is the nation’s leading brand of siding underlayments. Made of extruded polystyrene (XPS), our underlayments provide superior moisture resistance and are perforated to allow moisture vapor to escape. They do not absorb water, are not a food source for mold, and are not subject to moisture-related damage and deterioration. They also retain their insulating properties over time. All of our underlayments are designed to lay flat, giving siding a smooth, even finish. Plus they are lightweight and durable, so they cut easily without crumbling.


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Residential Applications

Residential Products

Give your homes energy-efficient, water managed walls with GreenGuard.

Our business is to help you build the most protected and durable walls possible. That’s why our residential line is filled with products that help block water and air infiltration and add insulating power. Installing continuous insulation on the wall exterior using our extruded polystyrene (XPS) sheathings and siding underlayments helps eliminate thermal breaks that result from using wood framing and sheathing. And our building wraps block air infiltration and serve as an essential component of water managed walls. When you use GreenGuard products, the result is better energy efficiency and durability for every home you build.

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