--- title: CertainTeed WinterGuard® Underlayment | LS Building Products description: CertainTeed WinterGuard® is a waterproofing shingle underlayment that provides superior protection against water infiltration in vulnerable roof areas. --- [![LS Building Products](https://ls-usa.com/hs-fs/hubfs/Logo%20(13).png?width=98&height=67&name=Logo%20(13).png) ](https://ls-usa.com/) [ Get A Quote ](https://ls-usa.com/contact) ![Open](https://ls-usa.com/hs-fs/hubfs/Shape%201%20(4).png?width=31&height=26&name=Shape%201%20(4).png) ![close](https://ls-usa.com/hs-fs/hubfs/close-circle-fill.png?width=28&height=28&name=close-circle-fill.png) [ Get A Quote ](https://ls-usa.com/contact) ![LS Building Products ](https://22146047.fs1.hubspotusercontent-na1.net/hubfs/22146047/Roofing%20Hero%20Background.jpg) ![LS Building Products ](https://22146047.fs1.hubspotusercontent-na1.net/hubfs/22146047/Roofing%20Hero%20Background.jpg) # Roofing Materials ❮ ❯ ![Product Image](https://ls-usa.com/hubfs/WinterGuard_RollingOut_5570.webp) ![Product Image](https://ls-usa.com/hubfs/WinterGuard_Peeling_5573.webp) ## CertainTeed WinterGuard® CertainTeed WinterGuard® is a premium waterproofing shingle underlayment designed to provide superior protection against water infiltration in vulnerable roof areas. A key component of the CertainTeed Integrity Roof System®, WinterGuard is made from a composite of asphalt polymers, offering exceptional elasticity and sealing properties to prevent leaks. Color: Sand ![Sand](https://ls-usa.com/hubfs/Sand.jpg) ![Granular](https://ls-usa.com/hubfs/Granular.jpg) [ Request A Quote ](https://ls-usa.com/contact) ### [Overview](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#overview) ### [Highlights](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#highlights) ### [Faq](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#faq) Overview ## The Expert's Choice Advanced self-adhering underlayment engineered for optimal roofing protection. - **Sizes:** Available in roll format for easy installation - **Material:** Composite of asphalt polymers for elasticity and durability - **Sealing Capability:** Forms a tight seal around nails to prevent water infiltration - **Surface Options:** Granular for enhanced traction, Sand for smooth application - **Integrity Roof System®:** Works in tandem with CertainTeed shingles and accessories for maximum performance [ Get A Quote ](https://ls-usa.com/contact) #### ** Superior Waterproofing Protection** WinterGuard® is vapor-tight, preventing moisture from penetrating the roof's most vulnerable areas. Its polymer-modified asphalt composition enhances elasticity, ensuring a long-lasting waterproof barrier. #### ** Nail Sealing Technology** The underlayment is engineered to stretch and seal around nails, providing a secure and watertight installation that helps prevent leaks caused by fastener penetration. #### ** High-Traction Surface Options** WinterGuard® is available in Granular and Sand finishes. Both are designed to improve traction during installation and reduce slip hazards for roofing professionals. #### ** Part of a Comprehensive Roofing System** As a component of the CertainTeed Integrity Roof System®, WinterGuard® is designed to work seamlessly with CertainTeed shingles and accessories. Highlights ## Why choose Winterguard #### ** Enhanced Roof Protection** WinterGuard® protects against ice dams and wind-driven rain, safeguarding the home’s structure from costly water damage. #### ** Easy and Secure Installation** The self-adhering technology allows for a straightforward application, reducing labor time and ensuring a secure fit. #### ** Superior Durability** Made from a resilient asphalt-polymer composite, WinterGuard® is designed to withstand harsh weather conditions, from heavy snow to extreme heat. #### ** Versatile Application** Suitable for various roof styles and slopes, WinterGuard® provides adaptable protection in different roofing environments. ![underlayments-winterguard-ctr-1](https://ls-usa.com/hubfs/underlayments-winterguard-ctr-1.jpg "underlayments-winterguard-ctr-1") ## Frequently Asked Questions ##### [ What is the purpose of WinterGuard®? ](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#collapse1-widget_1706579054302) WinterGuard® is designed to prevent water penetration in vulnerable roof areas, such as valleys, eaves, and around penetrations like chimneys and vents. ##### [ What makes WinterGuard® different from standard underlayment? ](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#collapse2-widget_1706579054302) Unlike traditional underlayment, WinterGuard® is self-adhering and features an asphalt-polymer composition that seals around nails, offering superior waterproofing. ##### [ Can WinterGuard® be used on all roofing types? ](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#collapse3-widget_1706579054302) Yes, WinterGuard® is suitable for various roof slopes and styles, providing enhanced protection in both residential and commercial applications. ##### [ How does WinterGuard® help prevent damage from ice dams? ](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#collapse4-widget_1706579054302) By creating a waterproof barrier, WinterGuard® blocks melting ice from seeping under shingles, reducing the risk of structural damage caused by ice dams. ##### [ Is WinterGuard® easy to install? ](https://ls-usa.com/products/roofing/asphalt-shingles/certainteed-winterguard-underlayment#collapse5-widget_1706579054302) Yes, the self-adhering nature of WinterGuard® simplifies installation, allowing for faster application and a secure, long-lasting fit. 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