How WinterGuard works
WinterGuard is a composite material of asphalt polymers, formed into a rolled sheet. The asphalt provides the waterproofing. The polymers make the asphalt elastic and sticky, all the way through the sheet. The result is an amazing ability to both stretch and cling. This means that WinterGuard doesn’t rip when stressed and seals around nails driven through it. It sticks to a clean roof deck like glue. And it won’t dry out during the warranted lifetime of an asphalt shingle system. The result is a waterproof barrier beneath your shingle system, which pooled water and wind-driven rain cannot penetrate.

Take the offensive with CertainTeed
WinterGuard is just part of the CertainTeed strategy in winning the battle against ice dams. We offer an integrated system of quality products– including roofing shingles, ridge vents, vented soffits and fiber glass insulation – that defend your home from the damaging effects of nature. When used together, these products create a roof that’s well insulated, properly ventilated and resistant to problems caused by sun, wind, rain, snow and ice.

| Easy to Install |

Roofers' Select™ High-Performance Underlayment