Overview
Your best
defense against winter
The WinterGuard™ Series of waterproofing shingle underlayments
are applied under roof shingles during new construction or
re-roofing to protect your home’s interior from winter leaks
caused by ice dams and wind-driven rain.
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.
New! WinterGuard™ HT
WinterGuard HT (high tack, high temperature) is specially
formulated to resist high roof temperatures under metal
roofs. Also for use with shingles and tile.
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.
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