Roof assemblies - renovation

Ice dam
Roof assemblies - renovation

What causes ice dams and how to fix them

Ice dams form at the bottom of roofs, letting water penetrate and cause damage to the interior of walls and roofs.

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Frost in attic
Roof assemblies - renovation

Why is there frost in my attic?

A roof leak isn't really a roof leak if it’s leaking on a sunny day. It's more likely an accumulation of frost finally melting.

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