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Ice dam
Roof assemblies - renovation

What causes ice dams and how to fix them

...ice damming problem, this is an indication that you have a thermal bridging problem. First, let's look at what causes ice dams. Thermal bridging: many older hom...

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Icicles are an indication of heat loss, which can cause damage to insu
Wall assemblies - renovation

Winter troubleshooting - are you ready for the cold?

...ice. This is particularly noticeable during periods of extreme cold, made worse by high indoor humidity and lower-quality windows. Solutions: Yo...

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cold climat sk
Windows and doors

Skylights: an asset or a liability?

...ice dams and consequently the dreaded leak. Ice damming will cause water to back up and possibly get past shingles and metal flashings. Skylights and energ...

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Choosing between renovating and rebuilding
Wall assemblies - renovation

Renovating or tearing down and starting over

...ice dams form in winter. Such designs will also lead to thermal bridging at the junction between rafters or trusses and the top plate of the wall. This can...

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