How to Prevent Ice Dams



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This Old House general contractor Tom Silva shows how to super-insulate an attic for ice dam prevention. (See below for a shopping list.)

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Full episode:

How to Install Fiberglass Insulation:

How to Insulate an Attic:

How to Clean Up Attic Mold:

Shopping List for How to Prevent Ice Dams:
– expanding-foam sealant
– closed-cell spray foam insulation

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