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How to Seal Holes and Penetrations in Your Home- DIY Weatherization Solutions from Green Dream Group

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Uploaded by on Jan 9, 2009

A quick tutorial on sealing holes and penetrations around pipes and ducts with expanding spray foam.

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Howto & Style

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  • 2 things:

    - you don't need to wait long for it to dry- 20-30 min is plenty, unless you have a very thick chunk of foam. Spraying water on it before or after will make the foam cure faster.

    - You can apply the foam much more easily and neatly with a reusable foam gun. They start around $50, but if you have a lot of holes to seal, it's well worth it.

  • Spray a little water before applying the expanding foam as the foam expands due to humidity

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