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Spray Foam Insulation - Spray Foam Insulation-Arlington, VA

Spray Foam Insulation-Arlington, VA
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Closed cell spray foam is being used in this picture to air seal and provide a thermal barrier for this newly encapsulated crawl space.  Closed cell spray foam provides an instant air barrier which keep cold air out of the crawl in the winter, and hot/humid air out of the crawl in the summer.  Closed cell is also used below grade like this because it will not allow humidity or vapor to travel through it.