Crawl Space Encapsulation

Friday, November 6th, 2020 by Ashley Walther

Challenge

This Triangle, VA homeowner had a bump-out added to the back of his home years ago. The bump-out was built over a crawl space and the kitchen is above this crawl space. The kitchen floors have always been cold and the cabinets expelled cold air in the winter when opened.

Solution

Our team was called in to solve the problem. The existing Batt insulation installed on the floor was not airtight and there were gaps in between each batt. Thus, cold air touched the floor above and made it cold and uncomfortable in the kitchen above. We "encapsulated" the crawl space and turned it into a conditioned space. Now the floors in the kitchen can be comfortably walked on with bare feet in the winter!

The crawl space opening was not airtight or insulated and allowed cold air under the kitchen floors above.

Encapsulated crawl spaces will maintain a temperature of only about 10 degrees cooler than the rooms above.

Another view before we removed the Batt insulation above. This batt is no longer needed since the crawl space and the room above are both "inside" the house now.

Putting the final touches on the crawl space door. Practically air tight, still usable, and insulated with SilverGlo foam board on the back!

Crawl Space Encapsulation

Challenge

Solution

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