How To Improve Crawlspace Insulation
Dean S asks,
I have R-19 batt insulation between the floor joists in my crawlspace. Is there anything else I can do, like installing rigid foam over tha batts, to keep out the cold?
It is usually better to spend your money insulating the crawlspace walls, sills, & rim joist. You can use either rigid foam or spray-in foam. This approach quickly & effectively insulates & air-seals the entire crawlspace. It is also important to have a vapor retarder installed on the ground of the crawlspace & remember to open the foundation vents in the warmer months & close them again when in colder weather. There is also the option of going with an encapsulated crawlspace system, but we’ll save that for another time.
