Ask Mr. Crawlspace

It is best to leave existing foundation vents in place and seal them with a foam insulation board. The insulation board should

No, unless they are required by code in your area.  For a closed crawl space in areas that are not required to ha

Sealing around electrical and plumbing penetrations prevents air from moving into the wall or living space from the crawl space.Use a caulki

Yes, closing penetrations between the crawl space and living space prevents air contaminants in the crawl space from entering the living spa

Most building codes allow for several options such as insulating the floor joist system or insulating the foundation walls. In

No, not unless it’s required by code. The best method of insulating the crawl space is to use a closed crawl space system with insulation on

Stringing and falling insulation means the insulation has been wet at one time. Wet insulation offers no insulating values, so

Mold and mildew can be easily removed with appropriate cleaners. Some cleaners just clean the mold stains off the wood but don

Get a professional plumber to correct any plumbing leaks before an enclosed crawl space is installed. But in addition to fixing leaks, make

Correct the problem from the exterior if you can. Often you have to redirect the flow of water by installing gutters, improving grade around

If you have a water problem that’s coming from the outside of your crawl space, the problem needs to be fixed before you can have a closed c

Closing your crawl space has many benefits, such as reducing the humidity in your crawl space. That prevents mold growth and also reduces in