Where winter temperatures are extreme opt for insulating the walls and sealing off the crawl space entirely.
Insulating the floor crawn space.
Floor insulation for moderate climes popular reads.
Insulating during crawl space encapsulation.
You can also insulate the floor of the crawl space and the sub floor of the crawl space if you live in a cold environment.
Fiberglass insulation batts or rolls are the most economical and easiest diy choice for insulating between the floor joist in a crawl space.
Sometimes the crawl space is insulated from the above space and left cool and sometimes they are heated or cooled as part of the home but in either case there should always be insulation separating your interior space from the outdoors or you will have a lot of energy loss which you will pay for.
An improper crawl space insulation will lead to the floor above the crawl space to be cold and uncomfortable to walk on barefoot or in socks during winters.
While this method does work in the very short term moisture eventually builds in the crawl space and grows on this highly porous surface.
Crawlspace seal by billsmith 03303 on flickr damp dangling insulation is a sure sign of shoddy or outdated installation.
Crawl space insulation as a part of overall home air sealing and insulation helps maintain your entire home s energy efficiency without insulation heat and cool air are easily lost through the floor.
Remember up to 50 of the crawl space air can transfer into the living space.
In those days common building practice was to insulate the floor above the crawl space and to leave the crawl space s wall vents open so any moisture buildup would vent to the outside a.
Symptoms that you need a new crawl space insulation.
In moderate or dry climates without the threat of sustained subfreezing temperatures insulation between floor joists makes sense.
Insulation also helps to preserve the air quality and reduce energy costs.
Crawl space insulation basics.
Insulation on the dirt floor may be useful but in tennessee we find this not to be so.