Crawl spaces may be insulated in two main ways. The ceiling of the crawl space may be insulated for a vented crawl space, which minimizes heating and cooling costs. Or the walls of the crawl space may be insulated for an unvented crawl space, in which case, the space will get some conditioning from the rest of the house. A crawlspace must be kept dry and conditioned to control temperature and humidity and sealed tight to remain pest free. Either way, Attic Proof Inc. will make sure the insulation replacement process is seamless and you will notice the difference it makes.