One way to apply do-it-yourself or DIY insulation in a crawl space is to insulate floor joists, which involves laying the insulation between the joists of the crawl space's ceiling. This method of insulation is relatively cost-effective, and it may take 1 to 2 days to accomplish this task.
A well-insulated crawl space helps retain heat or cold in the home, which eventually helps cut down on heating and cooling costs. By contrast, when the crawl space is insulated poorly, the crawl space develops mold and mildew as a result of dampness.
To insulate floor joists, start by gathering a putty knife, a staple gun and a sufficient amount of insulation for the joists. Choose a suitable kind of insulation, possibly a rolled-up insulation, whose thickness ranges from 5.5 to 9.5 inches. The thickness of the insulation determines the quantity of heat that the insulation can retain.
After obtaining all the necessary tools and a suitable kind of insulation, unroll the insulation, and use a putty knife to cut off a piece of insulation that fits the joist size. Set the piece between the joists, and attach it in place with a staple gun. Finally, repeat the process for the remaining joists.