How Do You Insulate & Vapor A Basement Ceiling?
In many cases, there is no need to insulate a basement ceiling because the temperature difference between the basement and rooms above it is relatively small. It is more important and cost effective to insulate the walls and the floor. By the same token, no vapor barrier is actually needed because very little moisture will migrate from one level to the other. However, you can purchase fiberglass insulation with a paper backing that also serves as a vapor barrier. An insulated ceiling will help keep in the warmth if the basement has its own heat source. It will also help to muffle sound between the two levels. Determine the square feet of your ceiling by multiplying the length times the width. Purchase the correct amount of insulation in a thickness to fill the space between the joists: three or six inches. Add a bundle or two to be sure you have enough on hand for the job. Stuff the insulation (paper side up if backed) into the spaces between the joists. You will have to cut the batts
