If the house is a new construction or you are adding an addition it is easily done before the subfloor goes down.
Installing floor insulation do it yourself.
Installing floor insulation yourself.
Department of energy recommends r 11 3 insulation under floors in warm climates and an r 25 6 to 8 in cold climates.
Fiberglass insulation batts or rolls are the most economical and easiest diy choice for insulating between the floor joist in a crawl space.
Plan to pull up the flooring and layer new insulation on top of the old.
A roll of the fibre 7m long x 1m wide will cost about 15 and the insulating boards for concrete floors are.
See do it yourself spray foam insulation and how to caulk.
These do it yourself instructions cover installation of batts and blankets loose fill or poured in materials rigid boards and reflective insulations.
But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates.
With the floor gone you ll have to find a spot elsewhere for stashing those off season clothes and that holiday decor.
Before beginning the work read and observe the following precautions.
It is fairly simple to do if you are a diy enthusiast and all the materials are available from your local diy store.
Not all home insulation work has to be carried out by a professional.
If you live in an older home then the process is a little trickier but still easy to do.
Wear clothing adequate to protect against skin contact and irritation.