Molly has given good advice.
How to insulate a dirt floor basement.
Your best and first heat keeping are spent in insulating the attic and in sealing all the cracks that allow cold drafts into your house.
Overlap the bottom of the walls with two inches of the sheet edges raised upward along the wall s surface.
The result of that is an unending source of humidity as moisture in the ground evaporates into the air and can condense on cold walls and joists where mold can establish itself.
We have an old house with brick foundation and dirt basement.
Lay the sheets in rows across the dirt floor.
Fixing a dirt floor crawlspace.
Part of the house sits on cement slab but the rooms over the dirt basement have very cold floors.
Some people say we can get foam insulation sprayed in which will harden on the dirt floor.
We close down the cottage for the winter and drain the water for the season we would love to insulate and try to make it a 4 season cottage.
Only seal and insulate your basement in combination with concreting the basement floor to seal out moisture that rises from the dirt.
The sill plate is the first piece of framing lumber and it runs on top of the crawl space wall.
Cover the dirt floor with a layer of 10 mil plastic sheeting to serve as a vapor barrier which will keep moisture from seeping through the dirt and onto your wood floor.
We will be tearing out carpeting in those rooms and want to know how we can insulate those floors before putting down linoleum and laminate flooring.
Installing roll insulation in ceiling of basement which is under floors of living space my basement is heated but a smaller amount than up in living space usually 66 68 upstairs and 58 60 at the same time in basement my question is about the kraft paper facing i think it should face the basement because of any moisture in basement.
If vents are not present in your crawl space insulate the walls instead of the joist bays.
All too often a crawlspace will have nothing but a dirt floor and probably some un insulated walls.