However even with xps rigid foam board insulation for basement walls you may still have a moisture problem because any polystyrene under 1 1 2 thickness is not considered impermeable enough to be a vapor barrier.
Basement concrete wall insulation wrap.
You can use basement wall insulation in new construction or to retrofit existing homes.
What would you suggest to do.
The 4 feet above grade is framed out in 2 x 6 insulated in r22 fiberglass and covered in vapor barrier and sits on the foundation wall.
The stud wall is not yet insulated or drywalled it was this way when we purchased the home.
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Basement concrete insulation wrap.
Closed cell spray foam is perfect for locking out the water vapor that inherintely wants to migrate from your damp basement walls to your finished basement rooms.
My concrete basement walls already have a 2x4 framed wall.
We obviously wouldn t be able to add 2 rigid insulation directly against the concrete now.
We are looking to finish the basement this year.
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The 4 feet below grade consists of the poured concrete foundation and is wrapped in r20 blanket insulation from the top of the foundation wall to about 6 inches from the floor.
It s usually installed on all of the basement walls from floor to ceiling.
Spray foam is probably the best possible insulation material for basements and damp areas.
This is the blanket wrap they used.
It s sold in blankets 48 inches which give you the flexibility to apply the insulation horizontally in two rows across the top and bottom half of a basement wall or vertically to cover a full wall.
It generally has a white plastic wrap cover that holds back a thin layer of fiberglass insulation.