Rigid Foam And Batt Insulation In Basement

These boards offer better basement insulation than fiberglass.

Rigid foam and batt insulation in basement. Perhaps the most effective way to install basement insulation is to use both rigid foam insulation in conjunction with stud walls that also contain fiberglass batts. Now do i do the floors next with the same r igid boards plywood on top then my studded walls filled with pink insulation or do i put my studded walls after my rigid foam on the walls and then the floors with rigid foam. Rigid foam board is another common insulation option. The foam insulation panels are usually made of polyurethane polyisocyanurate and polystyrene.

From below grade to above grade inside and out halo is the rigid foam insulating system designed perfectly for specific applications including basement floors. Choosing the right thickness of exterior foam rigid foam must be thick enough to prevent condensation on the roof sheathing. To attach the insulation you can use screws with large washers a special adhesive made for adhering foam board insulation or for smaller pieces you can seal them in with caulk or spray foam. Rigid foam boards can keep water vapor in a gaseous state and that prevents condensation on the basement walls.

Rigid foam panels are also a good way to insulate on the inside of concrete basement walls. Foam board insulation is easy to cut with a circular saw with a masonry blade or scored with a utility knife and snapped like you would drywall. Rigid foam can be used as sheathing a continuous layer of insulation on wall exteriors attached before the installation of house wrap and siding. Insulate your basement part 3 in this episode justin fink explains the why and how of using foam insulation on masonry walls and demonstrates how to properly insulate the rim joist area with rigid foam and batt.

Use a premade kit for this type of project. I think your instincts are correct. Follow with a 2x4 frame wall and insulate it with batt insulation. Paul march 6 2015 at 12 41 pm.

I suppose adding insulation on the exposed wall can t hurt and won t be very expensive maybe a hundred dollars or so for the batt insulation. Depending on thickness and the type of foam you choose super high effective r values can be achieved. Attach the tongue and groove insulation boards to the concrete wall with adhesive. When you are looking for polystyrene eps insulation board think halo.

I have insulated my basement so far with closed cell rgid boards 1 5. Good luck with your basement renovation sounds like you have a great plan. You do not need additional insulation on top of the rigid foam board on the non exposed walls. Indoors rigid foam is the material of choice on walls where the insulation will be touching masonry mostly this means the exterior walls in basement build outs except for daylight facing walls such as.

I have a concern about insulating my basement.