How To Attach Batt Insulation To Concrete Wall

This drywall is required by most building codes to.

How to attach batt insulation to concrete wall.

Use concrete adhesive to secure rigid foam to the wall as needed if friction isn t sufficient. Cut batts slightly long cut batts to length by setting the top of the batt into the space and cutting against the bottom plate with a sharp utility knife. Interior installation using the rigid board batt or spray on methods is the least expensive method. Leave an extra 1 2 in.

Just be sure to use unfaced batts no kraft paper covering. Rigid foam can be adhered to a poured concrete or concrete block wall with foam compatible adhesive or with special plastic fasteners such as hilti idps or rodenhouse plasti grip pmfs. See how to insulate a basement wall and tyvek or tar paper question. Measure the height of the wall and cut insulation batts to fit snugly between the top and bottom plates horizontal members to which studs are attached.

If you seal and tape all seams with ac aluminum duct tape this will also form a vapor barrier. We re using unfaced batts that are sized to friction fit into standard stud spaces either 16 in. The word insulation typically brings to mind lofty batts of spun fiberglass rigid foam panels and blown in cellulose. The best way to insulate the interior side of a basement wall is with foam insulation that is adhered to or sprayed directly on the concrete.

Three basic types of thermal insulation are available rigid board batt or blanket and spray on. Any of the following insulation materials are acceptable for this purpose. If you wish to insulate without an airspace you can apply rigid foam closed cell directly to the concrete. Closed cell spray polyurethane foam or either xps eps or polyisocyanurate rigid foam.

Attach the blanket to the wall using furring strips or a hilti type gun to drive fasteners into the concrete or cinder blocks. Usuallly fiberglass is not recommended in basements because it is so air permeable but paired with xps foam sheet at wall would be a hybrid solution. Fit adjacent blankets tightly together. Add a layer of 1 2 inch drywall over any rigid foam insulation.

Of length for a tighter fit. Cut lengths of insulation a few inches longer than the height of the walls. R max is a good product for this and it also has a radaint barrier to reflect heat back into the room. If you are using high density r 15 unfaced batts or special unfaced insulation for masonry walls press it into place left and friction will hold it.