Install Foam Board Insulation In Attic

There s two ways you can go about with foam board insulation.

Install foam board insulation in attic.

Remove the old insulation boards carefully without causing any damage to the walls. Alternate fasteners may be used with the type and length as recommended by their manufacturer for securing foam plastic insulating sheathing. Firstly you can apply it directly onto the house s concrete walls with the help of a construction adhesive that will hold it in place. Remove any existing pieces of insulation that might have been covering the attic walls until now.

Install foam boards with the foil side facing you. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends. Nothing unusual about that. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents.

Measure the length and width between two rafters in your attic and transfer the measurements to a 4 ft by 8 ft of rigid foam insulation board. Fasteners should be long enough to penetrate in to the rafter a minimum of inch. Your board must leave at least inch gap between the board and the roof. Fasten foam insulation boards to the interior of the rafters using screws or nails with 1 inch minimum washers or caps.

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. Energy saver eliminates the need to remove attic flooring and lose valuable attic storage space in order to make major energy saving upgrades in the attic. Earlier this year i got a question about a home that had spray foam insulation in the attic. The superattic system from dr.

To create an airtight seal use foil tape. Step 2 install insulation boards. Affix rigid foam insulation to the attic side of the hatch or door. The fit should be firm but not so firm that the edges of the foam begin to tear.

Attic hatch or door. Secondly and this is the best way you can install a drywall to frame the wall before applying foam board insulation. 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. Foam insulation boards can be attached to concrete walls as well and in such a case care should be taken not to chip the cement.