Adding Foam Board Between Trusses In Attic Space

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.

Adding foam board between trusses in attic space.

Pull down stair or ladder. Obstructions such as electrical wires will require cuts in the barrier. That s because it s easier for the contractor to spray than clean up existing insulation deal with any can lights or venting etc. I m concerned about ice dams forming along the eaves of my roof in wintertime.

If you re not do the attic floor. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. Batts between rafters in would require adding ventilation between the insulation roof deck. This is because the effects of thermal bridging are limited which also results in the elimination of melt lines on the roof surface in cold climates.

My attic is framed with rafters and a ridge board not with roof trusses. If you re using the attic for living space then you need to insulate the rafters. Parts of my attic are floored. Remove existing insulation from the area you are working on and set it to one side.

Hack n stack sealed foam board between the rafters would be better since it s at least an air impermeable insulation but even that would require a vent gap below the roof deck to meet code and you d still be under r38 on that 2x6 rafters unless you. Seal these carefully to make the barrier continuous. Attic hatch or door. Consumers are often told by spray foam contractors to do the rafters.

Cut foam boards to fit snugly between the trusses. I would like to use some of my attic space for storage. The reason trusses shouldn t hold the weight of flooring or heavy boxes is because they are typically made from relatively small boards 2x4 s in some cases and the bottom board is already carrying a significant roof load because of the design of the angled elements. Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.

Attics are a top pick when homeowners decide to gain some extra storage or add a guest room but not all attic flooring structures are up to the task of supporting the weight of a new living space. 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. Affix rigid foam insulation to the attic side of the hatch or door.