Installing Styrofoam In Attic

Roof attic insulation of foam baffles ventilate insulate cold hot air.

Installing styrofoam in attic.

Roof attic insulation of foam baffles ventilate insulate cold hot air youtube. 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. 2 snap a chalk line between the length measurements. 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.

A brief snippet of how and why i used rigid foam insulation for some areas of the tiny house. To create an airtight seal use foil tape. When installing foam insulation boards in the attic make sure you start from one corner and work your way around the room. Your board must leave at least inch gap between the board and the roof.

Work from the ridge toward the wall plates overlapping the. You first install a very large amount of non permeable foam insulation it the rafters above your head in region 5 r 20 of insulation in order to prevent condensation seal it with spray foam and then attach an ignition barrier such as rock wool or drywall beneath the foam. Nothing unusual about that. Install the barrier by stretching it across the rafters from one end of the attic to the other and stapling it to the rafter faces.

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.