If not, the drywall taping and painting could always be completed later.Īlso, if you use adequate thickness of high-density extruded polystyrene sheathing and tape or glue the seams, you may not need a typical polyethylene air/vapour barrier on the interior. I'm not sure if that will be acceptable to the municipal officials in your area, so check with them to ensure it will meet their criteria.
#Ontario building code house wrap install
Other wall coverings may be available that will meet the criteria for fire protection but they will likely be more costly and sometimes more difficult to install.īecause you do not have the desire to fully finish the basement, you may be able to install the drywall directly over the rigid insulation and air/vapour barrier without taping or painting it. These fumes can overcome occupants of the home during a fire, even before the fire itself.ĭrywall, either Standard or Fireguard, is normally used for this purpose because of its low cost and fire-resistant qualities. Because this type of insulation is made from plastic, it is combustible and may give off highly toxic fumes when burning. This wall covering must have a minimum fire rating to protect the insulation from quick combustion during a fire. Rigid foam insulation, whether it is expanded or extruded polystyrene, does have to be covered if it is installed in the interior of a building. The answer to both of your main questions is yes and I will offer suggestions for proper methods for insulation in either case. Both of these situations pose challenges that may be tricky and not often addressed in typical literature designed for the do-it-yourselfer. We only want to insulate it for warmth.ĪNSWER: While your excellent questions are not identical, they both address the issue of insulating walls from the interior using rigid foam insulation.
We would like to insulate our basement with Styrofoam insulation and are wondering if it has to be covered with drywall or some other material? Is there something else you would suggest we insulate it with? We want to make sure we are abiding by fire regulations. Can we attach foam insulation and new drywall on top of the existing interior walls? If so, can this be done with glue that won't break up the foam and that is safe for interior use? We installed a new picture window last fall and allowed for the increase in wall thickness. The walls currently have fibreglass insulation, a vapour barrier and drywall. QUESTION: We want to add insulation to the north walls in our home.
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