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How do you install drywall over rigid foam?
The most common way to hang drywall over rigid foam insulation is to glue and screw it into place.
- Tape each seam with housewrap tape.
- Mark the wall in the corner where the wall meets the ceiling, to show where the ceiling joists run underneath the rigid foam insulation.
Can you attach drywall to foam insulation?
The big drawback, however, is rigid foam is highly combustible and emits toxic fumes while burning. Hanging drywall over top meets building code requirements, creating a fire-resistant surface that’s ready for finishing. With special adhesive, you can simply glue the drywall in place.
How do you cover rigid foam insulation?
There is no perfect material for covering and protecting exterior foam on foundations. Use metal or plastic reinforcing to strengthen the cement parging on foundation foam boards. The most common approach is to apply a stucco-like “parged” finish with a surface-bonding cement.
Does rigid foam insulation need to be covered?
A: Yes, but to comply with building codes, all foam plastics must be covered with a 15 minute thermal barrier. Gypsum board, ½” thick is a common covering.
Can you install rigid foam insulation on interior walls?
If a remodeler wants to reduce thermal bridging through studs, the exterior foam option is usually prohibitively expensive — especially if the siding is in good shape. So many remodelers ask, “Why can’t I put the rigid foam on the interior side of the wall?” The answer is, you can.
What tape sticks to styrofoam?
Weather mate Construction Tape from Dow is recommended to seal the joints and seams of Styrofoam weather mate housewraps and Styrofoam insulated sheathings. In these applications Weather mate Construction Tape enhances resistance to moisture and air infiltration.
Do I have to cover rigid foam insulation?
How do you hang drywall over rigid foam insulation?
The most common way to hang drywall over rigid foam insulation is to glue and screw it into place. 1 Tape each seam with housewrap tape. Stretch the tape from the top to the bottom, without gaps, and over any other holes in the rigid foam insulation.
Where is the best place to install rigid foam on a house?
Some remodelers install rigid foam on the interior side of exterior walls. While the best place to install rigid foam is usually on the exterior side of the wall, that approach often can’t be used on an existing house.
Can you put strapping over foam insulation?
If you do install strapping over the foam, keep in mind that while the air space created by the furring will add to the assembly’s R-value, it also can create air pathways into the walls or ceiling. Treat the foam rather than the drywall as the air barrier, sealing all edges, seams, and penetrations.
How do you attach drywall to a concrete block wall?
Make sure to keep the drywall off the ground about a half an inch! That way if there’s ever water on the ground it won’t soak directly into the drywall. Use 1-inch masonry nails to securely mount the drywall to the concrete block while the glue dries. A moisture-resistant drywall is always a good idea on a block wall.