Plaster Repair Material For Air Sealing Attic

Three coats of wet plaster are applied in layers to the lath.

Plaster repair material for air sealing attic.

I have an 1850 house upstate ny the ceiling right now is just lathe and plaster and the attic has no insulation. To reduce air flow a homeowner will first need to air seal. I ve heard that the plaster is actually porous enough that it needs to be sealed with plastic or something. Products shown as available are normally stocked but inventory levels cannot be guaranteed for screen reader problems with this website please call 1 800 430 3376 or text 38698 standard carrier rates apply to texts.

The opening around a furnace or water heater flue is a major source of warm air into the attic photo 5. What most people don t realize is that all winter long they are heating the space behind. Figure 5 the fiberglass roll is covered with spray foam to air seal the top of the wall. Fill the attic with additional insulation.

Skip air sealing and expect to pay big many people overlook the need to air seal because they look around their house and see walls and ceilings that do not have holes to the attic or outside. The scratch coat the brown coat and the finish coat. Press the flashing metal into a bead of latex caulk and staple it into place. Roll a piece of fiberglass batt and stuff it into place at the top of the wall where the top plate is missing.

Cover the roll of fiberglass batt with spray foam to air seal it in place.