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A termite shield and a sill gasket are installed between the sill plate and the foundation on a raised slab foundation
Air seal above-grade sill plates adjacent to conditioned space to minimize air leakage.
Foam gasket installed beneath sill plate
Install a sill gasket between the sill plate and the foundation wall
Right – Foam gasket installed between sill plate and foundation
Right – Installed foamed exterior sheathing intersection as well as the sill plate to sub-floor connection
Right – Sill plate was sprayed with foam prior to installation atop foundation
Seal the sill plate to the rim joist with caulk
Spray foam provides a critical seal between the subfloor, rim joist, and sill plate
Wrong – Caulk is too far from sill plate to properly air seal
Wrong – Foam sprayed at exterior sheathing and sill plate connection leaving gaps beneath sill plate
Wrong – No foam gasket or air seal beneath sill plate
Wrong – No foam gasket or air seal between sill plate and masonry foundation