Rats and mice are pushing through the gap between your siding and foundation — that 1-1/2 inch space where the sheathing ends and the concrete begins. Spray foam fills the void but doesn't stop gnawing. You need metal coverage. This rat guard flashing seals that gap permanently. 1-1/2-inch x 7/8-inch x 1-3/4-inch stepped profile — covers the standard gap between foundation and siding. 10-foot 5-inch length minimizes splices on a typical foundation run. 26-gauge galvanized steel with black powder-coat finish resists corrosion through seasons of freeze-thaw and holds up under siding expansion and contraction. The multi-dimensional profile compresses the gap without restricting theweep vent that code often requires. Standard on rodent exclusion work and code-compliance finishing across Knox C Stocked at Crofton Lumber and Akron Lumber.