Abstract: A sealing plate for use with a building, the building having an inner wall structure, an air impermeable sheet material for covering the inner wall structure and defining an air impermeable barrier, an insulation material on top of the sheet material and an outer wall structure outside of the insulation material uses a wall tie mounted on the inner wall structure and to attached to the outer wall structure for support. The wall tie has a first plate portion which is vertically mounted on the inner wall structure, a second plate portion connected to the first plate portion and extending therefrom inserted vertically through a slit on the sheet material, through a second slit on the insulation material, the second portion has at least one hole in which a suitable mount means is inserted and attached to the outer wall structure connecting the inner wall structure and the outer wall structure.