Patent attributes
An impaling washer is provided for use in building construction. The impaling washer includes a sealing body having an aperture that is configured to receive a fastener. The fastener penetrates a membrane covering a wall and secures the sealing body to the wall. The sealing body includes an inner surface portion surrounding the aperture that seals against an outer surface of the membrane. At least one impaler extends from an outer side of the sealing body and away from the wall. The impaler is configured to engage a thermally-insulating material and hold the thermally-insulating material at the outer side of the sealing body. A thickness of the sealing body thereby forms a gap between the thermally-insulating material and the outer surface of the membrane for air insulation and drainage along the outer surface of the membrane.