Patent ID: 7662221
Filing Date: 2010-02-16
Classification: E04B

Abstract:
1. A spray applied building construction coating material for forming a waterproofing, water vapor permeable, air barrier, building-wrap layer between an exterior facing surface of exterior wall sheathing and an interior facing surface of an exterior wall cladding layer and/or an exterior facing surface of roof deck sheathing and an interior facing surface of an exterior roofing cladding layer, comprising: a liquid, spray-applied, oil-based elastomeric emulsion coating material means for forming a waterproofing, water vapor permeable, air barrier coating layer, which, after being spray applied to sheathing, solidifies to form a waterproofing, water vapor permeable, air barrier coating layer having an exterior portion that forms an exterior facing surface of the coating layer, an inner portion that is in contact with and adhered to the sheathing, and an intermediate portion between the exterior portion and the inner portion of the coating layer wherein the oil-based elastomeric emulsion coating material means contains tung oil for causing the exterior portion of the coating material means solidifies at a different rate than rates at which the intermediate portion and the inner portion of the coating material means solidify to form wrinkles in the exterior facing surface of the exterior portion of the coating material means and to form an exterior facing, textured surface on the coating layer for providing passages between the exterior facing surface of the coating layer and an interior facing surface of an exterior cladding layer for draining water from between and permitting air flow between the exterior facing surface of the coating layer and the interior facing surface of the exterior cladding layer.