Patent ID: 7487624
Filing Date: 2009-02-10
Classification: E04B,E04C,E04F,Y10T

Abstract:
1. A breathable waterproof structure, comprising a waterproof layer, mounted on an exterior wall side, that is a composite of a spun bonded non-woven sheet material with a resin layer on an interior surface of the sheet material; and a vent layer-forming member comprised of a corrugated spun bonded non-woven sheet material that is integrally attached to the waterproof layer by being multiply spot-adhered via the valleys thereof, thereby generating the vent layer with a designated gap with the waterproof layer, wherein the vent layer-forming member is formed by further spot-adhering to an interior side surface of the non-woven sheet material, a waterproof moisture permeable corrugated layer, at multiple spots thereof, the waterproof moisture permeable corrugated layer accommodating the contour of the vent layer-forming member.