Patent ID: 6767281
Filing Date: 2004-07-27
Classification: F24F

Abstract:
A passive venting device for venting a building enclosure to an outside, the device comprising:a base member, including an attachment portion for securing the base member in fluid communication with a ventilation passage through a surface of the building enclosure, and a vent structure attached to said attachment portion for permitting gas and vapour to pass through the device, the vent structure having a vent opening; a cover member mounted to the base member, the cover member and the base member being sized, shaped and positioned so as to define a flow path for the flow of gas and vapour from the vent opening to the outside; a precipitation baffle, extending from at least one of the base member and the cover member, the precipitation baffle being sized, shaped and positioned both to interfere with the entry of precipitation from the outside into the enclosure through the vent opening, and to permit gas and vapour to flow to the outside through the vent opening; the cover member and base member being sized, shaped and positioned so as to block snow from entering under the cover member by blowing between the cover member and the base member.