Passive venting device
First Claim
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1. 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.
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Abstract
A passive venting device for venting enclosures comprising a base member, including an attachment portion and a vent structure for permitting gas and vapour to pass through the device; a cover member mounted to the base member so as to permit the flow of gas and vapour to the outside; and a precipitation baffle which is sized, shaped and positioned to interfere with the entry of precipitation from the outside. The device also has a ventilation pathway spaced from the roof so as to permit thick shakes or tiles to be installed right up to the device without interfering with ventilation.
107 Citations
31 Claims
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1. A passive venting device for venting a building enclosure to an outside, the device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A passive venting device for venting a building enclosure to an outside, the device comprising:
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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 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 an uncloseable flow path for the flow of gas and vapour from the vent opening to the outside, the flow path including a ventilation pathway extending through the cover member, the flow path having an airflow area;
the cover member being sized, shaped and positioned on the base member such that roofing material may be installed in abutment with the cover member, the flow path being positioned such that the roofing material may be installed abutting the cover member without reducing the airflow area. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification