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US 9,011,221 B2Granted
Ember-resistant and flame-resistant roof ventilation
OwnerGregory S. Danielsinventor
Life of this patent
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Abstract
This application relates to ventilation systems, more particularly to roof ventilation systems that help to protect buildings against fires. The roof vent has an ember impedance structure that impedes the entry of flames and embers or other floating burning materials while still permitting sufficient air flow to adequately ventilate a building. Several configurations of vents employing baffle members and fire-resistant mesh material are described, which can substantially prevent the ingress of floating embers and flames.
Claims19
A roof vent, comprising:
- a first vent member comprising a first opening that permits air flow between a region below a roof and a region above the first vent member;
- and
- a second vent member adapted to be in fluid communication with the region above the first vent member, the second vent member comprising a second opening permitting air flow between regions above and below the second vent member,
- wherein at least one of the first and second vent members includes a fire-resistant mesh material consisting of flame-resistant stainless steel wool that provides a net free ventilating area with greater than about 90% open area and substantially prevents the ingress of floating embers through the first opening or the second opening.
1 more element
Dependencies are inferred from the claim text.