Attic insulation vent

Details Attic insulation vent Attic insulation vent

1981-08-13

1983-09-27

Murtagh, John E.

Static structures (e.g., buildings)

Gable or eave terminal construction

With conduit or passage means

52 90, 52404, 52407, 98 37, 98 42R, 98DIG6, E04B 718

Patent

active

044060955

ABSTRACT:
In a house structure in which insulated material is placed between and over attic floor joists, an insulation vent provides an air channel to allow free flow of ventilating air along the underside of roof sheathing between the exterior soffit and the interior of the attic above the insulating material. The vent is molded of one piece of expanded polystyrene. The vent has a base with longitudinal ribs, a pair of walls extending upward at an angle, and a pair of flanges extending outward from the edge of the wall, for attachment to the roof joists. The cross section of the vent is generally U-shaped. The vent is installed by flexing the walls inward, inserting the vent between a pair of roof joists and against the roof sheathing, and releasing the walls. The walls expand, pushing the flanges against a pair of roof joists. Friction holds the vent in place. The center of the U forms a channel for the passage of air.

REFERENCES:
patent: 1848272 (1932-03-01), Powell
patent: 3141206 (1964-07-01), Stephens
patent: 3972164 (1976-08-01), Grange
patent: 4096790 (1978-06-01), Curran
patent: 4102092 (1978-07-01), Ward
patent: 4197683 (1980-04-01), Ward
patent: 4214510 (1980-07-01), Ward
patent: 4237672 (1980-12-01), Peterson
patent: 4265060 (1981-05-01), Woodhams

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