Blister vent

Details Blister vent Blister vent

1990-11-30

1992-03-10

Scherbel, David A.

Static structures (e.g., buildings)

Enclosure or cover, with supplemental fluid-guiding port...

Attic vent

52303, 137197, E04B 700

Patent

active

050940490

ABSTRACT:
An improved blister vent for relieving pressure within a blister on a multi-layered roof, wherein the shaft extending downwardly therefrom is provided with laterally extending threads, the pitch of which approximates the thickness of each of the layers of the roofing material.

REFERENCES:
patent: 4757654 (1988-07-01), Korhonen et al.

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