Roof construction system holding roof membranes in place by suct

Details Roof construction system holding roof membranes in place by suct Roof construction system holding roof membranes in place by suct

1981-04-03

1983-10-18

Perham, Alfred C.

Static structures (e.g., buildings)

Controlled by condition responsive means

52199, 98 34, E04F 1704

Patent

active

044097611

ABSTRACT:
A roof construction system wherein loosely-laid membranes on the top of a roof are held in place on the roof by suction forces when the wind blows, the suction forces varying directly in proportion to the wind velocity which would otherwise tend to lift the membrane so that frontal pressure and drag could dislodge or damage the roofing.

REFERENCES:
patent: 1451884 (1923-04-01), Moen
patent: 1965158 (1934-07-01), Rogliano
patent: 4223486 (1980-09-01), Kelly

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