Underroof

Details Underroof Underroof

1987-03-18

1989-07-04

Safavi, Michael

Static structures (e.g., buildings)

Disparate sheet lamina between exposed surfaces of wall,...

523091, 5230915, 52407, 52515, E04B 700

Patent

active

048437743

ABSTRACT:
An underroof for a sloping exterior roof and comprising a moisture-absorbing layer which on both sides comprise spaced, substantially horizontal highly diffusion-resistant strips, the diffusion-resistant strips on the top side of the moisture-absorbing layer partly overlapping the diffusion-resistant strips on the underside and being water tightly connected along their upper edges with the diffusion-resistant strips on the underside.
The underroof is impermeable to water flowing along the top surface thereof but has a sufficiently high resistance to diffusion to prevent summer condensation. Furthermore, it is capable of absorbing and discharging condensate formed on its underside.

REFERENCES:
patent: 2760881 (1956-08-01), Toulmin, Jr.
patent: 3122073 (1964-02-01), Masse
patent: 3149693 (1964-09-01), Kelley et al.
patent: 3310917 (1967-03-01), Simon
patent: 3665667 (1972-05-01), Oberley et al.
patent: 3694983 (1972-10-01), Couquet
patent: 4244151 (1981-01-01), Seem
patent: 4244761 (1981-01-01), Remi et al.

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