Static structures (e.g. – buildings) – Disparate sheet lamina between exposed surfaces of wall,...
Patent
1991-11-27
1994-06-07
Friedman, Carl D.
Static structures (e.g., buildings)
Disparate sheet lamina between exposed surfaces of wall,...
52 901, 52 11, 523021, E04B 700
Patent
active
053178521
ABSTRACT:
The layers of materials constituting the sub-roof under a water-impervious membrane are adapted to provide localized downward drainage passages to a drop-off point that is detectable from underneath the roof. The location of the leak is thus identified within a spacing of these passages. The rupture of the membrane causing the leakage is then easily repaired with a minimum disturbance to the roof structure.
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Canfield Robert J.
Friedman Carl D.
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