Method of employing an extruded open-cell alkenyl aromatic foam

Static structures (e.g. – buildings) – Disparate sheet lamina between exposed surfaces of wall,...

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523096, 523098, 52514, 52515, 52517, 5274611, E04D 110

Patent

active

055578969

ABSTRACT:
Disclosed is a roofing system for a structure such as a building. The system comprises a roof deck; a plurality of panels of an extruded alkenyl aromatic polymer foam above and adjacent the deck; and a substantially waterproof membrane above and adjacent to the foam. The foam has from about 30 to about 80 percent open cell content. The foam provides excellent mechanical support for the membrane, and is water resistant. The foam further has a high heat distortion temperature, and is substantially free of distortion at high service temperatures encountered in roofing systems. Further disclosed is a recovery roofing system employing the above foam. Further disclosed are processes for constructing a new roofing system and a recovery roofing system.

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patent: 5373026 (1994-12-01), Bartz et al.
patent: 5411687 (1995-05-01), Imeokparia et al.

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