Modified base ply roof membrane set in formulated concrete...

E - Fixed Constructions – 04 – D

Patent

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Details

E04D 3/24 (2006.01) E04D 3/26 (2006.01)

Patent

CA 2705245

A slurry coat of formulated concrete is applied to a new or existing top coat of lightweight insulating concrete to repair cracks and holes and attach a base ply roof membrane, thereby eliminating the need for a base sheet and mechanical fasteners when installing a roof membrane system on the lightweight concrete deck of a roof structure. The formulated concrete slurry comprises a mixture of Portland cement (type I), cellulose, poly vinyl alcohol, and water. A base ply (modified or single ply) roof membrane having a sanded or fleece bottom side is set into a 1/4 inch thick slurry coat of the formulated concrete to effectively attach the base ply roof membrane to the lightweight concrete deck.

Selon l'invention, une couche de bouillie de béton formulé est appliquée sur une couche supérieure nouvelle ou existante de béton isolant léger pour réparer les fissures et les trous et fixer une membrane de toiture de couche de base, permettant ainsi d'éliminer la nécessité d'une feuille de base et d'organes de fixation mécaniques lors de l'installation d'un système de membrane de toiture sur la terrasse en béton léger d'une structure de toiture. La bouillie de béton formulé comprend un mélange constitué de ciment Portland (type I), de cellulose, d'alcool polyvinylique et d'eau. Une membrane de toiture (modifiée ou à simple couche) de couche de base ayant un côté inférieur sablé ou molletonné est disposée dans une couche de bouillie épaisse de 1/4 de pouce du béton formulé pour fixer efficacement la membrane de toiture de couche de base à la terrasse en béton léger.

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