E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
72/44, 20/50
E04D 11/02 (2006.01)
Patent
CA 1218825
ABSTRACT. To build up a screed coat on a roof surface, a granular ex- panded inorganic material is subjected to an atomized spray of an adhe- sive consisting of a solution of waterglass and a hardener therefor so as to form a thin film of adhesive on each grain of the material, and the spray coated granular material thus obtained is immediately convey- ed to and poured out on the roof surface. It is then spread over the roof surface and compressed to form a coherent layer constituting the screed coat. This may form a base for the superposition of insulating boards and a waterproof roof covering. The method is particularly useful in the renovation of deficient roofs originally built without a gradient towards outlets or gutters. Apparatus for carrying out the method comprises a device for causing the granular material to drop in the form of a cylindrical curtain, a rotational atomizer for spraying two component adhesive onto the surfaces of the dropping grains and a suction blower system for pneumatically conveying granular material to the spray coating station and, after treatment therein, to a pouring device on the roof.
446604
Fetherstonhaugh & Co.
Thygesen Sýren
LandOfFree
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