US 2013/0143036 A1 · ROOFING TILE WITH ENHANCED SURFACE DURABILITY AND PROCESSES FOR MANUFACTURING THE ROOLING TILE

Abstract

A new roofing tile with enhanced surface durability and processes for manufacturing the same. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Claims20

Dependent claims

A method of manufacturing a coated cement roofing tile;

said coated cement roofing tile comprising:
a cement roofing tile substrate with a coating disposed on said cement roofing tile substrate;
said coating being configured to maximize surface durability during weathering, maximize surface smoothness during weathering, and maximize surface acid-erosion resistance during weathering;
said method comprising the steps of:
providing a cement roofing tile substrate;
mixing water and a cementitious mixture to form a cementitious slurry;
said cementitious slurry comprising a hydraulic binder;
said hydraulic binder comprising:
at least about sixty percent by weight of a material comprising calcium aluminate;
and
no more than about one percent by weight of a sulfate;
applying said cementitious slurry to said cement roofing tile substrate and forming a cementitious coating on said cement roofing tile substrate;
hydrating said cementitious coating on said cement roofing tile substrate to form a coated cement roofing tile;
and
hardening said cementitious coating to form an at least partially finished cement roofing tile.

12 more elements

A roofing tile comprising:

(a) a substrate;
and
(b) a coating disposed on said substrate, said coating resulting from hydration and hardening of a mixture comprising a hydraulic binder, said hydraulic binder comprising at least 60% by weight of a source of calcium aluminate and no more than 1% by weight of sulfate.

Dependencies are inferred from the claim text.

Roofing tile with enhanced surface durability and processes for manufacturing the rooling tile

Life of this patent

Roofing tile with enhanced surface durability and processes for manufacturing the rooling tile

Life of this patent

Abstract

Claims20