Patent · US Active

Roofing tile and method for producing such a roofing tile

US11130710B2 · kind B2 · utility

0Cited by

11References

14Claims

0Family size

Assignee

BMI GROUP HOLDINGS UK LIMITED

Inventors

Andreas Drechsler · Baar, CH
Michael Friedrich · Wolfschlugen, DE
Michael Heise · Erbach, DE
Jurgen Klein · Essen, DE
Stephan Westphal · Echzell, DE
Ben Cranfield · Warwick, GB

Key dates

Filing date	Feb 14, 2018
Grant date	Sep 28, 2021
Priority date	—
Expiry date	Mar 11, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/00594
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A roofing tile composed of concrete material and a method for producing such a roofing tile. The concrete material contains a binder, a gravel, a light-weight aggregate, and added water. The roofing tile has at least one watercourse and a lateral interlocking joint having a covering fold and a water fold. The ratio of water to binder is less than 0.3, the light-weight aggregate is composed of a material that is hydrophobic and/or not hygroscopic, and the roofing tile has a density in the range of 1.6 g/cm3 to 1.9 g/cm3 after the hardening. The roofing tile has a thickness of 5 mm to 9 mm, preferably 7 mm to 8 mm, in the highly loaded regions, preferably in the region of the watercourse.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.