Lightweight cementitious roofing
OwnerKarl W. Jakelinventor
Life of this patent
Estimating the term…
Abstract
A lightweight roofing shingle or tile having an elongated body with top and bottom surfaces that taper lengthwise of the body, the body having laterally spaced, elongated edges; the body having a mid-region and a recess sunk upwardly into the mid-region, from the bottom surface; the recess extending widthwise of the body to intersect the body laterally spaced edges whereby the recess is adapted to receive a batten to support the body mid-region when installed on a roof. A secondary taper on the tile bottom surface engages the roof to provide leverage resisting wind up-lift forces exerted on the lightweight tile acting to rotate the tile about a nailing point fulcrum.
Claims11
A roofing shingle or tile having:
- a) an elongated body with top and bottom surfaces that taper lengthwise of the body, said body having laterally shaped, elongated edges,
- b) said body having a mid-region and a recess sunk upwardly into said mid-region, from said bottom surface, the recess having a bottom surface,
- c) said recess extending widthwise of the body to intersect said body laterally spaced edges,
- d) and including a batten received in the recess to support the body mid-region when installed on a roof, said batten also projecting outwardly of the recess, beneath said body, to flatly engage the roof,
- e) the batten having a rectangular cross-section with opposite parallel sides to respectively flatly engage the bottom surface of the recess and the roof surface.
A roofing shingle or tile having:
- a) an elongated body with top and bottom surfaces that taper lengthwise of the body, said body having laterally shaped, elongated edges,
- b) said body having a mid-region and a recess sunk upwardly into said mid-region, from said bottom surface,
- c) said recess extending widthwise of the body to intersect said body laterally spaced edges,
- d) whereby the recess is adapted to receive a batten to support the body mid-region when installed on a roof,
- e) said shingle or tile having a composition that consists essentially of the components:
- i) expanded perlite in particulate form,
- ii) an additional ingredient or ingredients selected from the group consisting of pumice and expanded shale, said additional ingredient or ingredients being in particulate form, and
- iii) Portland cement in particulate form,
- said composition having been hydrated and cured.
Dependencies are inferred from the claim text.