Rooftop canvas

Abstract

Rooftop canvas includes a twill texture layer having a plurality of flat warp strips extending in a longitudinal direction and a plurality of flat weft strips extending in a lateral direction perpendicular to the longitudinal direction. An imaginary line passing through an intersection of one of the flat weft strips and one of the flat warp strips and an intersection of another flat weft strip adjacent to the flat weft strip and another flat warp strip adjacent to the flat warp strip is inclined relative to the longitudinal direction and the lateral direction. The twill texture layer is superimposed on a first covering layer. The rooftop canvas can further include a second covering layer, with the first covering layer sandwiched between the twill texture layer and the second covering layer.

Dependencies are inferred from the claim text.