The invention relates to a surface coverings system for a surface such as a roof, a floor or another substantially flat surface subjected to water and needs drainage, and methods for preparing such a system. The surface covering system comprises a rectangular plate with a mark marking a highest point, a substantially flat lower surface and an upper surface with a first slope facing from the mark towards a second mark provided in connection to the outer edge of the plate. The first slope is circular and has a linear radial inclination () facing from the mark towards essentially all points on the rectangular plate. The slope forms an elevation in the plate forming at least a part of a cone or blunt cone with the tip of the cone defined by the mark with the lowest point(s) of the upper surface of the disc defined by the second mark.

The invention relates to a surface coverings system for a surface such as a roof, a floor or another substantially flat surface subjected to water and needs drainage, and methods for preparing such a system. The surface covering system comprises a rectangular plate with a mark marking a highest point, a substantially flat lower surface and an upper surface with a first slope facing from the mark towards a second mark provided in connection to the outer edge of the plate. The first slope is circular and has a linear radial inclination () facing from the mark towards essentially all points on the rectangular plate. The slope forms an elevation in the plate forming at least a part of a cone or blunt cone with the tip of the cone defined by the mark with the lowest point(s) of the upper surface of the disc defined by the second mark.

A roof tile having a mesh covered foam core with a cement-based protective coating, a roof covering formed from such tiles and methods for making same.

A roof tile having a mesh covered foam core with a cement-based protective coating, a roof covering formed from such tiles and methods for making same.

A roof tile having a mesh covered foam core with a cement-based protective coating, a roof covering formed from such tiles and methods for making same.

A roof tile having a mesh covered foam core with a cement-based protective coating, a roof covering formed from such tiles and methods for making same.

The invention relates to a surface coverings system for a surface such as a roof, a floor or another substantially flat surface subjected to water and needs drainage, and methods for preparing such a system. The surface covering system comprises a rectangular plate with a mark marking a highest point, a substantially flat lower surface and an upper surface with a first slope facing from the mark towards a second mark provided in connection to the outer edge of the plate. The first slope is circular and has a linear radial inclination () facing from the mark towards essentially all points on the rectangular plate. The slope forms an elevation in the plate forming at least a part of a cone or blunt cone with the tip of the cone defined by the mark with the lowest point(s) of the upper surface of the disc defined by the second mark.

The invention relates to a surface coverings system for a surface such as a roof, a floor or another substantially flat surface subjected to water and needs drainage, and methods for preparing such a system. The surface covering system comprises a rectangular plate with a mark marking a highest point, a substantially flat lower surface and an upper surface with a first slope facing from the mark towards a second mark provided in connection to the outer edge of the plate. The first slope is circular and has a linear radial inclination () facing from the mark towards essentially all points on the rectangular plate. The slope forms an elevation in the plate forming at least a part of a cone or blunt cone with the tip of the cone defined by the mark with the lowest point(s) of the upper surface of the disc defined by the second mark.

The present invention includes a material and method of installing a construction material for dry or arid climates, comprising: a growth media comprising an abiotic porous material and activated charcoal such as biochar; and at least one of a compost, grain hulls and nut shells, wherein plants in the material are able to survive without exogenous water for use in areas comprising at least one of Aw, BS, BW, Csa, Csb, Ds or Dw climates according to the Koppen-Geiger climate classification.

A roof tile having a mesh covered foam core with a cement-based protective coating, a roof covering formed from such tiles and methods for making same.