Patent ID: 8703632

Claim:
A building board for use as a carrier for a surface cladding of ceramic tiles, a stucco, or a trowel mortar, on or in buildings, comprising: a moisture-resistant foam-material core layer comprising at least two sides including a first side and a second side; and a first set of webs coupled to said first side comprising: a first web comprising a paper sheet; a second web coupled to said first web; a third web coupled to said second web; a second set of webs coupled to said second side comprising: a fourth web comprising a paper sheet; a fifth web coupled to said fourth web; a sixth web coupled to said fifth web wherein said first web comprises a material having a structure that is different in structure from said second web, and said third web, said second web comprises a material having a structure that is different in structure from said third web, said fourth web comprises a material having a structure that is different in structure from said fifth web and said sixth web, said fifth web comprises a material having a structure that is different in structure from said sixth web; wherein said six webs and said foam material core layer combine to form the building board and wherein said third web and said sixth web each define an exterior surface of the building board, wherein said third web and said sixth web each are a non-woven fabric having a textile surface structure, said third web and said sixth web comprising material forming an adhesion base for the ceramic tiles, a stucco, or a trowel mortar.