Building facing material

Claim 1

A DECORATIVE SHEET BUILDING MATERIAL COMPRISING: AN INTEGRAL BACKING LAYER OF PLASTIC MATERIAL HAVING A PLURALITY OF SPACED APART RAISED PORTIONS ON ITS UPPER SIDE ARRANGED IN A PREDETERMINED PATTERN, SAID PORTIONS BEING SEPARATED BY AND EXTENDING ABOVE SIMULATED GROUT AREAS HAVING A SUBSTANTIALLY UNIFORM LAYER THICKNESS; AN EXPOSED OUTER LAYER OF A RELATIVELY UNIFORM THICKNESS COMPRISING A HARD, RELATIVELY CLEAR PLASTIC MATERIAL COVERING EACH OF SAID RAISED PORTIONS BUT NOT SAID GROUT AREAS, SAID CLEAR PLASTIC MATERIAL HAVING A ROUGH AND ABSORBENT INTERIOR SURFACE; AND A RELATIVELY THIN INTERMEDIATE LAYER OF COLORED RESIN MATERIAL ON SAID ROUGH INTERIOR SURFACE BETWEEN SAID EXPOSED PLASTIC MATERIAL AND SAID BACKING LAYER DISTRIBUTED ON AT LEAST SOME OF SAID RAISED PORTIONS, WHEREBY SAID BUILDING MATERIAL HAS A HARD DURABLE EMBOSSED SURFACE WITH SAID RAISED PORTION PROVIDING A NON-REPEATING COLOR PATTERN SEPARATED BY SIMULATED GROUT AREAS OF UNIFORM COLOR.