a moisture - permeable acoustic lamina which is usable as a wall covering has a foraminous woven fabric layer adhered to a fabric backing by a discontinuous thermoplastic polymer layer . the woven fabric preferably has an embossed undulate outer surface to enhance the acoustic properties of the lamina and to impart an aesthetic textural appearance . the individual yarns of the woven fabric are preferably substantially uniformly coated with a polyvinyl chloride plastisol to impart stain and wear - resistance , inhibit the growth of molds , fungi , bacteria and the like , and to enhance the appearance of the exposed face of the lamina . the moisture - permeable lamina structure allows wall covering paste , used to adhere the lamina to a wall , to dry at an acceptable rate , yet does not allow paste to bleed through the foraminous woven fabric layer .