Patent ID: 7469510

Claim:
An interior construction system comprising: one or more prefabricated drywall elements; at least one skim coat deposited on the one or more prefabricated drywall elements from a coating formulation comprising water, a binder present in an amount of between about 1.0% and about 4.0% by weight, a mineral filler having a mean diameter between about 5 and about 35 μm, and a polymeric noncellulosic thickener, wherein the polymeric noncellulosic thickener is a polyacrylate, and wherein the coating formulation does not contain any cellulosic thickener; and at least one jointing material for assembling the one or more prefabricated drywall elements by jointing the drywall elements to form a substantially planar outer surface, wherein the jointing material, when dry, substantially matches the skim coat, and wherein the jointing material comprises a thickener and a water retention agent.