Building boards and methods for manufacturing same

Abstract

The present disclosure relates generally to building boards and methods of manufacturing building boards, such as gypsum wallboards. One aspect of the disclosure is a building board including a dry plaster core disposed between opposing facings, at least one facing having disposed thereon a surfactant (such as a quaternary ammonium salt surfactant). Another aspect of the disclosure is a method of manufacturing a building board that includes providing a wet building board by allowing a plaster slurry to set between opposing facings, the wet building board having a set plaster core disposed between the facings; and providing a surfactant (such as a quaternary ammonium salt surfactant) on at least one of the facings; then conducting the wet building board to a drying oven, for example, via one or more conveyers; and drying the wet building board in the drying oven to provide the building board.

Dependencies are inferred from the claim text.