Fibrous mat-faced gypsum board

Details Fibrous mat-faced gypsum board Fibrous mat-faced gypsum board

1987-03-02

1989-03-07

Herbert, Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

52481, 156 39, 156 41, 156 42, 156 71, 428332, 428337, 428703, B32B 1304, B32B 1314, B32B 1704, B32B 3112

Patent

active

048105694

ABSTRACT:
An exterior finishing system for a building. including particularly an exterior insulation system, which includes a fibrous mat-faced gypsum board, preferably a board in which the set gypsum core thereof is water resistant, and preferably one in which the set gypsum core is sandwiched between two sheets of porous glass mat, with the outer surface of at least one of said mats being substantially free of set gypsum, and means for preparing the board, including control of the viscosity of the aqueous gypsum slurry from which the set gypsum core of the board is formed. Also, the use of fibrous mat-faced gypsum board as the shaft liner panel in a shaft wall assembly.

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