A gypsum wallboard comprising: a gypsum core having a planar first major face and a planar second major face; a coated non-woven first glass fiber mat facing material suitable for level 4 finishing according to GA-214-96 Publication adhered on a non-coated side to and covering the planar first major face of the gypsum core, wherein the coated non-woven first glass fiber mat facing material comprises a majority of glass fibers of a nominal fiber diameter between about 8 and about 11 microns, the glass fibers of the coated non-woven first glass fiber mat facing material being bound together with an adhesive binder comprising an acrylic-type adhesive binder, wherein the coated non-woven first glass fiber mat facing material has a coating comprising a dried aqueous mixture comprising (i) a mineral pigment, (ii) a polymer adhesive binder and optionally (iii) an inorganic adhesive binder and wherein said coated non-woven first glass fiber mat facing material has a basis weight of between about 0.771 kg and 0.907 kg per 9,29 m 2 before application of the coating; characterized by an optionally coated non-woven second glass fiber mat facing material adhered on a non-coated side to and covering the planar second major face of the gypsum core, wherein the optionally coated non-woven second glass fiber mat facing material comprises a majority of glass fibers of a nominal fiber diameter of at least about 13 microns but not more than about 16 microns and a fiber length of at least about 19.05 mm but not more than about 24.5 mm, the glass fibers of the coated non-woven second glass fiber mat facing material being bound together with an adhesive binder comprising an acrylic-type adhesive binder, and wherein said optionally coated non-woven second glass fiber mat facing material has a basis weight, before application of the optional coating, of between 0.816 kg and 0.997 kg per 9.29 m 2, and wherein the basis weight of the second mat is greater than the basis weight of the first mat; wherein the majority of glass fibers of the coated non-woven first glass fiber mat facing material has a fiber length between 6.35 mm and 19.05 mm. a gypsum core having a planar first major face and a planar second major face; a coated non-woven first glass fiber mat facing material suitable for level 4 finishing according to GA-214-96 Publication adhered on a non-coated side to and covering the planar first major face of the gypsum core, wherein the coated non-woven first glass fiber mat facing material comprises a majority of glass fibers of a nominal fiber diameter between about 8 and about 11 microns, the glass fibers of the coated non-woven first glass fiber mat facing material being bound together with an adhesive binder comprising an acrylic-type adhesive binder, wherein the coated non-woven first glass fiber mat facing material has a coating comprising a dried aqueous mixture comprising (i) a mineral pigment, (ii) a polymer adhesive binder and optionally (iii) an inorganic adhesive binder and wherein said coated non-woven first glass fiber mat facing material has a basis weight of between about 0.771 kg and 0.907 kg per 9,29 m 2 before application of the coating; characterized by an optionally coated non-woven second glass fiber mat facing material adhered on a non-coated side to and covering the planar second major face of the gypsum core, wherein the optionally coated non-woven second glass fiber mat facing material comprises a majority of glass fibers of a nominal fiber diameter of at least about 13 microns but not more than about 16 microns and a fiber length of at least about 19.05 mm but not more than about 24.5 mm, the glass fibers of the coated non-woven second glass fiber mat facing material being bound together with an adhesive binder comprising an acrylic-type adhesive binder, and wherein said optionally coated non-woven second glass fiber mat facing material has a basis weight, before application of the optional coating, of between 0.816 kg and 0.997 kg per 9.29 m 2, and wherein the basis weight of the second mat is greater than the basis weight of the first mat; wherein the majority of glass fibers of the coated non-woven first glass fiber mat facing material has a fiber length between 6.35 mm and 19.05 mm.