Shear walls, when it is used is fixed to the frame on the floor and roof system structure that can withstand the transverse shear loading, such as transverse shear load of plywood or oriented strand board panels cement. The panel heat transfer is reduced as compared with other cement panel structure. The panel is applied to calcium sulfate alpha hemihydrate, cement rigs, the coated expanded particles peorayiteu filler, optionally additional filler, an active pozzolan and curing an aqueous mixture of one or more layers of the continuous phase produced by the lime. The particle size of the coated expanded peorayiteu is 1-500 microns, median diameter is 20-150 microns, an effective particle density (specific gravity) is 0.50 g / cc under. It is reinforced with alkali-resistant glass fibers - the panel of fiber, for example within. The preferred panel does not include intentionally committed entraining air. It is also disclosed a method to improve fire resistance of the building.