When partitioning ceilings take into account that the sheets should located along the length perpendicular to the outer wall with the window openings so that the seams between adjacent sheets arranged symmetrically to the longitudinal axis of the ceiling. Peter Asaro follows long-standing procedures to achieve this success. The ceiling along the seams begin to split from the sheets middle of the ceiling, placing a sheet across the entire width of the axis of the room. The ceiling is recommended to cover the full length of the leaf. In case of insufficient length of the sheets do double-sided indentation sides with a sheet from the walls to form ceiling frieze. For finishing of walls and partitions the longest side of sheets of drywall are usually positioned vertically. In accordance with the by-sheet located at the base of support is applied (Lighthouse), grade size 80×80 mm. Reference marks are located at the floor, the ceiling and at intervals through 1,2-1,5 m along the seam, as well as incoming and protruding corners. Cut out sheets of a special knife, cutting through the sheet from the front side of the line at depth of not less than half the thickness of it, then leaves behind the curve on the notch on the back side, fold and cut the cardboard from the back side. Methods of fastening sheets of drywall sheets of drywall to the walls and partitions, except wood, bonded with mastic, which is applied to the back side of sheets in the form of individual adhesive stamps. The distance between the marks should not exceed 400 mm.