The technology and sequence of installation of the frame and drywall of a single-level ceiling, point by point, from the beginning to painting - the stages and order of the process according to Knauf technology - Ceiling P113. Rules for installing drywall, distance and pitch of installation of the main and supporting ceiling profile and suspensions. Stages when sealing (putty) seams (joints) of drywall, preparation for painting.
From this material, you can learn about the sequence and installation rules when creating a frame and fixing drywall to a simple ceiling.
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1) Along the perimeter of the walls, indented from the ceiling, a guide profile is marked and attached.
2) To concrete or brick, the profiles are attached using dowels, with a spacing of not more than 500 mm, and at least three attachment points for one profile. A special sealing tape is placed between the profile and the wall.
3) On the ceiling, places for suspensions are marked. Suspensions are attached to the main ceiling with a maximum allowable pitch of 1100 mm for gypsum plasterboard ceilings and weighing no more than 15 kg / m2
4) The first main profile is installed at a distance from its axis to the wall with an offset of 1200 mm, the subsequent distance between the axes of the main profiles is made with the same pitch equal to the width of a standard drywall sheet.
The ends of the profile are inserted into the guide profile with a gap of about 5mm on each side. With the help of suspensions, the height of the profile is adjusted and fixed in one common horizontal plane.
5) Next, the bearing profiles are installed perpendicular to the main profile, for this, single-level connectors, popularly called "crab", are installed on the main profiles.
6) The first bearing profile is installed from the wall at a distance of no more than 100 mm. subsequent bearing profiles are installed in increments of no more than 500 mm. Bearing short profiles are connected to the main profiles through connectors and are fixed with self-tapping screws. Docking of the end edges of the sheet is carried out only on the bearing profiles of the frame.
7) A separating tape is glued along the perimeter of the room, under the guide profile.
8) Plasterboard sheets are prepared, on the open end joints of the sheet, from the front side, a chamfer is removed at an angle of 22.5% and to a depth of two-thirds of the sheet thickness.
9) On the ceiling frame, drywall sheets are attached parallel to the main profiles. Adjacent sheets are mounted at a distance of at least 1 step between the bearing profiles.
10) Sheets are fixed to the profile using special self-tapping screws 25mm long and 3.5mm in diameter. with a pitch between self-tapping screws no more than 170 mm, no closer than 10 mm to the factory edge of the sheet covered with cardboard and no more than 15 mm from the cut edge of the drywall sheet. When fastening two adjacent sheets on one profile, the screws should be spaced apart.
Self-tapping screws should be screwed in only at right angles, while the self-tapping screw should enter at least 10 mm into the metal profiles, and the head should be recessed into the sheet by 1 mm.
11) All seam ends not covered with cardboard must be primed.
12) With a special putty for seams, in the first layer, seal the joints between drywall sheets and at the joints of drywall and walls, without allowing the putty to dry, stick a special reinforcing tape onto the seams, pressing it into the putty with a spatula, and then putty all the screws.
13) Allowing the first layer to harden and dry, apply a second leveling layer over the reinforcement tape.
14) After the putty has dried, if necessary, the irregularities are cleaned and the entire ceiling is primed.
15) For a high-quality painting of the ceiling, it is necessary to perform a continuous putty of the entire surface, after which sanding and priming are performed, the ceiling is ready for painting.
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