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Laying the plasterboard

The plasterboard "Top" is a plate with round edges, 13 mm thick 1.25 m x 0.90 m. Its dimensions facilitate the transport and the implementation while offering technical and aesthetic performances of quality. Its rounded edges allow the use of the paperless seam technique thanks to a specific coating (Uniflott coating) for an easier finish with no extra thickness. This plate is available in standard universal version and in water repellent version for wet rooms.

Necessary material

  • Cutter
  • Screw, screwdriver
  • Bubble level
  • Nibbler
  • Raise plate
  • Auge
  • Knife to coat
  • KNAUF plaster Uniflott
  • Water
  • Sanding block

Steps

  1. Installation in partition on metal frame
  2. The coating

Installation in partition on metal frame

Screw the plates onto the frame (here for a partition wall)

Screw the plates onto the frame (here for a partition wall)

1. Create a standard NF metal frame, consisting of 48/35 studs, with 45 cm spacing, and positioned between 48 mm rails. Screw the plates onto the frame.

In a roof, the cut off edge is positioned against the ground or the ceiling

In a roof, the cut off edge is positioned against the ground or the ceiling

2. Start by screwing an entire plate to one side of the wall and, on the other hand, start with a half plate, with the cut-off edge positioned against the floor or ceiling.

Fix the siding in a staggered way

Fix the siding in a staggered way

3. Make sure that on each side the siding is set off for better mechanical strength (60 joules).

Laying the plasterboard

Ceiling installation on metal frame

Ceiling, pose perpendicular to the frame

Ceiling, pose perpendicular to the frame

1. The plate can be fixed on a skeleton ceiling by laying perpendicular to the framework. The spacing should be about 40/45 cm depending on the configuration of the room, so that the four edges fall in support on a fur.

Under the roof, screw the plate directly on the metal furs

Under the roof, screw the plate directly on the metal furs

2. Screw the plate directly onto the metal furring, taking care to put the four edges in contact with the metal supporting framework.

The coating

Prepare the plaster

Prepare the plaster

The rounded or beveled edges of this plate make it possible to use the technique of joints without paper band by applying the special coating (Knauf Uniflott).
1. In a trough containing cold, clean water, pour the plaster down to the surface (max 2.5 kg in about 1.2 l of water).

Mix the coating

Mix the coating

2. Let the plaster rest for 2 to 3 minutes and mix it without adding with a coating knife to obtain a creamy paste.

Apply the coating with small touches using a coating knife

Apply the coating with small touches using a coating knife

3. Apply the coating. You can do this using a plaster knife or a large spatula. Work in small steps, between the joints, perpendicular to the plates and this over the entire height. Remember to close the screw heads.

To scrape well to spread the plaster

To scrape well to spread the plaster

4. Then scrape from bottom to top to spread the plaster. After 30 to 40 minutes, before final drying, remove excess coating.

Make a second application with a larger plastering knife

Make a second application with a larger plastering knife

5. Make a second application with a wider coating knife to obtain a smooth surface without overflowing the flat parts of the plates.

Sand lightly to finish the job

Sand lightly to finish the job

6. After complete drying, sand lightly for a perfect finish (especially if you have to paint the plate).

(photos / visuals: © Knauf Insulation, except special mention)

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