Floating and Setting Coat to Ceiling

Ceilings should be floated to create a flat surface, it also increase fire protection. The thickness of the material depends entirely on the material you are using and the information for that material given by the manufacturer. No matter what material you are using, the floating should be kept as tight as possible. Floating a ceiling is a difficult task. A stable, low level scaffold will need to be set up so that you can move around with ease because you will not be able to look where you are walking. A datum line should be placed about 225 mm below the ceiling and go the whole way around the room. Look out for what you think is the lowest point of the ceiling. Make sure the point is about 150 mm away from from the wall and place a dot there using a lath. Hold a square against the wall and the dot. To make sure that it is square, either tap the dot in or pull it out depending on what way it needs to go. Once the first dot has been positioned perfectly, make a mark on the square that is in line with the datum point. Other dots can then be positioned and lined up using marks on the square and the wall. When the material has set, you can then apply a finishing coat.