![]() holes left for scaffolding) shall be properly filled in advance of the plastering. If there are bonding agents specified by consultants or manufacturers, then it shall be applied according to the instructions before the plastering can commence. Either way, the walls shall be brushed clean of all dust, thoroughly wetted and surface dried before plaster is applied. It is a good practice to lay blockwork with recessed joints to receive plaster, but this is not always the case. A decision will have to be taken before the next stage of the plastering work can commence. If there are deviations, then know that the thickness of the plastering work will be affected, and that will affect the cost and duration of the work. If the walls are in conformity with the construction drawings, then there is no problem. It is important to check the edges of the wall for squareness, and the length and height for perfect horizontality and verticality. (1) Check for straightness of the wallīefore the commencement of any plastering work, it is important to be very familiar with the wall to be plastered by carrying out simple checks. In order to carry out a good plastering job, here are some important steps to follow especially where accuracy is important. (2) Spalling/falling off of plasters from the wall If the thickness of plaster exceeds 15 mm, it will be important to plaster in two coats. ![]() The typical thickness of plasters ranges from 12 mm to 15 mm. Plaster surfaces can be made relatively smooth or rough, depending on the next stage finishes to be applied. Poorly done plastering work can ruin the aesthetics of a building, and lead to high repair/maintenance costs. ![]() Plastering of a wall is a skilled labour, and requires the services of an experienced mason. How to determine the quantity of mortar for laying block ![]()
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