Implementation

a.) The proper way of choosing the height of plastering
If there is no dampness measuring instrument at your disposal, then the boundary of the plaster-replacement should be marked, on the basis of the experimentaal data, with at least the measure of wall thickness above the visible boundary of dampness.
Sketch
b.) Preparation of the surface
In the case of  brick walls, remove the plaster, lean the brick jointings as deep as 1-2 cm, then clear the surface of dust.
Remove the plaster in the case of earth-walls as well. Wall up collapses with the mortar used in plastering. Apply double horizontal battening or wire-lattice wall on the whole surface. Take up the brick moulding and remove the plaster from here, too. 
c.)Plastering
The mixture of cement and water cannot be applied on brick-surface. If the surface dry, it has to be moistened with pure water. Plastering is carried out with traditional mason technology, applied in several layers.

The minimum thickness of the made plaster is 2,5 cm (1 inch)!
Avoid compression of the substance!
Apply only as much plaster that can be floated with continuous work. Roughcasting cannot be used in advance because the new layer of plaster will not hold the next day. Use plastic tools if possible. Hard Styrofoam may be used for floating.
When renovating facades covered with sanstone powder, the composition of the mortar is as follows; 50% of the sand-additive is substitued with sandstone powder. The surface is to bescraped as to the pattern of the original surface. After coating it with paint, the correction is not visible.
When used rendering in bathrooms and shower-stalls, there is no need to float the surface. We can form a smooth surface with a lath and after drying the coating material should be fixed in cement-base adhesive.
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