The surface should be evened, without sharp edges, protrusions and loose aggregate. Bigger irregularities should be evened with a mortar or removed with a chisel; a facet made of any kind of fast-setting mortar with the minimum radius of 3cm should be installed earlier in all the internal and external corners. In low temperatures (below +5°C) it should be frost and ice-free. The surface should be primed with an appropriate priming agent depending on the conditions. In order to install waterproofing membranes on walls glue vertical membrane strips on the pre-primed surface. The surface should be covered with the adhesive side of the membrane by gradually removing the protective paper cover. On very high walls the membrane must be glued very precisely, particularly in the upper part, in order to prevent it from sliding down. Most often, the upper rim of the strips installed are secured with a profile. The length of the strips on vertical surfaces should not exceed 3m. The length of the strips on horizontal surfaces should be adjusted to conditions.
Traverse overlaps should be moved in relation to each other at least by 30cm. It is recommended to use rollers or tar brushes in order to lay the membrane evenly and to remove the air from the area between the membrane and the surface. Membrane strips should be glued with each other with overlaps that are at least 5cm wide. The overlapping membrane strips that are adjacent to each other are glued together by strong pressing with a rubber roller. Accidental damage of the membrane is easy to notice and can be fixed by applying patches of Bimeq® membrane. The area of the patch has to be bigger than the damaged area.