ADVICE
Dimpled membrane
The dimpled membrane is designed to make: vertical insulation of foundations, walls, and ceilings in direct contact with the ground
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ADVICE
INSTALLATION OF DIMPLED MEMBRANE
Features
It also works well as insulation of terraces, floors or as a layer draining water from the structure of green roofs. Additionally, it can be combined with the thermal insulation of the foundation walls.
It is characterised by high flexibility and resistance to stretching and tearing. Thanks to this, it is able to withstand the stresses caused by loads or the movement of the drying floor, even on uneven ground.
THREATS
In Poland, westerly winds prevail and when they blow when it rains, water hits the walls of the building and runs down their surface. It is easy for it to get under the dimpled membrane, if you do not install a strip for this membrane there first, which will close this space from the top.
The mounting strip for the dimpled membranes insulates the upper part of the membrane, which prevents water flowing down the wall from reaching the foundations, which protects the building against fungal. decay.
INSTALLATION OF DIMPLED MEMBRANE
- Waterproof membrane is used if the building is located above the groundwater table in permeable soils. The dimpled membrane should be placed with the membrane cusps towards the foundation. Thanks to this, the soil is separated from the wall, and the air gap created supports the ventilation of the wall. The dimpled membrane should be placed on clean surfaces, devoid of elements that could damage it. Only defect-free membrane is allowed to be used.
- The dimpled membrane should be joined together on the so-called overlaps with at least 3-5 rows of cusps. As a result, a tight protective barrier will be created. The cusps have been prepared in such a way that they easily fit into each other and fit together perfectly. Overlaps should be used in both horizontal and vertical connections of membranes. The insulation should be selected in such a way as to minimise the number of joints and overlaps in the place of application of the insulation.
- The dimpled membrane should be attached to the surface with special nails or screws, while remembering to use sealing washers. The membrane should be attached to the wall at a distance of approx. 60 cm from each other, always in the centre of the protrusion (i.e. at the point of contact with the wall).
- The insulation must be a continuous and sealed system that separates the building from water. For full protection, it is necessary to use a finishing strip that prevents contamination from penetrating between the insulation and the foundation. Such a strip should be used in a place where the membrane has no protrusions (i.e. on the strip ending the membrane).
ADVICE | 08.12.2021
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