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Tefond Drain (600g membrane - geo-polypropylene knit) is a protective and separation layer. It is an extruded high density polyethylene (HDPE) membrane with a mechanical edge-joining system.
Tefond, thanks to its special structure and form, when used outdoors, covers the bituminous insulation layer, keeping the room dry and improves the thermal insulation of the walls of underground rooms:
Tefond can be successfully used instead of the traditional concrete undercoat. This solution is technically advantageous and noteworthy for economic reasons. Tefond is laid after excavation (to the level of one or two centimeters below the foundation base), leveling and compacting the soil. The membrane can be installed at any time, in any weather. Resistance to decay and load allows it to be used in any type of soil and in different material working conditions. The savings obtained by using Tefond instead of traditional methods exceed 60% in total. In addition, Tefond is resistant to chemical compounds, is an excellent barrier to plant roots and can serve as a separation layer for various materials.
After laying, Tefond can be covered with all types of floors. Its use improves thermal and sound insulation by approximately 14 dB.