The fifth building material? Maintenance of ETFE constructions (maintenance des verrières gonflables en ETFE )

As alternative for glass, ethyltetrafluoroethylene (ETFE) is often used to form pneumatic structures of "cushions" / These lightweight constructions can be used for rooftops, canopies or other architectural structures

ID: 1537243
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(PresseBox) - The ETFE is a modified copolymer which is extruded into a thin film. The material is ageing resistant, self-cleaning and transparent. It is unaffected by UV light, atmospheric pollution or weathering and extensive testing has shown an anticipated life expectancy in excess of 40 years (used e.g. for green house cladding). The material is

Single layer constructions are supported by a cable net. Cushions are formed from multiple layers of ETFE. The foil is extremely thin: each layer is between 50 and 300 ass, is 100% recyclable and is self-extinguishing.

Despite these advantages of ETFE films there are some problems appearing according to the low thickness of the material. Usually cushions are stabilized by inflating with dry air. Especially on rooftops birds love to land there and peck at their food to break it up before swallowing. The bigger the bird the more powerful their pecking action will be. It is widely known that ETFE roofs and Canopies installed nearby or close to stages (e.g. Allianz Arena Munich) or the sea suffer most of this problem. This is because Ravens, Crows or Seagulls use the ETFE roof membranes as an ideal platform to stop and peck at food rubbish or shellfish, crabs and the occasional stolen chip. This often vigorous and powerful pecking action causes punctures and tearing to the ETFE Membrane, opening holes where the inflating air can leak. This causes higher operation cost or the possibility of fatal destruction of a complete cushion.

Fortunately the ETFE material is resistant to tear growth so that it is easy to repair such holes and tears on-site by using a special adhesive tape from CMC Klebetechnik. This transparent tape is made of the same material as the cushion itself: an 100

This is why CMC 77700 ETFE adhesive tape is ideal for repairing of damages (minor tears or holes) or reinforcement e.g. under supporting cables of single layer constructions. No need to replace individual elements of a roofing construction can save a lot of money. And due to the transparency of the adhesive tape, repairs are nearly invisible. Maintenance with ETFE adhesive tapes from CMC Klebetechnik reduce costs, time and effort for repair.





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Date: 06/13/2018 - 09:58
Language: English
News-ID 1537243
Character count: 3620
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Firma: CMC Klebetechnik GmbH
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