ESHAVENT

The ESHAVENT membrane is an adhesive ventilating and at the same time waterproofing bituminous membrane (asphalt sheet). It is produced from SBS modified bitumen (-15oC) and special additives, which give the membrane adhesive properties and therefore the ability to be easily welded to the properly shaped substrate, without the use of a torch. 
The ESHAVENT membrane has a total weight of 2.0 kg/m2, fiberglass reinforcement, quartz sand top coating and bottom coating of fully glued perforated aluminum foil or perforated glass felt. The holes in the foil or fiberglass allow the adhesive bituminous mixture to stick to the substrate in spots.
This particular construction allows the ESHAVENT membrane to function, firstly, as a ventilation layer, because it allows the circulation of water vapor under the part of its surface that is not attached to the substrate, and secondly as a waterproofing layer.

APPLICATIONS

  • As an autonomous waterproofing system, because it is a ventilation and waterproofing layer at the same time. Of course, it needs some protective material on it because it does not have a self-protection coating.
  • In waterproofing repairs.
  • As a first waterproofing and ventilation layer, in a waterproofing system with two bituminous membranes, for waterproofing flat and slopinf roofs.