They can also be used as vertical rain water drains.
They have a smooth flange to improve adhesion to the membrane. The shank is 500mm long and is capable for crossing walls of up to 45cm. They are compatible with prefabricated TPO membranes.
To improve adhesion of the connector is should be carefully cleaned especially where there are traces of oil.
The flange has some holes to improve mechanical fixing to the reinforced concrete and to the wall.
The mechanical properties are maintained in the long term.
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