Dalite Rooflights

Installation of Torch-on Membranes

Demonstration of the installation of the Dalite rooflight kerb and the application of an Icopal Torch-on membrane to form a watertight durable upstand.

Technical Bulletin: ETB101

Icopal have introduced a NEW and improved aluminium cover trim detail for the Dalite Rooflight range where torch applied membranes are to be installed. This will replace the current plastic cover trim as from now on.

The reasoning for this is that the NEW aluminium cover trim is designed to provide some protection of the rooflight from potential torch damage when being installed. The rooflight is delivered with the aluminium cover trim in the horizontal position, which provides protection to the dome top and vent grilles. Once the membrane has been torched on, the trim hinges down and four corner pieces are clicked in, to form the finished cover trim.

Therefore there will still be two options depending upon the waterproofing system to be installed on the rooflight upstand: -

  1. “Cover Trim” – This is the NEW aluminium trim and is designed to be hinged into place after a torch on membrane has been applied to the upstand. Remember there should never be direct heat applied to the upstand, it should only be applied to the membrane.
  2. “Membrane Clamp” – this is the clamp that we have currently been using and should still be specified for use on single ply and cold applied liquid systems, where a “peel stop” is necessary.

For further technical information and installation guidance click here

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