This item is a two-part trim that clamps the membrane into place and creates a step into the gutter at the same time.
The benefit of these is that they create their own seal on the roof surface, negating the need to install a timber perimeter upstand.
The Gutter backplate must be installed prior to the membrane, and the top of the plate must be flush with the deck. The EPDM will overhang approx 50mm. The front plate is then pushed under the hook of the backplate with the membrane between the two. This will then clip into place to form a smooth finish.
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