Fully supported zinc cladding composed of elZinc® Rounded Fish Scale tiles. The tiles are made of elZinc titanium zinc, 0,65 or 0,7mm thick rolled to EN988 and ASTM B69-13.
The vertical pitch of the tiles if 250mm, the horizontal pitch is 200mm. Cladding weight is 7,4kgs/m2 with 0,7mm thick tiles. The tiles are overlapped with each other and fixed directly to the wooden substrate (softwood boarding or plywood or OSB sheathing) using three stainless A2 grade fasteners. For buildings that require a non-combustible substrate for the zinc, metal decks are used as a substitute for the wooden sheathing / boarding.
Façade application: The cladding is normally rear-vented behind the supporting sheathing / boarding with a ventilating space of at least 20mm (some countries require more). A simple breather membrane is normally installed between the zinc and the substrate to act as a separating layer.
Roofing application: The roof is either ventilated with a ventilating space of between 50 and 100mm (depending on rafter length) under the substrate, or installed in an unventilated (warm) roof design which includes suitable methods for condensation control. A structural underlay (and draining membrane) is often required under the zinc to ensure air circulation to its underside.