Laying zinc sheets on a continuous support is part of the traditional roofing method. In order to ensure the durability of VM ZINC®, the support must meet the following requirements:
Geometrical continuity: The support is considered to be continuous when there is no more than a 5 mm difference in height (flush tolerance) between its components at their junction. There should be no protruding elements on the support, e.g., screws or nails that could damage the underside of the zinc. The roofing company responsible for the installation of VM ZINC® must check that these minimum requirements have been met.
Structural conformity of the loads for the project: the building design team should make sure that the loads for the project are compatible with the performance of VM ZINC® systems. These loads include, in particular, the weight of the system, live loads, loads due to climatic constraints as well as the effect of wind.
Physico-chemical compatibility of surfaces in contact with zinc.
The geometric continuity, structural conformity and physico-chemical compatibility of the VM ZINC® support should be studied at the design stage of the roofing or facade complex in order to select the appropriate VM ZINC® system.
