AT Imper Step Visco Bit consists of a polyurethane resins, bi-component, elastomeric without reinforcing mesh (only in singular point: evacuations, upstands…) internal layer; which once polymerised conforms an elastic lining, in form of a layer completely bonded to the support (concrete, mortar, ceramic). The minimum layer thickness of the assembled membrane has to be 1,5 mm.

The Liquid Applied Roof Waterproofing Kit (LARWK) “AT Imper Step Visco Bit” is designed and installed in accordance with the manufacturer design and installation instructions, deposited at the IETcc. This LARWK comprises the following components, which are factory produced by the manufacturer or a supplier.