The Liquid Applied Roof Waterproofing Kit (LARWK) “SIKAFILL-420 EXTREME” 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.

SIKAFILL-420 EXTREME is a one component liquid applied roof waterproofing based on water dispersiable polymers, consists of a water dispersiable styrene – acrylic copolymers, elastomeric with an internal reinforcing mesh; which once polymerized conforms an elastic lining, in form of a layer completely bonded to the support (steel, concrete, mortar, ceramic and extruded and expanded polystyrene (XPS-EPS)). The minimum layer thickness of the assembled membrane has to be 1,2 mm.