Ardex WPM 188: 3.5mm Garden Tanking APP/SBS Bitumen Membrane (Shelterbit Garden Membrane) a 3.5mm thick combined reinforced (Polyester & Fiberglass) with Root inhibitors to prevent damage from plant roots.

Ardex WPM 188 has been designed for waterproofing landscape and planter box areas. It also used in single or multilayer systems in horizontal or vertical tanking applications, this membrane is also suitable for colder climate conditions.