ARDEX WPM 114 is an APP (Atactic Polypropylene) plastomeric type modified bitumen vented base sheet, consisting of a specially formulated bituminous compound of distilled asphalt modified with selected high-grade viscoelastic polymers.
ARDEX WPM 114 is installed as a vented base sheet in multi-layer waterproofing systems. It has been designed to be used in situations where substrate vapour diffusion is required.