FONDALISSE levelling strips are a membrane specially designed to create an airtight barrier and prevents capillary action at the joint between the wooden studding plate and the brickwork. It is mainly used in constructions with wooden frameworks. This safe, sanitary membrane is made from high-quality materials and can be applied to both horizontal and vertical substrates. FONDALISSE polyethylene levelling strips are light and easy to apply. Their embossed surface prevents shearing and increases their adhesive properties.FONDALISSE meets the requirements of UTDs 20.1 and 31.2.