Cavity Drainage Membranes
The Oldroyd range of Cavity Drainage Membranes are manufactured in Norway under an ISO9001 / 14001 quality and environmental management system. They are produced from high-strength polypropylene using a special, temperature-controlled manufacturing process. This results in an exceptionally straight, tough membrane which does not suffer from the "banana-ing" and "rucking" which cause problems when installing other cavity drainage membranes.
The Oldroyd range of cavity drainage membranes is based around a range of core membrane products, supplied in rolls of varying sizes