Semi-rigid radial ducting can be up to 60% quicker to install, saving both time & money. Tested by the Building Research Establishment (BRE) for inclusion within the Product Characteristics Database (PCDB), radial ducting offers performance levels that not only are the equivalent to traditional rigid ducting in smaller builds but also exceed these levels in properties with four or more wet rooms. This improved efficiency is due to increased air capacity which reduces noise and lowers duct air loss.