Breathable roofing membranes (BRM) have been used for many years, with the benefit of reduced heat loss and not having to incorporate ventilators making them more popular. They are suitable for use as a full supported or unsupported underlay beneath tiled or slated pitched roofs, in warm or cold non-ventilated and cold ventilated roofs
Building regulations have encouraged the development of more energy efficient building construction techniques. However, some species of UK bat now rely predominantly on man-made structures for shelter and roosting and research is suggesting that BRMs have a negative impact on bats. [Read more...]


