Thermafleece uses wool from British hill sheep to create an exceptionally efficient thermal building insulation material with excellent acoustic attributes for use in both new-build and refurbishment projects, which is absolutely safe to use. Thermafleece also has British Board of Agrément (BBA) approval, meaning that it fully complies with Building Regulations and offers the customer an environmental and technical specification that can be used in a wide variety of roof, wall and floor constructions.