An introduction The Clay Roof Tile Council was established in 1981 and is the UK's independent trade association for the promotion of clay roof tiles in refurbishment and new build projects. The Clay Roof Tile Council comprises the five leading UK clay roof tile manufacturers, between them boasting over 1,000 years of production expertise and an investment of more than £50 million in new technology over the last decade. The Clay Roof Tile Council collectively represents over 90 per cent of UK clay roof tile production. The members are: Dreadnought Tiles, Marley Eternit, Keymer Hand Made Clay Tiles, Lafarge Roofing and Sandtoft Roof Tiles. The CRTC grew out of the Clay Tile Committee of the National Federation of Clay Industries, established in 1929. The Council began as a manufacturers' forum to promote the benefits of clay roof tiles, but has grown to become the fully fledged trade association that it is now.