Slate Roofs Usually carried out with a 2 man gang, sometimes with an additional labourer. Natural Welsh Slate 3.5-5 mm thick 18.0 m2/day Natural Cumbrian 8-11 mm thick 8.5 m2/day Asbestos Slates 36.0 m2/day Book traversal links for Slate Roofs ‹ Tiled Roofs Up Tiled Roofs › Log in or register to post comments