The saga of my house extension runs on! We are looking at a 40m2 roof with a fairly low pitch, roughly 12 degrees maybe up to 14 at a pinch. Any one suggest a solution. I quite fancy a metal roof as per industrial units barns etc. Mainly as slates at that angle may pose problems and I rather fancy the idea. No problems with planning we are not overlooked and it would be in keeping with the roof of the sheds and other bits and bobs around the house. It would have to pass building control though.