Thanks, yes I think that's why they've been used on my place - 17.5 degree pitch.Wessex won't win any beauty competitions, that's for sure. They aren't the cheapest either nor are they much fun to work with/on. They are designed for low pitch situations so are essential for those roofs with very shallow pitches.
Still are they better than a flat roof? Would value your opinion as you and your guys do top quality work