Hi, I want to install a Velux M06 in a roof that has a pitch of 11 degrees. The window is spec'd at 15 degrees. Has anyone ever done this or has any advice as to what to do? I could build up a kerb to increase the slope but flashing becomes tricky. I'm an engineer and when we design stuff we make it so that it can cope with the worst case and still have some headroom. The window is going to be install in Hampshire (not near the coast or in a exposed position). I imagine Velux have designed thair windows so that they could be used in the shetland isles etc.. Anyone think I can get away with installing it at 11 degrees? (I know it would invalidate any guarentee.