Quick simple question.... I'm preparing drawings for a loft type bedroom, which will have a window in the end gable wall. The pitch of the roof is approx 32 deg, and I will be having a 'feature' window made to follow the pitch of the roof, i.e. a kinda triangle shaped top. However, because I need to have a ridge beam to support the roof (it's a new extension), it will not be possible to have the ceiling meet at the top of this window, it will have to have a horizontal flat. Hope this makes sense! My question is, what is the minimum width this flat section can be, I'm thinking from a point of view of being able to plaster skim it? 300mm? 200mm?
Thanks!
Thanks!