I'm at the design stage of a loft conversion. I'd really like a roof light over the staircase but it's a flat roof (dormer) and the builder has suggested a roof light that doesn't open and I'm worried it would look dirty all the time. Would it?
It would be seriously difficult to clean from the outside (would a window cleaner go up on top of a dormer loft conversion?). The alternative is a window that opens just a little bit (doesn't spin around - can't use that type on a flat roof without fitting a kerb thing that would need planning permission) and costs an extra £400. I'm not even sure if I'd manage to clean the window through the gap.