What am I googling for to find the solution to this:
Currently a gently sloping slate roof over a utility room
and I'd like to build up off its wall to add an adjacent new roof to an extension (mock-up for illustration only):
My query is what to do where the sloping slate meets the new wall? Water can only come towards me on this view, as behind is the main house and there is existing drainage on this side.
Currently a gently sloping slate roof over a utility room
and I'd like to build up off its wall to add an adjacent new roof to an extension (mock-up for illustration only):
My query is what to do where the sloping slate meets the new wall? Water can only come towards me on this view, as behind is the main house and there is existing drainage on this side.