There is a 4 ft extension to the ground floor of my house. Its flat roof is leaking. It looks awkward to repair because the extension has a parapet around it and the edge of the flat roof has lead flashing all the way around, and because the outer edge, just behind the parapet, is shaped into a trough to conduct the water along to an outlet. Very fiddly indeed, I'd say. And the flashing is old and I can already see a split in one place.
In order to avoid the repar, both now and in years to come, I'm contempating having a sloping tiled roof put on, over the extension. The dimensions (looking diectly downwards as in a plan drawing) ae about, 5ft x 15ft. Does anyone have a clue what a builder would charge to construct that? (So I can decide whether to DIM or just try to repair the flat roof.)
Thanks,
John J