On Sat, 05 Jun 2021 12:03:44 +0100, "Dave Plowman (News)"
wrote:

Heavy rain all yesterday shows my flat roof is leaking again. It's felt,
and about 30 years old. Been 'fixed' a few times, but time to replace.

The deck is good quality ply, so hoping that is still fine. All the
flashings etc lead. It was designed by a decent architect, and installed
by his recommended builders and roofers.

Size is approx 3.5 x 4 metre

Anyone give a rough guide as to costs - felt, membrane, glass fibre?

Access is easy so no scaffolding needed.

At my age, even felt done well is likely to see me out. But I'd consider
something better - if I can afford it.
At the beginning of 2020 I had mine redone.
About the same size as yours, but decking was chipboard and totally
fu**ed. Also 3 stories up so a couple of £100 worth of scaffolding
needed.
New roof, multi layer felt, hot tar on OSB3 boarding, cost about
£2400.