On 05/06/2021 17:15, Chris Bacon wrote:
On 05/06/2021 12:03, Dave Plowman (News) wrote:
Anyone give a rough guide as to costs - felt, membrane, glass fibre?

I have been thinkig about flat rooves. I'd go one piece EPDM. Call up a
few people and ask about a price for the job.

Quite easy to DIY, but whoever does it will have to overboard
the existing plywood decking with another layer of ply or
OSB3 because the water-based adhesive needs a clean substrate.