In message , Autolycus
writes
While investigating the options for replacing the 35 sq metres of
asbestos cement roof that blew away in Saturday's gale, I have
discovered just how expensive asbestos disposal has become. One local
firm has quoted £50 per sheet if I took it to them, or £850 for a skip.
Derbyshire County council will only accept 2 square metres at a time at
their sites.

I'm hoping the insurers (Zurich) will pay for the disposal of the
smashed sheets and the remainder of that roof which is now in a
precarious state, but I have another building of around 120 square
metres which is structurally sound but has a number of leaks in its
big-6 asbestos sheets as well as quite severe condensation problems on
the underside of the roof. I don't relish removing the existing
sheets, and I certainly don't relish paying for their disposal.

Does anyone have experience of "oversheeting" with steel, onduline, or
other materials? I believe it can be done directly onto the sheets,
having first removed all the nails, or onto battens.

Don't forget that with e.g. corrugated steel, you will be liable to get
condensation from the roof dripping everywhere unless you have some
cunning scheme to overcome this
--
geoff