"Dave Liquorice" wrote in message .1...
On Fri, 16 Jan 2004 09:29:36 -0000, PJO wrote:

Providing the roof is intact and straight consider a foam type
under tile job. That will insulate and hold everything in place
BUT is a bitch if you ever do need to remove a slate cos it
effectively glues them all together.

Dont even think about it.

Why not?

Well you quote one reason yourself, when (not if) the roof needs
repairing it won't be a straight forward job and you won't be able to
reuse any of the slates.

The of course when (not if) water does penetrate the slates it can't
dry out quickly and thus increases the chances that the rafters and/or
laths are going to rot.

I used it on a property and not only did it save me a load of time
and money it also saved the roof!

In the short term, yes. But when the roof finally fails it will be a
much bigger and longer job thus more expensive.

Yes. Slate roofs are not watertight, the beams will get wet, and water
will stay there. That would be a worrying scenario.


Regards, NT