PCPaul wrote:
On Wed, 09 Jan 2008 20:21:34 +0000, Andy Champ wrote:

Dave Liquorice wrote:
On Tue, 8 Jan 2008 19:54:23 -0000, Michael Shergold wrote:

Have you investigated Renotherm? http://www.renotherm.co.uk/ I'd be
interested to hear if anyone has used this company or similar.
I wouldn't touch it with a barge pole.
If you put that into your loft I wouldn't buy your house.


OK, I'll bite. This stuff has been around now long enough to show any bad
effects - have any been seen in the flesh?

My (rented) place has the attic done like this. Seems OK so far, but then
again I don't know how long it's been in place...


I presume the issue is condensation/rot in the timbers?


Yup.

Any water that gets under the slates into the beams will dry very slowly.

The whole key to damp control, is either to keep it ALL out, or let air
circulate to dry out any that gets in.

this product does neither. Nor will ity be easy to replace any damaged
roof slates etc.


Essentially 30 years on, the whole roof will start to sag and slip, and
will need total replacement, like as not.

Thats may not be an issue today, but 20 years down the line, some
surveyor is going to knock off 30 grand (or whatever a new roof costs)
off the asking price,..