CUT.

As far as the roof is concerned, have you thought about sprayed foam
insulation? I have to admit to having had something to do with these
folks
on a commercial basis a while back but they do claim that it's cheaper
than
having a re-roof and there's the benefit of insulation and a permanent
fix
for the tiles.


If you watched any consumer advice programmes you would avoid spray on
insulation
at all costs! Keep well away.
Get your local builder to do the job and use what he suggests.

NO!! don't get your local builder to do the job. Get a recommended roofing
contractor.

As far as spray on, it only holds on the underside of the slates or tiles on
in the roof space. When the exposed bottom half falls out where does the
rain go.
From professional experience getting a tile or slate out, of a sprayed roof
is a nightmare. You have to go inside and cut away all the foam about 18"
all round to release one tile or slate. If you ever have to strip a roof all
the slates or tiles are covered in the crap. Everything is stuck together,
spars, lath's and outer covering.

From a professional, KEEP WELL AWAY FROM SPRAY ON

By the way any roof either new or re roofed must by regs have a vapour
barrier underlay.