On Fri, 17 May 2019 05:08:18 -0700, George Miles wrote:

you may as well put in lots of insulation when its open.

The stuff they're trying to flog me is already insulated. It says here
from their estimate and I quote:

"The flat roof area between the two pitched roofs will be replaced by
Polyroof Protec system. The existing roof will be stripped back to the
rafter line, reinstated with new Polyroof approved 18mm board, vapour
control layer, 120mm rigid insulation and Protec fibreglass system on
top."
Supposedly guaranteed 20 years which is a lot longer than I'll live if I
have to pay £5,700 for them to fit 1.2m x 6m of the stuff.