On 15/11/2019 14:50, The Natural Philosopher wrote:
On 15/11/2019 08:11, Tricky Dicky wrote:
On the internal walls dry-lining as you suggest is not a problem but
on the single brick exterior walls you would have to be sure there
was no damp penetration from the outside.

Wrong. The plasterboard contains a vapour barrier. It is designed for this.



Only some variants do, intended for upstairs ceilings.

Most PB is not water vapour impermeable.

As long as there is a DPC in the wall, I would seal the
outside with breathable water repellent sealant intended
for this purpose.