robgraham wrote:
On 19 May, 17:15, "keith_765" wrote:
"robgraham" wrote in message

oups.com... My wooden workshop is having a major make over - the framing is having
to be patched/rebuilt and weather-boarding totally replaced.
Are there any downsides to putting a membrane between the replacement
weatherboarding and the frame? The pluses would be draught-proofing
and protecting the frame but might there be something I'm missing.
Thanks
Rob
Tyvex underlay

Why these materials - why not builder's polythene ?

Rob

tyvex is semi-permeable. Breathes.