We've had a builder provide us with a quote and they're due to start on Monday. I researched the vent 3 and I believe it's the high performance which is blue on one side that they will be using so not the light or classic version.
The main concern is how breathable it really is I believe they...
Hi All,
we are having our roof replaced due to a number of issues.
with the old roof we had a lot of problems with condensation - we don't know if this is down to the insulation we added as we did this as soon as we moved in!
The new breathable membrane to be used is Vent 3 Cromar, I've heard...