New Roof?

You have decided to have the roof replaced on your house. The rules have moved on now. We would like to prevent as best we can condensation in the roof space. You create a different environment in the roof space when you install new roof sheeting and membrane (the blue stuff in picture). The new rules are to help your roof space breathe with vents and instead of that blue paper - ask your installer to put in vapour permeable membrane. Yes it costs a little more however it allows your roof to breathe. Tasmania have new rules about condensation look for the booklet online.

https://cbos.tas.gov.au/__data/assets/pdf_file/0004/463630/Condensation-in-buildings-guide-2019.pdf