Our own member Wayne spoke on condensation in modern buildings, especially residential last week.
This has become a problem with the introduction of lightweight and engineered timbers instead of the old growth eucalypt timber, and also the higher requirements for insulation.
The latter has moved the dew point in walls, roofs and floors, so that moisture collects closer to the internal surfaces. When coupled with the lesser durability of modern timber framing, a real problem is occurring in both excessive condensation, and consequential rotting of relatively new timber framing. The Tasmanian Government has recognised this problem, which has essentially been caused by requirements of the National Building Code, and has sponsored research to address it, and take recommendations to the national body.
He also discussed what measures we can take in the meantime.
A very informative and interesting talk from, once again, one of our own.
Wayne mentioned a guidance/advice booklet last week and here is the link for you all to download the PDF.