This is a question from Australia, (I think I’m the only Australian member of BPA).
Our national building code is being updated in 2022. We currently do not address air tightness in our building code and the ‘code writers’ are reluctant to include it.
They state, "Unfortunately, air leakage testing of new dwellings in Australia has not been sufficiently extensive to develop an evidence base sufficient to allow the development of new regulation."
Does anyone know of any studies that may be available regarding air tightness of the building envelope?
Thanks, man. It's Aloha Friday and this is contributing to good vibes. Working on a new blog today! Thank you for your kind words.
p.s. plenty of Hawaii is "mild." but my part is getting down into the 40s at night and we don't have any heat LOL
Really intersting points being made inthis discussion. Hawaii is on my list of places to visit one day.
Much like Hawaii most porple outside of Australia think that Australia is hot. We actually have tropuical climate, deset climate, and temperate climate. A few hours from where i live we have ski fields, (yes we have snow). Our large intertior desert land mass affects our coastal climate in ways that differ from comparable climates elsewhere in the world.
The application of a 'one size fits all' approach never works and can tend to make things worse.
Good luck with your struggle I Hawaii. I hope good science and common sense will prevail.
In response to the chicken-and-egg conundrum, one approach that we used with success in Georgia was to request information from the manufacturers and distributors of blower doors on sales in GA. We used this as evidence that there would be enough professionals available to do the testing if the code was adopted. You might try asking and see what they come back with. It's obviously in their best interest to have these codes adopted as well.