this post was submitted on 14 Jun 2023
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It's a house from the early 70s in France.
There was almost no insulation. First rules to improve that started around 1974.
How does it work in Australia? Does gouv try to help people to improve that in old houses?
I guess it would be great for summer as I think it's pretty warm there.
I don't believe the government has any running initiatives to improve energy ratings on old houses, but there are certainly standards for new builds like you would have today. Generally speaking, because the summer sun disproportionately heats up our metal roof (and our ceiling cavity is not insulated), it will get to around 2-3 degrees hotter inside than it is outside, if no climate control is used.
The advantage on a sunny winter day, is that it can be 10 degrees outside, and 17 inside if we're lucky :) (but of course that heat vanishes the moment the sun goes behind the trees.)