Steel frame, flame retardant insulation and cladding, rammed earth, .. these are all options.
Flammable trees well away from a leaf free clean guttered (or no gutter) house are also no compromise requirements.
See: https://research.csiro.au/bushfire/ and https://www.csiro.au/en/work-with-us/services/testing-and-ce...
for the rabbit hole of Australian Bushfire housing certification and testing.
Burning Down the House: Trial by Fire CSIRO- https://www.youtube.com/watch?v=KBtawn7IAnI
> Steel frame, flame retardant insulation and cladding, rammed earth, .. these are all options.
Don't even have to go that far.
Wood framing is fine: make your cladding stucco would do a lot (or brick). You can even have siding as cement-base stuff is available:
* https://www.jameshardie.com/blog/siding-types/what-is-fiber-...
You could have metal or clay roofing, but shingles with a Class A rating is available as well:
* https://www.ameriproroofing.com/blog/asphalt-roofing-shingle...
> flame retardant insulation
Which are almost definitely known to the state of California to cause cancer.
Elsewhere fiberglass and mineral wool insulation aren't regarded as carcinogens.
https://pubmed.ncbi.nlm.nih.gov/1947241/
https://mesothelioma.net/fiberglass-connection-to-mesothelio...
mineral wool insulation aren't regarded as carcinogens
https://www.jm.com/content/dam/jm/global/en/MSDS/20000000205...
From your link:
SECTION 11. TOXICOLOGICAL INFORMATION
IARC No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.
ACGIH No component of this product present at levels greater than or equal to 0.1% is identified as a carcinogen or potential carcinogen by ACGIH.
OSHA No component of this product present at levels greater than or equal to 0.1% is identified as a carcinogen or potential carcinogen by OSHA
Trace amounts can possibly sweat out in specific conditions .. which is why you might choose to install with a vapor barrier.
Trace amounts can possibly sweat out in specific conditions
Those limits are:
recently manufactured products contribute no more than 9 µg/m3 of
formaldehyde into the indoor air
https://downloads.regulations.gov/EPA-HQ-OPPT-2023-0613-0230...
Vapor barriers limit human exposure, it has to travel into the occupied spaces to be an issue, then linger.
It also has to be the type of wool that has been treated, etc.
Yes absolutely, and as another poster pointed out, earthquake codes exist. Metal framing is probably a bit easier to adapt to the same earthquake codes that timber framing has.