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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
by defrost 2y ago
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/ https://research.csiro.au/bushfire/ and https://www.csiro.au/en/work-with-us/services/testing-and-certification/fire-safety 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 https://www.youtube.com/watch?v=KBtawn7IAnI
- sdiupIGPWEfh 2y ago> flame retardant insulation Which are almost definitely known to the state of California to cause cancer.
- defrost 2y agoElsewhere fiberglass and mineral wool insulation aren't regarded as carcinogens. https://pubmed.ncbi.nlm.nih.gov/1947241/ https://pubmed.ncbi.nlm.nih.gov/1947241/ https://mesothelioma.net/fiberglass-connection-to-mesothelioma https://mesothelioma.net/fiberglass-connection-to-mesothelio...
- inferiorhuman 2y agomineral wool insulation aren't regarded as carcinogens A quick look turned up one mineral wool SDS with a Prop 65 warning for formaldehyde. https://www.jm.com/content/dam/jm/global/en/MSDS/200000002057_US_EN.pdf https://www.jm.com/content/dam/jm/global/en/MSDS/20000000205...
- defrost 2y agoFrom 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 > warning for formaldehyde. Trace amounts can possibly sweat out in specific conditions .. which is why you might choose to install with a vapor barrier.
- inferiorhuman 2y agoTrace amounts can possibly sweat out in specific conditions Nah, it's pretty well documented heat and humidity will release formaldehyde. In paperwork filed with the EPA arguing against new limits, an insulation manufacturer trade group cited California's (OEHHA) exposure limits on formaldehyde as reasonable. Those limits are: recently manufactured products contribute no more than 9 µg/m3 of formaldehyde into the indoor air So the Prop 65 warning certainly seems reasonable from here. https://downloads.regulations.gov/EPA-HQ-OPPT-2023-0613-0230/attachment_1.pdf https://downloads.regulations.gov/EPA-HQ-OPPT-2023-0613-0230...
- defrost 2y agoVapor 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.
- Dig1t 2y agoYes 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.
- throw0101a 2y ago> 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-cement-siding/ 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-shingles-fireproof/ https://www.ameriproroofing.com/blog/asphalt-roofing-shingle...