I’m pretty sure aircrete would work fine as a substitute for spray foam or sawdust on the inner insulation layer of a cordwood wall but then I wonder if you could use less mortar because of the structural strength of aircrete and again I wonder if mortar could be eliminated altogether in some kind of cordwood slip form system where aircrete is the only other material. I figure this would only work if the cordwood wall was infill in a timber frame structure and was not load bearing but would these 8”, 12”, 16” or 20” walls be able to support their own weight? Any ideas about this or any other examples of aircrete used in a composite building material would be appreciated. Thank you.
Posts made by CaiRocke
Aircrete with cordwood building?
RE: Building underground with aircrete
Yes, I was kind of thinking that. Not sure if aircrete would make sense as an insulating layer either. 6 inches of ridged foam is recommended and would probably be a lot cheaper but I'm not sure. I love the idea of aircrete for interior walls and south facing exterior walls. Aircrete would also offer good insulation for atrium walls open to the outside.
Building underground with aircrete
Is anyone building underground houses with aircrete, domed or otherwise? The insulative value seems like a good pairing to avoid condensation although, for passive solar, I think it should be behind a wall with more thermal mass which, I assume, the air in aircrete negates. Maybe with a standard concrete slab and aircrete walls a nice balance could be had. Any thoughts about these kinds of considerations or more basic things like aircrete strength and lateral support would be appreciated.