Why isnt AAC(Autoclaved Aerated Concrete) used more in construction?

Cost is higher than framed walls

Infrastructure. Autoclaves are expensive.

Probably has more to do with the ICF forms investment that a concrete place and finish contractor has to make and the uncertainty that it will sell to homeowners and builders.

This may be a dumb question but how heavy would this be? Would it work in south LA or would it cause the house to sink slowly?

There is one being built on Old Jefferson Highway between Antioch and Highland.

It is a different skill set, cost more and many people just don't know about it. Marketing. They have to sell the architects and home builders associations.

Also windows and doors are different dimensions which add cost that many people don't see.

'spensive

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Has anyone on here used AAC?

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We did two houses with this stuff years ago. One was south of Houma and the other was a camp down in the Hackberry area. Cant remember the actual cost per sqft, but it was considerable more to build. Labor alone for electrical and mechanical are considerable more. It does have its benefits (sound, insulation value) but not enough to offset the initial cost of construction.

I remember asking the owners in Houma why they wanted this crap and she said because when it floods, you can simply hose out all the filth, repaint and your good to go.

Structurally it is weaker than grout filled CMU or even CIP concrete. Also falls apart when there's water leakage or moisture infiltration. We had a building that was exposed to freeze thaw cycle and the AAC bricks were just really deteriorating from water exposure. Wood does something similar but much less pronounced.

OP, make sure you verify the slab system you are going to use if you go this route. A conventional slab system may not be sufficient enough.

What are the costs of this relative to CMU walls?