AAC or conventional “green” — which way to go?
My wife and I want to build a healthy house. We both have chemical sensitives that make “usual” building practices undesirable. Before the market bottomed, we were planning to build a healthy house following BauBiology practices (as much as practical) and using autoclaved aerated concrete for the structure.
We had to delay building until the market improved. While waiting, we learned that AAC talent in our area (Atlanta metro) had pretty much evaporated. As a consequence, we set about designing a house that would use conventional framing and as many no or low VOC materials as possible. We are also planning on a carefully designed HVAC system and energy recovery unit.
We heard that AAC construction was usually about 15% more than standard building. That kind of made frame construction look more appealing–even though it’s still not our preference. Now, my building contacts say material costs for “regular” materials are going through the roof. (So to speak.) As the story goes, building has picked up and the manufacturing capacity is not there to supply the demand.
My question is: Are you professional builders seeing big price spikes? Are they broad and large enough that I should take another look at AAC?
I ask because I have since Identified one and maybe two AAC resources I could use on my project. Thanks in advance for your input.