Let's talk different building systems or methodologies. Probably 99 percent of us live in a standard stick built structure. If you were going to build from scratch, would you choose something different? Share your ideas, stories and links here, as well as what climate zone you live in. Common: 2x4 or 2x6 framing w/ choice of insulation, sheathing and exterior finish Masonry block Not as common: ICF SIPS SCIP Log* Timber frame Cellouse filled double framed wall Foam/normal framing hybrids Fringe: Straw bales Earth bags Cob Cob/cordwood combo Tire Shipping containers Tauntaun Construction/Design elements: Passive, Passive Solar, Net Zero/Zero Energy/PEH, HERS index, superinsulated and airtight, or loose and drafty, etc? *I've done the log thing before. Don't think I'll go back.