[Toshi]

Meh. Thermal mass but no insulation there.

I like my stick built home. 2 x 4" walls x 2, each insulated with an air gap between 'em. 9.5" thick, R-38. R-50 in attic. Double pane windows are the weak spot but light is good.

 

[iRider]

Meh. Thermal mass but no insulation there.

I like my stick built home. 2 x 4" walls x 2, each insulated with an air gap between 'em. 9.5" thick, R-38. R-50 in attic. Double pane windows are the weak spot but light is good.

You have heard about autoclaved aerated concrete, or? Best of both worlds.

 

[Toshi]

You have heard about autoclaved aerated concrete, or? Best of both worlds.

Concrete with holes in it, I'm guessing? Nice. SIPs are another option that I was eyeing before opting for this house.

 

[Changleen]

Be careful with SIPs. We’ve had some issues in NZ with them turning out to be unfit for purpose after a few years of real-world use. They can be awesome and Northern Europe does this well but you can’t just chuck them in, they need specific/best practice handling and installation to be effective and last the distance. Rotten SIPs are hideously expensive to fix.