Comment on anons brother has some strong opinions
ZILtoid1991@lemmy.world 9 hours ago
Autist here, while brick houses are nice, I actually own a 100+yo one, they’re also not the most ideal material for anything bigger that a midrise.
Wanted to have better insulation for shits and giggles? We have a tool for that: putting proper insulation on the concrete.
frezik@lemmy.blahaj.zone 2 hours ago
Some people have some real bad ideas about insulation. No, the air gap in your brick building isn’t good. Air gaps are cheap and easy, not good. They do belong in certain strategic locations, but they can’t compete with the R-value of filling the space with blown fiberglass. Not even close.
Windows, too. The best, most energy efficient window on the market is at least 3 times worse than a few inches of blown fiberglass. Industry marketing has confused customers on that one.
terry_jerry@sh.itjust.works 1 hour ago
Yeah, the intuition of wanting air in the cavity is a correct one. it’s just that what we actually want is a vacuum. This creates a thermal gap a d is why cups with vaccum keep shit warm/cold awesomely. We cant, realisticly achieve this so instead we shove shit into the walls to protect or little air gap from being tampered with. Fiber glass works OK, but foams work better.