How would you change the building codes

[microbubble]

@enipla

We would need either completely different building practices, or new and better insulation.

A standard 2x6 wall can take 5-1/2 inches of fiberglass insulation. R-19. You can’t just stuff more insulation in there (compressing it) and get better insulating performance. In fact, it becomes worse.

Well, yeah, but 5 1/2" of pink foam board insulation is R-40 or so.

[Patty_O_Furniture]

My building code is 6739, which I can never remember when I’m in a hurry. I would change it to 2419.