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Recent Q&A
Is continuous insulation really required?
For climate zone 6, the "Insulation and Fenestration Requirements by Component" table of the 2012 IRC (and more recent versions) gives the option of either 20+5 or 13+10 cavity insulation…
Vented Rain Screens & The Heat Rises Rumor
Okay, I know heat doesn't rise. Hot air does. So, imagine if you will, a wall with a vented rain screen, above it an unvented "hot" roof (such that for…
沥青瓦和未放气的屋顶构造tion
For complex roof forms (dormers, valleys, etc.) that enclose living space (resulting in sloped ceilings & knee walls) I'm a big fan of unvented ("hot") roof construction, primarily because it…
Formaldehyde-free I-joists
Is it possible to get formaldehyde-free I-joists and, if so, who manufactures them? Thanks.