WUFI

Good point about theory 2. I added the driving rain and an air change in the fiberglass, then maxed out the initial RH, and internal humidity model (EN15026). It seems possible that if the wall was soaked before the fiber-cement board was installed, water could be in the fiberglass cavity for multip...

Ah, ok, I have about 6 segments when I click on the layer, so that seems good to go. Thanks. I've been coming up to speed pretty well, minus the perm-inch mix up. The tool has been pretty interesting. So far, I've been doing sensitivity testing on my condo wall assembly. I found some condensation th...

Ah, ok, thanks. Got it. In the database it says I need to use 1mm for the SBP options. Is this the case, or should I use 0.008 inches for the material thickness?

Hello, great program- Can you tell me why the Spun Bonded Poly (SBP) entry in the North American database has a perm-in value of 0.39? Based on typical manufacturer data this value is much greater than 5 perms. Tyvek Housewrap is about 50. The same goes for the 0.1, 1, 5, and 10 perm entries. Fiberg...