WUFI

I just want to confirm that none of the WUFI programs take into account 3-dimensional hygric redistribution of water or vapor content. In other words, WUFI can't evaluate how water condensing on the interior of structural sheathing on an exterior wall would be distributed into an adjacent framing ca...

Aaargh - I was trying to figure out how to install my WUFI Pro 5.2 to a new PC when using my license it is already installed on an older PC, and WUFI support gave me access to WUFI ORNL 5.3 when I asked about doing the re-install of my WUFI Pro. Can you help with this situation? [Removed personal in...

I recently moved my WUFI program to a newer computer, accomplishing this by downloading the most current version of WUFI on my new computer. I have two files (one for a roof and one for a wall on the same building) created at just about the same time; the wall WUFI file opens fine with 5.3 but the r...

the vapor permeability, moisture dependent for kraft paper is a flatline 0.043 perm.

This is counter to what I have heard and seen on the variable vapor permeability of "generic" kraft paper…

Comments/insights?

Peter

Below is a quote form an earlier post and I just wanted to double check that ALL material data on brick (including the North America database) includes the mortar, as stated below. I have often heard that a problem with WUFI 1D is that modeling the brick tells little of the real "story" be...

I just did a series of WUFI PRO (1-D) runs for a cathedral roof for Madison Wisconsin USA). The only way I could get the runs to not have more than 1k convergence failures was to unselect "explicit radiation balance" under Surface Transfer Coefficients, even though when I clicked on "...

For roof assemblies, the snow load can have a significant impact (topside insulation) on the hygrothermal performance of the assembly, particularly in terms of evaluating ice dam potential. Does WUFI Pro account for snow accumulation and reduction based on climate and weather data? I think the answe...