WUFI

I think a renaming of that particular quantity would be a very good idea.

Thanks again for your help.

-James

Thanks Thomas, Your last paragraph zeroes in on my problem. As it is true that many building components are designed to withstand the weather (wind-driven rain), they often have a low water absorption capacity. To the untrained eye, a water absorption coefficient of 0.7 would seem to imply that 70% ...

I wonder if you have any advice about using different rain water absorption values instead of the default value of 0.7 (for a wall)? Is this meant to be valid for any type of wall? If not, why are there no other typical values listed, as is the case for Sd values? Thanks for your help.