WUFI

Greetings

I´m trying to model a window and stumbled upon this weird looking spot with high moisture content (see image, red ring).
The spot lies within an air layer and is "all alone" you could say - is it condensed water? it comes in peaks - one moment it is there and the other moment it fates away.

I would have a look at the RH. It's probably an artefact because of it's moisture storage function.

Regards

veitner wrote:I would have a look at the RH. It's probably an artefact because of it's moisture storage function.

Regards

I checked the RH in that spot and attacted the image. It clearly reaches 100 % so it looks like it might be condensated water.

And by artefact of the moisture storage function you mean what? It is happening in a air layer so it has no storage function attached to it.

Best regards

In WUFI every material needs it's moisture storage function. In case there is none defined WUFI assigns it's internal moisture storage function.
I meant artefact because the moisture storage of air is somewhat artificial.

But indeed your air layer shows a somewhat increasing RH over time (I thought the layer is tightened). Condensation could occour. No idea about the amount - but it should be possible to figure that out. But first you should find out why the R.H. increases in this "all alone" area.

Regards

veitner wrote:In WUFI every material needs it's moisture storage function. In case there is none defined WUFI assigns it's internal moisture storage function.
I meant artefact because the moisture storage of air is somewhat artificial.

But indeed your air layer shows a somewhat increasing RH over time (I thought the layer is tightened). Condensation could occour. No idea about the amount - but it should be possible to figure that out. But first you should find out why the R.H. increases in this "all alone" area.

Regards

What do you mean by thigtened? closed air space? Maybe it is just a flawed design? and the reason for the location is a low temperature..

avp081090 wrote: The spot lies within an air layer and is "all alone" you could say

Perhaps I got it wrong.

It should only vary with temperature if there is no connection (zero moisture transfer) to adjoining sections. But it increases. Ongoing decline of temperature?

Regards