Error in a roof constuction!

[WUFImem]

I have a construction which is expected. After the change with an additional vapor control layer, the simulation stops after about 4 months. The water content increases to 20 times and remains to the end at this level.
You have recommended to me in another simulation Computational Parameters - Enhanced - Relative Humidity - URF the value of 0.7 reducing to 0.3. Unfortunately it did not help in this simulation. There are other ways to bring the simulation successfully to expect?

[Christian Bludau]

Hello,
this is due to convergence problems, please check out for example this topics:
http://www.wufi-forum.com/viewtopic.php?f=15&t=494
http://www.wufi-forum.com/viewtopic.php?f=15&t=789
Christian