Convergence and Rain Absorption Failures

[pfisterscott]

Are calculations with convergence and rain absorption failures useful? Or must there be zero failures in both these categories to have useful results?

[Manfred Kehrer]

Are calculations with convergence and rain absorption failures useful? Or must there be zero failures in both these categories to have useful results?

Dear Mr.Pfisterscott,

the calculations can be useful. If have one ore more convergence errors, you should take a look to the balances. If they if don´t match you might have a useless results. Please refer also the the online help system (dialog:"status of last calculation")

[Michael Hurd]

When checking the water balances due to the presence of excess convergence failures, is there an guide line for how much difference these balances can/should have before becoming concerned about the validity of the results?

Also, I have noticed that when modeling the air space created by a 6" steel stud I have to use 3 layers of air to approximate the 6" air space - the multiple air layers seems to create an increase in covergence failures as well as widening the gap of the water balances - is this to be expected? Should I model the 6" air space as the largest air space available in the program versus using multiple air layers to approximate the 6" of air?