# Error: ** Severe ** ProcessSurfaceVertices: Divider area exceeds glazed opening for window...

During the simulation several errors of this type occur: "The area of the divider exceeds the glass opening for the window". Here is an example using one of the windows:

ERROR:

** Severe ** ProcessSurfaceVertices: Divider area exceeds window opening for window WAN_C11WAN
** ~~~ ** Window surface = [4.38] m2, dividing area = [23.40] m2.

PROOF:

The area of the window is: 9.75 x 0.45 = 4.38 .... Ok The area of the dividers: 0.4 x 0.45 x 6 = 1.08 (the vertical dividers are those parallel to the sides link text

To get the 23.4 m2 that the program gives, I must multiply the width of the divider for the width of the window instead of the height, that sounds wrong to me...

Area according to the program: 0.4 x 9.75 x 6 = 23.4 ...

So, I must enter the vertical dividers (parallels to the sides) like horizontal dividers (parallels to the top)? These is a program mistake or I am wrong??

Divider area is calculated as follows.

Since Surface.Multiplier = 1, for HorDividers=0, VertDividers = 6, DivArea = 1.08 (as you correctly calculated). and for HorDividers=6, VertDividers = 0, DivArea = 23.4. (seems incorrect and is what E+ is calculating) Debugging idf with E+ source code or posting link to actual idf will help in seeing what is going on inside E+.