Zone problem

[Anonymous]

Hello,

i'm having problem with zones on my model. I don't understand why Archicad can't sum area in defined zone (it displays 0m2). This only happens on top floor (roof is above this floor). In stories below there is everything O.K., area is calculated properly.

[Anonymous]

This may help, look under: >Options, >Project Preferences, Zones. You will find rules for reducing the zone's area depending on walls, columns, roofs, etc.

[Anonymous]

Thank you Mark, that did the trick