"No Roof Zone" not functioning properly

[Adeelos]

I put in a no roof zone, and a number of areas where I put it show the zone as applied, but the roof is not actually removed. I know that mountain areas can't completely have the roof removed, but it used to be the roof could be removed anywhere you put the zone down. The attached picture shows what I'm talking about.

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[Thunder Rahja]

No roof zones apply for constructed roofs only. Mouse over the area that you expect the roof to be removed from and make sure it's not a rock roof.