Roof Modelling

Somthing goes wrong with the new implementatin:
Look here:
http://map.f4-group.com/#lat=49.5463139&lon=11.0283203&zoom=19&ui.showMenuPage=true&ui.discoveryOpen=false&menuPage.type=search&menuPage.id=Tennenlohe&camera.theta=66.822&camera.phi=-42.399

http://www.openstreetmap.org/browse/way/245633207
Roof is there simply - gabled…

cmif4 said in another topic that they use roof:orientation.
But when there is a problem with square buildings, we should have a tag to define it right.
f4map also handles roof:slope:direction=float, but they don’t let the direction snap on a side. Imho that is not good. And I don’t know, if any other map handles this tag.