For the Norwegian (and other scandinavian/cold countries) it would be handy to have the ability to assign outside and inside areas of a roof.
We tend to have a lot of insulation, but there is no need for insulation on the outside. If the roof tool had an extra feature where you could draw a fill/area to designate a separate zone for a separate composite, the roof tool would be much more useful. As it is, using two separate roof objects is suboptimal.
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