Crop to roof question

[Anonymous]

Hello! I've trimmed the vertical elements to the roof planes. However I have beams in the opposite direction and the first two beams are in pieces now. How can I correct this? I tried with SEO operations but I got the same result. The invisible parts of the cropped elements still interacts with the elements above them.

[Laszlo Nagy · Accepted solution]

This is caused by Priority-based Interactions.
Check the Building Materials used by both the Beams and the element cutting the Beams.
Go to the Building Materials Dialog and make sure that the Intersection Priority of the Beam's Building Materials is the higher number. In that case the Beam will cut the other element.

[Anonymous]

Thank you, Laszlo! It worked perfectly.