Binding a Beam to a Roof
You can bind a beam to a roof using a coincidence constraint. The beam will then follow the changes of the roof pitch. First, bind the beam's sideward location using a distance constraint, for example.

- Select Modeling | Connection |
Distance 
Coindidence. - Select the roof.

- Select the roof surface.

- Select the beam.

- Select the beam line.

Note
- The column under the beam will follow the beam, when a joint has been formed between them.
