Many times we have conditions like the one in the image above where a masonry wall with furred out studs extends across an opening, ending perpendicular to another wall. The opening is created using an empty window or door. The other way of achieving it is to build two separate walls (one for the full exterior wall and one for the header wall above the opening). Using the first method, typical wall type (CMU + furring) creates a false corner condition, showing furring studs intersecting the masonry corner. My suggestion is to build two separate walls, one CMU and one for the furring wall. This way we have better control of these conditions. Another example is when using a wall type that includes both and in the building section shows the furring extending pass the roof surface all the way to the top of the parapet.
I believe that the BIM experience should go parallel to the construction methods and procedures. In other words, when we are modeling, we are really building in the field. Masonry goes first, furring is added later at the interior. Unfortunately, BIM softwares don’t give us the flexibility to control wall layers individually in a wall composite. Please let me know if there is a way!!! Otherwise, using some of these standard composite wall types will continue creating confusing drawings that are not communicating correctly the design intent.
Thoughts?
the blog thing 