Joining Composite Walls and Composite Roofs

jd10003 — Sat, 10 Jan 2026 23:13:56 GMT

I think I know the answer to this, but wanted to check and be sure.

I have a composite roof meeting a composite wall, and I want the plywood and roofing skins of the roof composite to extend past the wall to create an overhang (which will be supported by a custom profile rafter tail object). Is it possible for some of the skins of the composite roof to extend a couple of feet beyond the edge of the framing skin of the roof?

I think I have to model the framing of the roof and the sheathing/finish as separate roofs in order to get that overhang that I want, but wanted to see if I'm missing something here.

(For the record, if I do the 2-roof workaround, my wall composite skins won't be cut by the shorter roof structure, so I have to model the wall as two separate walls as well!)

Here's a sloppy version trying it with a structural wall and a finish wall, and a structural roof and finish roof. You can see how I want the roof sheathing skins to extend past the roof framing skin. I don't have it all resolved and joining correctly here, but I can get it to work. But you can imagine it becomes very unwieldy trying to edit and to deal with doors and windows when everything is a "double" wall or "double" roof! There must be a simpler way???

Re: Joining Composite Walls and Composite Roofs

Christophe Fortineau — Tue, 23 Jun 2026 12:00:55 GMT

Hello @jd10003 ,

Did you try this ?

https://www.youtube.com/watch?time_continue=121&v=sKAlxxFp8Lo&feature=emb_logo&ab_channel=GoStobbart

Re: Joining Composite Walls and Composite Roofs

Patrick M — Tue, 23 Jun 2026 21:43:27 GMT

I use a combination of solid element operations and merge. I know the trim to roof is supposed to be cleaner, but it's glitchy over time.

Re: Joining Composite Walls and Composite Roofs

Patrick M — Tue, 23 Jun 2026 21:44:02 GMT

for the roof overhang, it's a combination of a separate roof, and complex profile beams.

topic Re: Joining Composite Walls and Composite Roofs in Modeling

Joining Composite Walls and Composite Roofs

Re: Joining Composite Walls and Composite Roofs

Re: Joining Composite Walls and Composite Roofs

Re: Joining Composite Walls and Composite Roofs