Hipped roof for small frame.

Dave Shepard · April 05, 2024, 09:25:30 PM

I'm designing a small timber frame, let's say 10'x12' for now, and I'd like to try a hipped roof. I see a big problem which is having the plates and ties at the same height. This creates a three way joint, and also interference of the brace pegs. I also don't know much about compound roof joinery, which is my primary interest in learning this roofing style. Has anyone here done a hipped timber frame roof? Thanks.

doc henderson · April 06, 2024, 10:51:41 AM

@Jeff built a pavilion. It had gable ends but did have a three-way joint. I will try find the thread or he may chime in.

doc henderson · April 06, 2024, 10:55:40 AM

F.F. pavilion build. - Page 13 (forestryforum.com)

Don P · April 06, 2024, 11:22:15 AM

There are 3 articles by Ed Levin in the red book on hip and valley layout. I can scan if needed, it has been a long time since I read them.
Anymore I draw any complex roof framing in sketchup, make it work there and then roll it around and pull any measurements and angles from the drawing. I was taught better but it sure is easier. Well, I'm back for a break from a job just up the road, retrieving a forgotten drawing on a simple porch... oops (it is cold and windy so there is that

)

Dave Shepard · April 06, 2024, 02:11:00 PM

Thanks, I have the Red Book. I'll have to dig it out tonight.

I'm not worried about designing a three way joint, I just don't like them.

Don P · April 06, 2024, 06:38:55 PM

I was cogitating today. Fine HB did an article that featured a steel , basically 3" bladed framing square with ~4' legs in each direction on top of the plate in a stick framed cabana. A pair of vertical ears welded on each side of where the hip passes between them and is lagged. This created a tension ring for a vaulted interior. Structurally, the ties in a hip are diagonal from hip to hip. Without them, that is the thrust direction, hips pushing into the corner joint.

Or, design it as a 3D truss, then the wall ties can be dropped and the hip ties/bottom chords are up on the plates.

iosborne · April 30, 2024, 09:47:00 PM

What is this red book and where do I find one?

Dave Shepard · April 30, 2024, 10:26:44 PM

It's a collection of articles from the Timber Framer's Guild journal "Timber Framing". I'm guessing it would still be available from the Guild.

I dug out my copy and started reading the Ed Levin articles on hipped roof joinery.