Ridge beam on a older home

Can anyone tell me why this ridge beam is cut diagonally
It doesnt look cracked,its got a clean cut. Has anyone seen this before.Its on a single story home

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After sure it’s a ridge beam vs. a ridge board?

Any other photos?

A splice, complete with nails, from the original construction? See the nails from both directions.

How many feet in each direction to the edge of the house, or the next seam?

Note: you can’t ask a specific question without supplying a lot more detail. Nobody here was with you in that attic.

It is a failing scarf joint.



Larry is right. Improperly spliced and it is not a ridge beam, it is a ridge board.


What was the roof slope? it could indeed be or should be a ridge beam. From here the slope looks pretty low.

Looks like a crap repair job. Half the roof is sheathed in plywood, the other in wafer board.

And you won’t find that method of attachment in any code book, so that’s non-prescriptive construction.

It is a ridge beam and the slope is not steep at all
Im pretty positive its a scarf joint now that i had some help from yall. But why would this be used instead of one solid beam

Maybe they were short on the right length board. :man_shrugging:

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But why would this be built like this. Its a 1955 home with low slope

They didn’t know what they were doing. :-1:

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Because they had to extend it… for example the one piece wasn’t long enough. The best joint for that is something like a wedge scarf joint:


There may be more to the story here that may be related. Obvious repair. In addition to calling out the scarf problem, I would note the newer and older materials and send my client back to the seller for more information.


Thanks for the info Brian buyer’s know about the new and old sheathing

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The rafters and the ridge don’t look 1955. There must have been some recent significant repairs which included replacing structural framing.

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Ridge board had a bad warp/bend and they scarfed it to straighten it out. Once the rafter framing is completed, it no longer matters. Still, a good question for something rarely seen.

The issue here is not the type of joint but the gap at the connection of both ridge boards. That gap indicates movement.

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Just another hack job.