What would cause this?

New construction. I find it hard to believe the rafters were cut too short and the inspector let it pass. Roof over garage with bonus room. Most of the rafters on the right were pulling away at the bottom to some degree. Why? I marked it up as somone elses problem. :mrgreen:


Without getting a clear view with the limited perspective that you gave, I suspect that its not pulling away but as you pointed out…poor craftsmanship.

If it were pulling way then that would mean that there would be a downward force being excerpted upon the roof… that would show up in the birdsmouth cut (I suppose you don’t have any pictures of those) and or the walls bowing out.

Corrective action is fairly simply and inexpensive… not a deal breaker by any means; builder needs to have framers come back out and correct the issue.

Looks like bad framing cuts to me too. Some of them don’t even look straight, much less flush.

What is that light coming in at the far end of the ridge?

Sean, there’s no collar ties installed as (not) seen in the picture. Collar ties, minimum 1"x4" should be installed every other rafter to prevent seperation and uplift.

It was hard to see all aspects. They left very little room to access that area, and insulation covered the bottom side. So all I could do is snap pics. The cuts were actualy all straight, just pulling away at the bottom. A couple did not even make contact. Thanks for the response.

From your pictures there is more than one cut that is not straight! Poor craftsmanship.


How were they attached to the top plate at the eave? Misisng rafter tie downs, or bad bird’s mouth cut maybe? Missing collar ties would allow for rafter spread too.

How were they attached to the top plate at the eaves ??? or bad bird’s mouth cut maybe (quote from scott) , Yeh scott i’m sure the ridge to rafter cuts are bad due to the bad rafter birds mouth cut that sits on the top plate on the exterior wall ??? NOT
Can anyone see that
there are no collar ties ???
What’s sitting on the top plate is affected by rafter ties, that is not even considered in this post, since they would be in the bottom third of rafters and joist connections (rafter ties), which appears not to be in the picture!!! The picture I see is limited to verify that there are no collar ties. Can anyone that might know anything please acknowladge that??? There is nothing in this picture that can be verified except that there is no collar ties. Anyone that says that this is poor workmanship, go out and make the rafter cuts that are a perfect cut/angle to the ridge. As Sean said , the cuts on this roof weren’t that bad. There are no major industial saws on jobsites, these framers cut rafters with hand held saws, circular saws (at least in my neck of the woods). If you can do any better, please show us, any one judging poor workmenship (isn’t that easy to say when you have never done it). For example, Chuck Lambert from this post, show us pictures of the framing you have done, so we can compare it to the poor craftmanship you have declared with your expertise in this post and no, I have never been a framer and would not ever be one, but I have paid them to do what they do and can respect them without having to hear or wanting to here others , as on this site to automatically (that has never done it) say POOR WORKMANSHIP. Thankyou to all the quality framers and carpenters around and sorry for every time you had a tough cut that wasn’t perfect and that some idiot said it was poor workmanship.!!!

Chuck, the pic is an illusion. The cuts were straight. I just wasent going to crawl over the ductwork to get to that area. I was mainly curious if anyone has ever came across the issue before. You can’t see the bottom side, insulation covered it up. Either way it needs fixin :|.). My guess would be to add collar ties. I just marked it up, let them figure it out.


The ridgeboard is not properly attached/joined either.

I agree… not pulling away, just poor quality framing, bad top cuts. I don’t think it’ll move at all. Ugly but stable. Physics will want to close those gaps, not open them. In order for the gaps to close the sheathing would have to crush which won’t happen unless the sheathing decays. Many of those rafters connect with the ridge at the peak and are open at the heel (Bottom of the top cut) only.

Ugly as it is, I would not recommend correction but just describe it as poor quality framing. The cuts may have been straight, but they were poorly executed and not cut to the proper angle. You can see the nail shafts… there’s no illusion there. It’s bad work.

Jeff’s right… improper nailing schedule.