sema79
Structural
- Apr 28, 2008
- 23
Hi everyone,
My company is investigating the failure of some roof framing after the recent snowstorms. The rafter does not connect directly into the wall plate. Instead the joists bear on the wall, continuous 2x4 runs across the top of the joists and the rafters bear on the continuous 2x4. There is a rim joist that also takes some of the load from the rafters. As you would expect the rafter forces are pushing the rim joist away from the joist. I'm from Florida and have never seen framing like this in 5 years of construction and 10 years of engineering. When I saw this my response was why would someone do something like that and think it was ok. I have attached a sketch of the condition. Please take a look at the sketch and let me know what you think. Is this detail something that is or was acceptable in the north?
Thanks in advance!
My company is investigating the failure of some roof framing after the recent snowstorms. The rafter does not connect directly into the wall plate. Instead the joists bear on the wall, continuous 2x4 runs across the top of the joists and the rafters bear on the continuous 2x4. There is a rim joist that also takes some of the load from the rafters. As you would expect the rafter forces are pushing the rim joist away from the joist. I'm from Florida and have never seen framing like this in 5 years of construction and 10 years of engineering. When I saw this my response was why would someone do something like that and think it was ok. I have attached a sketch of the condition. Please take a look at the sketch and let me know what you think. Is this detail something that is or was acceptable in the north?
Thanks in advance!