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Old 08-28-2012, 06:34 AM   #16
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(Residental) Rafter to Ridge Condition?


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Originally Posted by mgomez
I used the wrong hangers... I switched them at the last minute.
Do you have plans and permits for this?

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Old 08-28-2012, 06:36 AM   #17
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(Residental) Rafter to Ridge Condition?


Hangers are not your problem!
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Old 08-28-2012, 06:36 AM   #18
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(Residental) Rafter to Ridge Condition?


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Cut the rafters so they fit. Im not liking that roof design too much TBO
It's my first time, I'm obviously not a pro and any help would be greatly appreciated. The horizontal span is 12'6"/ S-P-F No.2 @ 16" oc. I just realized I used the wrong hanger and that's why the rafter is not flush. I have pictures included in my profile; take a look if you have time. Thanks
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Old 08-28-2012, 06:39 AM   #19
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(Residental) Rafter to Ridge Condition?


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Originally Posted by kwikfishron View Post
What good is a CM if they can't read a tape?

Looks like OP used the existing roof deck as his helper to hold the other end.

I'll bet the rafters are running wild on the other side with no seat cut.
I've included pics on my page, let me know what you think. I'm a 1st timer all the help is welcome.
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Old 08-28-2012, 06:42 AM   #20
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(Residental) Rafter to Ridge Condition?


I need more pics...from the outside and an overall pic of the room.

Like asked before, any plans or permits?
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Old 08-28-2012, 06:47 AM   #21
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(Residental) Rafter to Ridge Condition?


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Its not a dormer, there is nothing to hold it up. No room for a collar tie.
Ridge props? lol
What would you suggest??
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Old 08-28-2012, 06:50 AM   #22
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(Residental) Rafter to Ridge Condition?


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A couple of things, I don't think you are attaching to a ridge board in the picture, it looks like blocking between rafters to me.

Also, 2 x 6 @16" O.C. spanning 16' is not prescriptive for sure. I think you need this redesigned and submit for permits.

The rafters you cut, do they continue from the ridge to a wall plate?

Where are you located by the way?


Andy.
Yes they continue from ridge to wall double top plate. The horizontal length is 12'6". I have more pics on my profile if you have any time. Thanks
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Old 08-28-2012, 06:56 AM   #23
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(Residental) Rafter to Ridge Condition?


The size of the material is a whole diferent story, my concern is the design.
Need more pics of the entire project. Outside pic of the whole house and work being done, and pics of the entire space inside.
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Old 08-28-2012, 07:00 AM   #24
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(Residental) Rafter to Ridge Condition?


Walls are only for downward pressure, your setup is pushing your outside walls out with no ceiling joist or collar tie to hold it up.
It doesnt appear to be a small dormer, you seem to be raising the entire side of the roof to a 3 pitch, am i correct?
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Old 08-28-2012, 07:03 AM   #25
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(Residental) Rafter to Ridge Condition?


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What would you suggest??
At this point for the safety of your family and future families that have to live in that home, you need an architect.
You need to put in some props under that ridge and call a professional.
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Old 08-28-2012, 07:08 AM   #26
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(Residental) Rafter to Ridge Condition?


mgomez,

the point of Andy's post is that the span of your 2x6 rafters may not comply with the building code.

You need to find out from the building official what your ground snow load is. Rafters are sized based upon their spans, and the combination of live and dead loads they must support. I'm in Massachusetts and I can tell you if using KD spruce for rafters for a 30 psf live load and 10 psf dead load the maximum a #2 2x6 the maximum they can span per our building code is 11'-11".

This is a link to the 2009 International Residential Code for Rafter Spans http://publicecodes.cyberregs.com/ic...9_8_par027.htm

What is the pitch of your shed roof (for your dormer)?
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Old 08-28-2012, 07:13 AM   #27
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(Residental) Rafter to Ridge Condition?


and HAMMER is correct, you need to involve someone more knowledgeable than yourself that can put a set of eyes on your project and evaluate what you have.

and building a dormer and roof requires a BUILDING PERMIT, at least everywhere I have lived. if one is required in your area and you did not obtain a permit you may have issues with your local town, as well as being able to sell your home in the future. Some jurisdictions may require you to remove what you have built.

Find a local builder or professional engineer to evaluate what you have.

just my humble opinion ....
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Old 08-28-2012, 07:16 AM   #28
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(Residental) Rafter to Ridge Condition?


Very good info, thanks
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Old 08-28-2012, 07:17 AM   #29
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(Residental) Rafter to Ridge Condition?


Got a licensed contractor coming today. I needed to know what they would think once they got here.
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Old 08-28-2012, 07:21 AM   #30
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(Residental) Rafter to Ridge Condition?


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Originally Posted by Hammer450R View Post
Walls are only for downward pressure, your setup is pushing your outside walls out with no ceiling joist or collar tie to hold it up.
It doesnt appear to be a small dormer, you seem to be raising the entire side of the roof to a 3 pitch, am i correct?
Their are collar ties, and I was going to sister up against them (which you could not see in the photo here) and extend out to the new rafters. I also added a new photo in my album. Thanks

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