Carpenters, how hard would it be to raise this ceiling? - Chevelle Tech
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post #1 of 21 (permalink) Old Mar 16th, 11, 6:34 PM Thread Starter
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Ron
 
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Carpenters, how hard would it be to raise this ceiling?

My shop has 9 foot ceilings, I would like to raise it to 12 feet (hoping to fit a lift in there) I would just need to raise the middle part, about 10 feet wide. These pictures show the attic above which is just full of junk and I dont need that space. The attic is 10 feet wide down the middle and 8 feet high.The window is 3 feet off the floor so I could raise the floor up to the bottom of the window without messing with the outside at all. To me it doesnt look real complicated but I am no kind of carpenter. I do want to enclose it like it is now so I can have it insulated to heat and cool. The building is 24 feet wide by 32 feet deep.
Look at the pics here.
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post #2 of 21 (permalink) Old Mar 16th, 11, 6:49 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

From the pictures it appears as if you have factory built attic trusses which means you would have to remove the entire roofing deck, facias, gutters ceiling material. Then once all that is done you remove the trusses, each will come off as a whole width of the garage. Then you would have to rebuild the outside walls with 12 foot 2/6s, after removing what ever is on and in the walls now. Add sheathing to the raised height, then siding outside, refinish the inside walls after replace all wiring plumbing etc found in the walls currently. Put the roof trusses back on top of the walls (this is IF they pass current construction codes). Redeck, reroof, put up new facias, gutters etc etc.
Now what I cannot tell is how it is attached to the house and what raising it would do asthetically. Of course you may have subdivision covenents that would require approval.
Have I scared you off yet? You are talking one expensive 3 foot of wall!!!!!!!!!

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post #3 of 21 (permalink) Old Mar 16th, 11, 6:51 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

As long as you dont change the original truss design I can t see any reason why you can't raise ceiling between the truss uprights ........ no problem

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post #4 of 21 (permalink) Old Mar 16th, 11, 7:07 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

I don't think you can just hack out the bottom stringer and raise it up - trusses are engineered to take a specific load and really can not be cut up very easily. I understand that you are thinking you can just raise the center up 3' and good to go, i don't think it is quite that simple. You might want to talk to a truss Mfg or someone that understands them, I'm guessing they will tell you no but I have seen stranger things done.

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post #5 of 21 (permalink) Old Mar 16th, 11, 7:07 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

Quote:
Originally Posted by depley View Post
From the pictures it appears as if you have factory built attic trusses which means you would have to remove the entire roofing deck, facias, gutters ceiling material. Then once all that is done you remove the trusses, each will come off as a whole width of the garage. Then you would have to rebuild the outside walls with 12 foot 2/6s, after removing what ever is on and in the walls now. Add sheathing to the raised height, then siding outside, refinish the inside walls after replace all wiring plumbing etc found in the walls currently. Put the roof trusses back on top of the walls (this is IF they pass current construction codes). Redeck, reroof, put up new facias, gutters etc etc.
Now what I cannot tell is how it is attached to the house and what raising it would do asthetically. Of course you may have subdivision covenents that would require approval.
Have I scared you off yet? You are talking one expensive 3 foot of wall!!!!!!!!!
I think he only wants to raise the inside ceiling up 3 feet and not the whole building.
Kim
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post #6 of 21 (permalink) Old Mar 16th, 11, 7:14 PM Thread Starter
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Re: Carpenters, how hard would it be to raise this ceiling?

Quote:
Originally Posted by Kim57 View Post
I think he only wants to raise the inside ceiling up 3 feet and not the whole building.
Kim
Yes Kim is correct, I just want to raise the center of the ceiling.

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post #7 of 21 (permalink) Old Mar 16th, 11, 7:18 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

I agree check with a truss mfg, I could be dead wrong , but that design I beleive you can transfer the load up 3' build the new raised ceilings before you cut out the stringers ...............but again dbl check with a truss mfg. I doubt you are in a high snow load zone ??

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post #8 of 21 (permalink) Old Mar 16th, 11, 7:25 PM Thread Starter
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Re: Carpenters, how hard would it be to raise this ceiling?

Quote:
Originally Posted by CDN SS View Post
I agree check with a truss mfg, I could be dead wrong , but that design I beleive you can transfer the load up 3' build the new raised ceilings before you cut out the stringers ...............but again dbl check with a truss mfg. I doubt you are in a high snow load zone ??
Snow? We got a few inches this year, but its not a problem. I think I would be better off to check with a truss manufacturer like was suggested.

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post #9 of 21 (permalink) Old Mar 16th, 11, 7:35 PM
von
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Re: Carpenters, how hard would it be to raise this ceiling?

The trusses make it a little bit harder but the end result is like a recessed tray ceiling in a house. I think you'd need to run 2x6 joists from rafter to rafter at the new ceiling height to transfer the load to the rafters. Then for extra strength triangulate from the new joist/rafter juction point to the existing joist/vertical framing juction point (looks like that's already there).

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post #10 of 21 (permalink) Old Mar 16th, 11, 7:42 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

Any reason why you don't want to raise the whole building?

Jim

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post #11 of 21 (permalink) Old Mar 16th, 11, 7:44 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

Quote:
Originally Posted by von View Post
The trusses make it a little bit harder but the end result is like a recessed tray ceiling in a house. I think you'd need to run 2x6 joists from rafter to rafter at the new ceiling height to transfer the load to the rafters. Then for extra strength triangulate from the new joist/rafter juction point to the existing joist/vertical framing juction point.
Thats it in a nutshell, finish all the redesign work, then cut out the old ceiling. No worry about loads from snow and a tornado will remove it all either way.
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post #12 of 21 (permalink) Old Mar 16th, 11, 8:17 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

Quote:
Originally Posted by Alwhite00 View Post
I don't think you can just hack out the bottom stringer and raise it up - trusses are engineered to take a specific load and really can not be cut up very easily. I understand that you are thinking you can just raise the center up 3' and good to go, i don't think it is quite that simple. You might want to talk to a truss Mfg or someone that understands them, I'm guessing they will tell you no but I have seen stranger things done.

LK
A Truss manufacturer would not just say no, but HELL NO !
It might be possible the trusses could be modified to accomplish what you want but it would take an engineer to do it right.

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post #13 of 21 (permalink) Old Mar 16th, 11, 8:25 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

Quote:
Originally Posted by von View Post
The trusses make it a little bit harder but the end result is like a recessed tray ceiling in a house. I think you'd need to run 2x6 joists from rafter to rafter at the new ceiling height to transfer the load to the rafters. Then for extra strength triangulate from the new joist/rafter juction point to the existing joist/vertical framing juction point (looks like that's already there).

Exactly .you explained it well

I was just kidding about the snow load in Tn

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post #14 of 21 (permalink) Old Mar 16th, 11, 8:54 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

dont get discouraged it can be done right in the center the floor of the upstairs will go up the 3 feet and tied back in contact a local contractor to come out and look at it
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post #15 of 21 (permalink) Old Mar 16th, 11, 9:05 PM
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Re: Carpenters, how hard would it be to raise this ceiling?

Put a beam under the uprights the top 3 pics show to support the load of the trusses. I would just raise the ceiling where the lift will be. That would be much simpler and you would still have some of the room upstairs. That way the beam would not have to be so long and be much cheaper. After the beams are in you could cut out the ceiling without any problems.

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