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Bounce In The Floor....
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11-13-2009, 07:48 PM
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#1 |
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The Remodeler
Trade: Home Remodeler
Join Date: Apr 2005
Location: Long Island, NY
Posts: 940
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Bounce In The Floor....
Homeowner wanted to know why his living room floor was so bouncy.. I pulled down a few tiles in the drop ceiling below and found this. I watched the 2x8 floor joists bow and pivot in their hangers when the 250lb homeowner bounced above. The joists are only spanning 9' between a microlam on one end and a 2x8 bolted to a steel I-beam shown in the picture.
Since I dont own the coveted board stretcher  so I can remove the 1/2" plywood scraps, anyone care to offer an opinion on securing these joists properly? Sister new full length? Opinions appreciated.
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11-13-2009, 07:53 PM
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#2 | |
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Pro
Trade: Framing
Join Date: May 2009
Location: SI, NY
Posts: 506
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Re: Bounce In The Floor....Quote:
pop the tecos off, yank the plywood, cut back the joist and inch and a half, lag a 2x10 to the steel pack-out. re-teco the joists to your new ledger. 
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11-13-2009, 07:55 PM
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#3 |
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Pro
Trade: Licensed Electrical Contractor and Remodeler
Join Date: Sep 2009
Location: Chicago Suburbs
Posts: 7,016
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Re: Bounce In The Floor....
I cant imagine that those joist hangers are very strong in situ.
If it was just one, I would say sister them but with all the holes for the mechanicals that would be a monumental task. What a mess!
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220...221...whatever it takes! |
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11-13-2009, 08:35 PM
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#4 | |
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Curmudgeon
Trade: carpentry/remodeling/"Yes M'am we do"
Join Date: Apr 2006
Location: Beech Grove, Indiana, Birthplace of the "King of Cool"
Posts: 11,707
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Re: Bounce In The Floor....Quote:
__________________
Put your location in your profile! (Sorry....it seems there really are dumb questions) |
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11-13-2009, 09:15 PM
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#5 | |
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The Remodeler
Trade: Home Remodeler
Join Date: Apr 2005
Location: Long Island, NY
Posts: 940
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Re: Bounce In The Floor....Quote:
The joists were cut back to allow the flange on the I-beam to slide past. The existing 2x8 pack-out (thanks for teaching me a new term) doesnt come flush with the edge of the flange, that's why they slid the plywood scraps in there. If I cut the joists back to just 1 1/2" from the existing pack-out, I wont be able to slide the new 2x8 ledger in there.. the edge of the steel flange is still in the way. Know another way around this? Larger piece of plywood with a generous nailing pattern and taller hangers? |
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11-13-2009, 09:19 PM
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#6 |
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solar guy
Trade: solar contracting
Join Date: Feb 2009
Location: Annapolis Md
Posts: 1,883
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Re: Bounce In The Floor....
Multiple layers of plywood glued and the bejesus nailed out of them then properly sized hangers.
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11-13-2009, 09:20 PM
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#7 |
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Pro
Trade: framing/remodeling
Join Date: Feb 2005
Location: NE Ohio
Posts: 3,696
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Re: Bounce In The Floor....
Go with the wider strips of plywood with glue and nails. Also get some hangers that extend up higher so that it fully wraps the joist.
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11-13-2009, 09:23 PM
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#8 | |
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I like Green things
Trade: Custom Carpentry Services
Join Date: Jan 2008
Location: In a van, down by the river. Auburn, IN
Posts: 11,675
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Re: Bounce In The Floor....
Burn it down and start over??
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11-13-2009, 09:25 PM
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#9 | |
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The Remodeler
Trade: Home Remodeler
Join Date: Apr 2005
Location: Long Island, NY
Posts: 940
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Re: Bounce In The Floor....Quote:
 I needed that...
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11-13-2009, 09:40 PM
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#10 |
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Pro
Trade: Framing
Join Date: May 2009
Location: SI, NY
Posts: 506
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Re: Bounce In The Floor....
yank the tecos and the scrap plywood turds. counter-sink their thru-bolts. throw continuous plywood rips in to bring you closer to the cuts on the fj's. put some decent tecos on and roll up. they should have pack the steel flush, i usually do the plywood first, then the lumber. don't see going the other way being much of a problem. if you want to glue it like the other comment said, go for it, it can't hurt.
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11-13-2009, 09:59 PM
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#11 |
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The Remodeler
Trade: Home Remodeler
Join Date: Apr 2005
Location: Long Island, NY
Posts: 940
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Re: Bounce In The Floor....
Thanks guys...
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