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  1. #1
    Join Date
    Jul 2007
    Location
    Elmont, NY
    Posts
    22

    Default Compromised floor joists

    Came across this addition to the rear of a home during an inspection yesterday.
    I reported that it was in need of SE evaluation and possible added support.

    The plumber could have easily hung these hot and cold sink water supply lines below the joists in this unfinished crawlspace, but instead decided to bore two lines of holes about 1.5 inches in diameter only 1/2" from the edge through every joist. Holes should not be made closer than 2" from the edge when they are needed.

    It was worse because this was the exact center of the span of these 2 X 6 joists with a grouted tile floor above in the kitchen.

    I did not see any sagging or tiles cracked yet but always wonder what these guys are thinking.

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  2. #2
    Join Date
    Mar 2007
    Location
    Columbus GA
    Posts
    3,746

    Default Re: Compromised floor joists

    You were right to report it.

    ' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.

  3. #3
    Join Date
    Jul 2008
    Location
    Lancaster, CA
    Posts
    153

    Default Re: Compromised floor joists

    Good catch..

    I've caught this a number of times when new construction is built and someone installed BX through all the bottoms of the truss chords in the garage..

    Like you said... what's worse is that in many of these cases it would have been *easier* to install the items without damage to the structure.

    I imagine he'll be surprised that there is literally $1000's of damage in drilling a few holes...

    He may even reply that "It's not a big deal, I drill them like that everyday "


  4. #4

    Default Re: Compromised floor joists

    What was the span of the joists? 2x6's 16" oc shouldn't span but around 8.5 feet with a tile foor anyway.

    Clarksville Home Inspection
    JW Goad
    TN License #307 | KY License #2402

  5. #5
    Join Date
    Jul 2007
    Location
    Elmont, NY
    Posts
    22

    Default Re: Compromised floor joists

    About 8 feet. The rest of the construction looked good until that final step.


  6. #6
    Join Date
    Mar 2007
    Location
    Knoxville, TN
    Posts
    2,446

    Default Re: Compromised floor joists

    Good call Sal.


  7. #7
    Join Date
    Mar 2007
    Location
    Charlotte NC Licensed in NC and SC
    Posts
    597

    Default Re: Compromised floor joists

    The plumber must own one nice drill and was itching to use it.

    No need for an engineer though, plenty of contractors around that know how to repair that.

    Bruce King, B.A. King Home Inspections, LLC
    www.BAKingHomeInspections.com
    Certified Master Inspector, Independent Inspectorwww.IndependentInspectors.org

  8. #8
    Join Date
    Mar 2007
    Location
    Spring City/Surrounding Philadelphia area
    Posts
    3,473

    Default Re: Compromised floor joists

    [QUOTE=Bruce King;159506]The plumber must own one nice drill and was itching to use it.

    No need for an engineer though, plenty of contractors around that know how to repair that.[/QUOTE]

    I agree with Bruce. The condition is straightforward and clear to see. A competent contractor or carpenter should be able make the necessary corrections......after a plumber comes back in to reroute those pipes.

    "It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey

  9. #9
    Join Date
    Jul 2008
    Location
    Utah
    Posts
    389

    Default Re: Compromised floor joists

    What a pain to cut those holes? Was he being proactive and thinking of the next guy when it came time to finish that space?

    Maybe he couldn't hit the necessary invert without keeping the lines that high.

    Either way, good call for concern.

    EDIT: Sorry I assumed they were waste/vent ABS lines in which I was wondering how the heck did he get those in. After re-reading I understand they are water and that the space below is crawl space. I was way off. Just . . . things that make you go hmmmmm???

    Last edited by Rod Butler; 02-14-2011 at 10:24 AM. Reason: Response lacking.

  10. #10
    kevin hergert's Avatar
    kevin hergert Guest

    Default Re: Compromised floor joists

    Back in my home-building days, I had a home with a very large glu-lam beam that supported the wood frame garage above. As I left for lunch, I told the electrician to run all wires around the glu-lam and I will have the framer come back and box around the wires. Absolutely no holes are allowed in the beam.

    Too my horror, when I arrived back from lunch, the electrician had drilled numerous holes in all areas of the glu-lam beam.

    Luckily (for the electrician) the structural engineer for the job proved that the holes did not compromise the beam beyond design.


  11. #11
    Join Date
    Apr 2008
    Location
    Massachusetts
    Posts
    191

    Default Re: Compromised floor joists

    In my consulting days, I would bring the trades together before the project and I would tell them that we were trying something new. They were going to have to run all of their pipes, ducts and electrical lines before the buidling was framed. The framer will then come in aand cut anything that was in the way of their framing. They got the point.


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