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  • FIRST POST
    • Simba-ali34
    • By Simba-ali34 7th Feb 18, 7:34 PM
    • 164Posts
    • 7Thanks
    Simba-ali34
    Flooring construction
    • #1
    • 7th Feb 18, 7:34 PM
    Flooring construction 7th Feb 18 at 7:34 PM
    Hello,

    I have a quick question about floor joists and plasterboard ceilings.... A floorboard was lifted and I noticed the the ceiling below is not connected directly to the joist because I can see the bottom of the I-joist. What other method is used in residential new build to secure ceilings?

    Regards
Page 1
    • ceredigion
    • By ceredigion 7th Feb 18, 11:01 PM
    • 2,523 Posts
    • 3,259 Thanks
    ceredigion
    • #2
    • 7th Feb 18, 11:01 PM
    • #2
    • 7th Feb 18, 11:01 PM
    Resilient bars
    http://www.british-gypsum.com/products/gypframe-sound-insulating-bars?tab0=0
    • Simba-ali34
    • By Simba-ali34 8th Feb 18, 9:29 AM
    • 164 Posts
    • 7 Thanks
    Simba-ali34
    • #3
    • 8th Feb 18, 9:29 AM
    • #3
    • 8th Feb 18, 9:29 AM
    Is this the same kind of thing as "metal stud ceiling"?
    • ceredigion
    • By ceredigion 8th Feb 18, 6:14 PM
    • 2,523 Posts
    • 3,259 Thanks
    ceredigion
    • #4
    • 8th Feb 18, 6:14 PM
    • #4
    • 8th Feb 18, 6:14 PM
    No not really. they are used as a sound suppressant system. They are mounted at 90 degrees to the joists and the plaster board is screwed to them. You end up with what is affectively a sprung ceiling so any knocking isn't transmitted directly.
    • Simba-ali34
    • By Simba-ali34 9th Feb 18, 8:09 AM
    • 164 Posts
    • 7 Thanks
    Simba-ali34
    • #5
    • 9th Feb 18, 8:09 AM
    • #5
    • 9th Feb 18, 8:09 AM
    The joist has a piece of metal attached to the side running parallel. Then another piece of metal runs perpendicular between this joist and what looks like another piece of metal. I couldnt see any more due to all the insulation. I believe there is a metal stud wall directly below. I was just confused to not see plasterboard attached to the bottom of the joist.
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