Nhbc plaster work dabs perimeter thermal sealing and thermal imaging

Discussion in 'NHBC' started by newbuildinspections, Apr 19, 2018.

  1. newbuildinspections

    Joined:
    May 7, 2016
    Messages:
    34
    Likes Received:
    2
    In regards to direct bonding of plasterboard to masonry, I've done some digging. BS 8000:8 and manufacturers are clear with regards to the distribution and size of dabs

    Since this is "hidden" work - not a lot of notice paid on site! Perimeter sealing rarely done etc. etc.

    Methods of assessing poor work

    Crap dot-and-dab can be challenged on a number of levels:
    1. Plasterboard's ability to support load compromised
    2. PB's bonded strength compromised. From a punter's point of view - the wall's "feel paper thin and hollow" as they resonate like a drum when a door is closed!
    3. Air infiltration - reduction in thermal efficiency (Building Regs AD L1)
    4. Air infiltration - passage of smoke and fire behind boards (Building Regs AD B1)
    5. And of course "work not to a workmanlike standard" (BS 8000 / Warranty providers standards / manufacturer's recommendation)

    I took the thermal image below last week. Insufficient dabs, heat blooming behind boards from the underfloor heating etc. The rest of the ground floor wasn't much better. Funny, because the house in general was well finished.... A large plasterboard tent.
    [​IMG]
     

Share This Page

Newbuild inspections image
  • About Us

    Our community has been around for many years and pride ourselves on offering unbiased, critical discussion among people of all different backgrounds. We are working every day to make sure our community is one of the best.
  • Quick Navigation

    Open the Quick Navigation

  • Like us on Facebook