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recent UBC clarifications effecting plumbing

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  • recent UBC clarifications effecting plumbing

    Clarifications regarding recent Emergency Code Changes to Chapter 11B, 2010 CBC.


    Item 2 – 1115B.4.1 Accessible Water Closets

    · Prior 2010 CBC language required an absolute dimension of 18” from the centerline of the water closet to the adjacent side wall.
    · California regulatory agencies typically allowed variance from absolute dimension, based on construction tolerances, ranging between zero to approximately ½”.
    · 2010 ADA changed its prior 18” dimension to a range of 16” to 18”, with no tolerances allowed outside of the range.
    · California’s prior 18” absolute centerline dimension forced violation of the 2010 ADA Standards Section 604.2 for installations whose centerline dimension exceeded 18” within acceptable construction tolerances. For example an installed dimension of 18 ¼”, which may have been accepted by a California regulatory agency, violates the 2010 ADA.
    · The Emergency Regulations adopted the 2010 ADA range of 16” to 18”.

    · DSA IR 11B-8 provides guidance to designers and advises that “dimensions noted in accessibility provisions as ‘maximum’ or ‘minimum’ should not be considered dimensions for design . . .” DSA will be issuing a guidelines document for the 2013 accessibility code including both federal and state advisories. On this topic it will suggest that the optimum design dimension within the range would be 17”.



    Item 4 – 1117B.1 Accessible Drinking Fountains

    · 2010 ADA Sections 602.4, 602.5, and 602.6 provided greater accessibility through very detailed and specific requirements for the spout location and angle of the water flow for accessible drinking fountains.
    · There were inconsistencies and possible conflicts between the prior CBC language and the 2010 ADA on these technical requirements.
    · The Emergency Regulations adopted 2010 ADA technical requirements for accessible drinking fountains.





  • #2
    Re: recent UBC clarifications effecting plumbing

    WHAT, I always read 15" center line ,Min. and 30 over Min. all!!!!!!
    I can build anything You want , if you draw a picture of it , on the back of a big enough check .

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    • #3
      Re: recent UBC clarifications effecting plumbing

      Thats for residential closets. These are ADA specs. Always been 18" Looks like were getting some wiggle room.

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      • #4
        Re: recent UBC clarifications effecting plumbing

        Originally posted by fresnoplummr View Post
        Thats for residential closets. These are ADA specs. Always been 18" Looks like were getting some wiggle room.
        Yes, but only smaller, not larger.

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