Results 1 to 7 of 7
  1. #1
    Join Date
    Nov 2010
    Location
    Woodford, Qld
    Posts
    123

    Default form ply + cement sheeting OR 19/22mm cement sheeting

    folks, for a raised platform in the bathroom we are currently building, can formply and 4.5mm cement sheet be used instead of going to the 19/22mm cement sheeting products? the bathroom is on a concrete slab and we need the raised area to get the right fall for the drains from shower and bath. we are doing it this way to avoid having to dig out the slab, retermite protect, etc. The raised platfrom is 3m x 1200 with joists (?) every 40 cm. the area that is under the bath will also have noggins to stop any twisting (and because i am a huge fan of overkill). the top surface will tiled when complete.

  2. #2
    Join Date
    May 2012
    Location
    Woodstock (Cowra)
    Age
    75
    Posts
    832

    Default

    NO !!!!
    Use the correct compressed sheet either 19 or 22 is ok and a minimum of 3 coats of waterproof membrane
    The person who never made a mistake never made anything

    Cheers
    Ray

  3. #3
    Join Date
    Nov 2010
    Location
    Woodford, Qld
    Posts
    123

    Default

    cheers, i was both hoping and not hoping that that would be the correct answer.

    what is used to cut drain holes? will a regular hole bit do the job if the sheet is wet at the time?

  4. #4
    Join Date
    Jun 2013
    Location
    Geelong
    Posts
    87

    Default

    Quote Originally Posted by ajm View Post
    cheers, i was both hoping and not hoping that that would be the correct answer.

    what is used to cut drain holes? will a regular hole bit do the job if the sheet is wet at the time?
    Just a moment...

    pick your size in this style, TCT tungsten carbide for better cut
    cheers

  5. #5
    Join Date
    Nov 2010
    Location
    Woodford, Qld
    Posts
    123

    Default

    cheers

  6. #6
    Join Date
    May 2012
    Location
    Woodstock (Cowra)
    Age
    75
    Posts
    832

    Default

    Make sure you use the mastic sealant NOT SILICON for joints/junctions of wall/floor/step/bath with the reinforcing fabric.
    The person who never made a mistake never made anything

    Cheers
    Ray

  7. #7
    Join Date
    Apr 2018
    Location
    Nsw
    Age
    64
    Posts
    558

    Default

    Quote Originally Posted by ajm View Post
    cheers, i was both hoping and not hoping that that would be the correct answer.

    what is used to cut drain holes? will a regular hole bit do the job if the sheet is wet at the time?
    You can also drill a series of holes around the circumference as close as possible together with a small say 5mm masonry bit not on hammer function with the sheet fully supported. Tap out the center and clean up with a diamond blade. We also recess the puddle flange in flush with the sheet with the diamond blade

Similar Threads

  1. Gaps in cement sheeting for floor tiles
    By peter_sm in forum FLOORING
    Replies: 3
    Last Post: 20th February 2007, 10:09 PM

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •