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How long to let floors dry before tiling

  • 30-07-2008 2:27pm
    #1
    In need of help
    Registered Users Posts: 13 ✭


    Hi there,
    Just wondering how long does it take for new floors to dry before putting down porcelian tiles??:confused:


Comments

  • #2
    sinnerboy
    Closed Accounts Posts: 5,433 ✭✭✭sinnerboy


    Safe rule of thumb is 1 day per mm thickness of concrete


  • #3
    Slig
    Registered Users, Registered Users 2 Posts: 1,550 ✭✭✭Slig


    Concrete is cured after 7 days, but as it gets progressively stronger over time it may be worth waiting 29 days.


  • #4
    sinnerboy
    Closed Accounts Posts: 5,433 ✭✭✭sinnerboy


    Slig wrote: »
    Concrete is cured after 7 days, but as it gets progressively stronger over time it may be worth waiting 29 days.

    .... to achieve design strength - for drying out - much longer .

    75mm screed will need 75 days . UNLESS - you have UFH which you bring on slowly 10 degrees at first gradually rising 1-2 degrees per day for 2 weeks . Hire a concrete specific moisture meter to measure % moisture before finishing over

    When I moved in to ( developer spec ) new house some years ago I lived with horrible , but cheap , nylon needle punch carpet for 6 weeks before placing timber flooring down . A neighbour did not bother doing this - his flooring cupped .


    .


  • #5
    Slig
    Registered Users, Registered Users 2 Posts: 1,550 ✭✭✭Slig


    good point


  • #6
    RKQ
    Registered Users, Registered Users 2 Posts: 2,292 ✭✭✭RKQ


    One month per inch or 30 day for every 25mm of depth.

    Depends on time of year too.
    A moisture meter is a very good idea.


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