Under floor heating biscuit mix drying time

Discussion in 'Builders' Talk' started by SamC4, May 23, 2021.

  1. SamC4

    SamC4 New Member

    Hi everyone,

    I have been putting in underfloor heating in a suspended timber floor with the space between the joists filled in with biscuit / pug mix. I'm just trying to find out how long I need to wait before laying the floor.

    The biscuit mix is a damp 8:1 sand cement mix (no added water, just damp from the water in the sand) and is 25mm deep.

    Should I treat this like a traditional screed and go by the "1 day per mm" rule? Or will it take less given it's a pretty dry mix?

    I appreciate any advice you an offer! :)

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