Underfloor underlay

Discussion in 'Builders' Talk' started by snipper1, Nov 25, 2006.

  1. snipper1

    snipper1 New Member

    Hi,

    Probably a silly question...BUT

    Just recieved the duralay heatflow underlay for wet underfloor heating....... problem is no fitting instructions?

    the underlay has a white plastic side and a black felt side. Can/does anybody now which way is the proper way-up to lay on the concrete screed.
     
  2. trustmark

    trustmark New Member

    i dont know my geuss would be white plastic uppermost as it will form a vapour check and this should always be warmside of insulation
    have you tried googaling for product and tec helpline
     

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