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Radon barrier

  • 19-04-2018 9:50pm
    #1
    johnpool24186
    Registered Users, Registered Users 2 Posts: 6 ✭


    First time poster so be nice! Just going starting a self build and am pricing radon barrier ! One supplier contacted me today and he wants to put it in flat across all the build! My floor build up is 75-100mm concrete,150mm insulation150mm subfloor! Question is will it be ok to lay radon on top of subfloor , straight out into cavity and down 225 mm and out? This will leave radon 450mm below finished floor on outside, would this detail be ok?


Comments

  • #2
    Gumbo
    Moderators, Society & Culture Moderators Posts: 40,369 Mod ✭✭✭✭Gumbo


    johnpool24186 wrote: »
    First time poster so be nice! Just going starting a self build and am pricing radon barrier ! One supplier contacted me today and he wants to put it in flat across all the build! My floor build up is 75-100mm concrete,150mm insulation150mm subfloor! Question is will it be ok to lay radon on top of subfloor , straight out into cavity and down 225 mm and out? This will leave radon 450mm below finished floor on outside, would this detail be ok?

    What details has your engineer/architect/surveyor drawn up?


  • #3
    johnpool24186
    Registered Users, Registered Users 2 Posts: 6 ✭johnpool24186


    Arch has shown it under subfloor but this will mean stepping it around all the internal walls! As it’s a high radon level area the radon supplier is reluctant to do this! Just wanted some feed back before I contact architect!


  • #4
    sydthebeat
    Subscribers Posts: 42,172 ✭✭✭✭sydthebeat


    johnpool24186 wrote: »
    Arch has shown it under subfloor but this will mean stepping it around all the internal walls! As it’s a high radon level area the radon supplier is reluctant to do this! Just wanted some feed back before I contact architect!

    Use a 140 high soap bar at sub floor level, which will allow the barrier to run through, and also give you a level to screed off the top of the sub floor. Work your block courses from there then.


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