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Radon Sump .. Can it be instsalled in existing house ?

  • 23-01-2008 10:25am
    #1
    johnnyreb999
    Registered Users, Registered Users 2 Posts: 2 ✭


    Hi all,
    My house was started in 2001 but the build ended acriminiously by 2002 & we completed ourselves. When we applied for the rural renewal grant the inspector informed us he could not find the outlet pipe for the radon sump.
    Any thoughts or suggestions ?
    Can a retro fit of a Radon sump be done and at what cost ?


Comments

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


    sounds like a dirty nasty job now . need to break the (assumed concrete ) floor up . sumps are required in a central location or locations at a rate of 1 per 50m2 in the hardcore bed . then they must be vented i.e. you have to cut a trench in your floor from the sump to connect a vent pipe ( looks like a rain water pipe ) which vents to outside the building . then you need to make good your radon barrier , insulation and concrete floor slab . not to mention floor finishes . and repaint your walls and doors ( cutting concrete is major dusty :() jaysus i feel for you

    if your layout allows ( i.e. say you have a bathroom over a utility ) you may avoid the vent trench by rising it vertically and out at high level , either through the roof of the wall at high level .

    you MIGHT be lucky - your builder might have provided all of this but you unwittingly buried the outlet in your footpath area . do you have progress photos to review ?


  • #3
    sydthebeat
    Subscribers Posts: 42,172 ✭✭✭✭sydthebeat


    retro-fitting a radon sump or radon membrane is an expensive messy job.... so much so it would probably easily negate any financial gains from the renewal scheme.

    The first thing i would do get a radon measurement taken in the dwelling. If this shows safe radon levels then i would put this to the inspector.

    Is there an existing cert of compliance on the dwelling??? was the builder Homebond registered??


  • #4
    pete6296
    Registered Users, Registered Users 2 Posts: 351 ✭✭pete6296


    Hi,
    200Bq/m^3 is the level you aim to be under. It really depends on the area in which your build is.
    I personally have a device that measures radon levels over a period of 48 hours, if these are found to be high, remedial action is advised. It all depends on location.
    If you require further info, i would be glad to help


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