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Water proofing a single skinned util's room - any pointers?

Discussion in 'Building' started by oliwatts, 10 Mar 2009.

  1. oliwatts


    10 Mar 2009
    Thanks Received:
    United Kingdom
    Hi guys

    I need some advice regarding securing my single skinned utility room / conservatory against water and possible damp.

    I recently moved in to my new home which has a small utility room / conservatory built on the back of the kitchen, it's heated and seems structurally sound. It's build of a single skin of concrete blocks to about 1.2meters, the rest is PVC glazing.

    I think the blocks are laid directly onto concreted ground or just below with concrete poured against the first visible course. Problem being, I can't see any attempt to put in a DPC of any sort and the area is prone to small amounts of standing water as the drainage is soak-away and occasionally over flows.

    Example photo, not great but it might help, beneath the laminate flooring it feels a little damp: http://i122.photobucket.com/albums/o243/OliWatts/IMAG0051.jpg

    I've heard of a chemical DPC but I think the concrete blocks aren't porous for such a treatment. Another alternative I've heard of is 'Tanking' like in a wet room but I don't know what they will do to the concrete blocks stuck on the outside of the proofing.

    I'll also be looking to hookup the drains properly to what is currently heading for the soak-away, that will limit the standing water but not really solve the problem of shoddy building work care of the previous owner.

    All in all it doesn't appear to be doing too badly but long term I don't want any problems.

    Any advice would be gratefully received.
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  3. ban-all-sheds


    27 Aug 2003
    Thanks Received:
    United Kingdom
    I wonder if he did carry out an unauthorised connection to the main drainage?
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