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1930s hose (wall damp and insulatind ground floor)

  • 07-09-2008 8:28pm
    #1
    cd76
    Registered Users, Registered Users 2 Posts: 82 ✭✭


    Hi,

    I have a 1930s semid-d house in dublin and have 2 questions if anyone could help pls !

    1) North facing dining room wall has damp in the corner, now creeping up nearly .5metre and 2 metres accross. Only noticed it when we came back after being away for 6 weeks so I guess the fact that the room was not aired for 6 weeks did not help and made things worse. We always had a somewhta musty smell afer other shorter periods of away. The wall was replastered about 10 years ago when we moved in and redecorated but obvioulsy must have not fixed the problem. The render outside is about 1 metre up the ourtide of the wall which is mass concrete in these houses(i think). We have never redone this.

    I am wondering what is the best way to approach this damp problem. Can I start from the outside and replace the render or maybe inject a dmp solution(are these any good/reliable) as the hose has no DMP from the 30s I suspect. I want to try and avoind internal rework if possible. Any ideas appreciated.

    2) Both the dining room(same one as the damp problem above) and the front sitting room have the original pine floorboards which we sanded 12 years and they look great. Howerver, underneath there is no insulation. The boards just sit on the joists which in trurn are on the earth. i.e there is no concrete or sub floor etc. Again I guess this was standard in the 1930s.
    What can I do to better insulate my house as I am losing a lot of heat with cold air coming up through the T&G flooring.

    There is a single air vent under the floor under both the front window(in the sitting room) and the back window(in the dining room). These vents are clear and vent to the outside. The rooms interconnect and we usually leave the interconnecting doors open. There is also a vent at the top of the large doubleglazed window in the dinign room.

    I'll be replacing the windows in the front sittingroom also as they are old aluminium/pvc windows with no vents.

    The front room has an open fireplace which we use. The rear diningroom fireplace has been removed and the fireplace covered with plasterboard but a vent has been left at the bottom and one can feel good airflow.

    Ideally I do not want to replace the whole foor. However if I have to take it up it may be dameaged beyond being worth to put down again. I need some advice on my options.

    Some people are saying take up the borads and "pour concrete" and then put them back down again. What is the best option. I want to do the job properly and if \I have to get new wooden floors I will. I do not want any other type of floor covering(eg carptets etc)

    many thaks for any advice. Much appreciateed


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