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Condensation in house

2»

Comments

  • #52
    cletus
    Registered Users, Registered Users 2 Posts: 8,228 ✭✭✭cletus


    whitelightrider wrote: »
    What kind of internal vents did you use?

    https://goo.gl/images/WF8gkY

    This vent cover exactly.

    Cost was maybe €10-12

    Wavin was free from local building site.


  • #53
    hatchman
    Registered Users, Registered Users 2 Posts: 317 ✭✭hatchman


    If you are drying clothes inside would a normal vent be adequate to eliminate all the moisture generated ? Surely in this situation a dehumidifier would be advantageous?


  • #54
    whitelightrider
    Registered Users, Registered Users 2 Posts: 3,100 ✭✭✭whitelightrider


    Are there any vents that can be closed if the air flow is too great? Like passive vents?
    We've identified vents in all rooms that we're going to open, bar 2 which face into the wind. And on this hill, opening those would mean a gale going through the house :)


  • #55
    whitelightrider
    Registered Users, Registered Users 2 Posts: 3,100 ✭✭✭whitelightrider


    Has anyone ever installed one of those Drimaster units?  Looking online and they seem to be a solution to condensation and mould in houses.


  • #56
    .......
    Closed Accounts Posts: 9,057 ✭✭✭.......


    This post has been deleted.


  • #57
    denismc
    Registered Users, Registered Users 2 Posts: 1,590 ✭✭✭denismc


    whitelightrider wrote: »
    Has anyone ever installed one of those Drimaster units? Looking online and they seem to be a solution to condensation and mould in houses.

    I friend of mine got one and is very pleased with it, it seems to have solved his damp problems in a very short time.
    Although an engineer pointed out that this is not the best soloution in a timber framed house as you are pushing moist warm air out through the timber work, whick kinda makes sense.


  • #58
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭Ush1


    Funny the posters attacking the use of a dehumidifier are recommending "passive ventilation", essentially a hole in the wall.

    Do they really think that's a solution?

    From my reading on it, a dehumidifier is a decent solution if MHVR is not viable for whatever reason. At least with a dehumidifier your home retains heat and is draft free.


  • #59
    beauf
    Closed Accounts Posts: 22,648 ✭✭✭✭beauf


    A dehumidifier relieves the symptoms not the problems.

    So the question is why do other houses not need a dehumidifier and only some do.


  • #60
    listermint
    Registered Users, Registered Users 2 Posts: 34,322 ✭✭✭✭listermint


    Ush1 wrote: »
    Funny the posters attacking the use of a dehumidifier are recommending "passive ventilation", essentially a hole in the wall.

    Do they really think that's a solution?

    From my reading on it, a dehumidifier is a decent solution if MHVR is not viable for whatever reason. At least with a dehumidifier your home retains heat and is draft free.

    Okay we will submit to your clearly superior knowledge of not allowing fresh air into your home.

    Come back in some time and give us a health report.


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  • #61
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭Ush1


    listermint wrote: »
    Okay we will submit to your clearly superior knowledge of not allowing fresh air into your home.

    Come back in some time and give us a health report.

    Allowing fresh air into your home amazingly doesn't require a permanent hole in the wall in every room.


  • #62
    listermint
    Registered Users, Registered Users 2 Posts: 34,322 ✭✭✭✭listermint


    Ush1 wrote: »
    Allowing fresh air into your home amazingly doesn't require a permanent hole in the wall in every room.

    No one said it did but you. Try again.


  • #63
    thegills
    Registered Users, Registered Users 2 Posts: 1,802 ✭✭✭thegills


    whitelightrider wrote:
    I think the easiest option for all rooms is to open the vents and install the vents inside. My only concern again, is the draft issue. Being on top of a hill and wide open, I dont want an issue where the rooms are cold or a gale is blowing through


    Why not open one vent and see if a game blows through? You can always block up the vent again.


  • #64
    billbond4
    Registered Users, Registered Users 2 Posts: 2,432 ✭✭✭billbond4


    Dont bother with those ****ty vents i got these
    http://www.iconbp.ie/anti-draught-wall-vents/ a lot better and they can be closed nearly all the way, which would suit you better


  • #65
    Ush1
    Registered Users, Registered Users 2 Posts: 11,482 ✭✭✭✭Ush1


    listermint wrote: »
    No one said it did but you. Try again.

    You're great craic :)


  • #66
    hatchman
    Registered Users, Registered Users 2 Posts: 317 ✭✭hatchman


    I have read and seen the extents some people go to make their homes air tight and how very very difficult it is to achieve a good score. So with that in mind it would lead me to believe that a standard build or below passive house standards would have massive amounts of air entering the house even without wall vents. So in fact fresh air would always be entering the building. Running a dehumidifier in this type of build would without doing a study not seem cheaper and more dependable than filling a house vents and running the heating more ?


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  • #67
    beauf
    Closed Accounts Posts: 22,648 ✭✭✭✭beauf


    That's like saying instead of using insulation we should just turn up the heating.

    Running a dehumidifier is fine. But if you could fix the problem then not need the humidifier, that would be better no?

    The problem is that damp and in particular condensation and ventilation, is not always simple and/or cheap to fix, if there are faults with the building. In particular with the design.


  • #68
    rolion
    Closed Accounts Posts: 3,362 ✭✭✭rolion


    Hi OP,

    The biggest mistake some people makes these days is insulate the house with best solution / materials and then leave the vents wide open for ventilation and losing the inside hot air exchanged with cold air from outside !!

    I have been in your situation some time ago.
    I did insulate my house just to find that day time was very warm and night time almost imposible to sleep due to low quality air and in the mornings,i could drink the water off the windows.

    It took me two weeks to discover that due to insulation,closed/sealed vents in the walls and all the windows i needed MHRV.
    I had to do it DIY for my own safety and comfort and not laslty,for the building health as well.

    In the end and after crashing my budget and breaking the nails,fingers and lots of plasterboard holes,i did it nicely.
    I reckon is one of the best things done to my home,free condensation,fresh and warm air every/any time of the day(nicer feelings in the morning' bed) and my house is "feeling" better.

    Apart of more or less silly comments above between more or less adults,i suggest to seriously begin looking in to a MHRV or "heat recovery" system installed,specially with the children at home !

    Good luck.


  • #69
    RTT
    Registered Users, Registered Users 2 Posts: 317 ✭✭RTT


    rolion wrote: »
    Hi OP,

    The biggest mistake some people makes these days is insulate the house with best solution / materials and then leave the vents wide open for ventilation and losing the inside hot air exchanged with cold air from outside !!

    I have been in your situation some time ago.
    I did insulate my house just to find that day time was very warm and night time almost imposible to sleep due to low quality air and in the mornings,i could drink the water off the windows.

    It took me two weeks to discover that due to insulation,closed/sealed vents in the walls and all the windows i needed MHRV.
    I had to do it DIY for my own safety and comfort and not laslty,for the building health as well.

    In the end and after crashing my budget and breaking the nails,fingers and lots of plasterboard holes,i did it nicely.
    I reckon is one of the best things done to my home,free condensation,fresh and warm air every/any time of the day(nicer feelings in the morning' bed) and my house is "feeling" better.

    Apart of more or less silly comments above between more or less adults,i suggest to seriously begin looking in to a MHRV or "heat recovery" system installed,specially with the children at home !

    Good luck.


    Could you please PM me with some pics of the system you installed? I will possibly do the same down the line. Was it ewi or iwi that you installed? Did you take humidity readings before and after the installation of your MHRV system?


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