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 Post subject: Help please
PostPosted: Tue Oct 31, 2017 2:23 pm 
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Hi there, i wonder if anyone could give us an indication as to how to solve our quite a big problem inexpensively. I mean not to spend thousands.
We have an outer space that doesnt have heating but its still part of our house, its located just after our kitchen and there is only a door that seperates it from the kitchen. There is also a little slot where air get into the room. In this approx 4 sqm place there is a toilet, and opposite our washing machine. The problem we are having is this massive amount of mold that we have no idea what to do about. We have tried anti mold paint on it but only less than 2 years and it looks as horrible as you can see on the photos. I am desperate to do something with it as would love to have it looking nice as well not to mention, healthier. Looking forward to suggestions please. Thank you in advance!


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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 2:51 pm 
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You need to take a few methodical steps to find out what is causing the dampness. One possibility is that there is either no damp course or it is breached or no membrane in the floor. This would allow moisture to rise up into the block work and may lead to the issues you have. It could also be a roofing problem or guttering. So by a process of elimination you need to rule out these potential causes.

Can you take some more pictures of the outside roof/gutters level and at the floor/wall level please. There is no reason why you cannot tackle this yourself, we can guide you through it :thumbright:

DWD

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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 3:56 pm 
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Oh thank you very much for your quick reply. There is nothing on the floor other than concrete I think and no gutteridge direct on roof either. But tried to make a few pictures, hope they help.


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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 3:58 pm 
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Here are the photos


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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 4:15 pm 
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Single block construction? (Looks like it)
Possibly condensation. Is it worst on the coldest wall? The one that gets least sun?
Vent is possibly drawing warm air from house / kitchen into the space, moisture from warm moist air is then condensing on cold blocks.
Possibly another vent would help on the opposite wall, or insulating the walls might well help.


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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 5:14 pm 
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I see. Yes i think its single block. It gets more on the outer side. Has it everywhere lol but more on that side. So insulation would be the best solution do you think? Thank you for your help.


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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 5:46 pm 
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This is the sort of thing that will greatly help https://www.youtube.com/watch?v=X4QWdw5vmok Similarly the floor can be insulated using a floating floor see https://www.youtube.com/watch?v=bIhlxN6Gr4o The roofing is a simple drip sill and putting some guttering up will also help.

All achievable with minimum skills and tools.

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For this message the author dewaltdisney has received gratitude : Dave54
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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 5:53 pm 
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Farkywelly wrote:
I see. Yes i think its single block. It gets more on the outer side. Has it everywhere lol but more on that side. So insulation would be the best solution do you think? Thank you for your help.


Difficult to say that any one thing is a guaranteed fix on a forum really.
Make sure the structure is OK as DWD says in his first post above.
Flat roofs are notorious for having leaks. Is there a lid on the toilet seat that's kept down? Are there any water leaks anywhere?
A louvred cover on the vent would help stop rain penetrating.
Once all the structural stuff is OK, then it could be condensation. A bit of heat in there, a bit of ventilation, and wall insulation would help if it is condensation.
What type is the door between the kitchen and that room? Is it kept closed? Do you have a kitchen extractor fan that is used when cooking? Do you dry clothes in the house?


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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 6:39 pm 
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Apart from the walls, your main problem is you have a cast in situ concrete roof.


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 Post subject: Re: Help please
PostPosted: Tue Oct 31, 2017 7:10 pm 
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cotswold builders wrote:
Apart from the walls, your main problem is you have a cast in situ concrete roof.


agreed, they are never going to work well. probably a 1950's build ?

Best plan is to knock it down and rebuild to current standards.

You might be able to seal the concrete slab to the walls and insulate inside buuuutttt that may only last a few years.

water ingress at the join between the walls and ceilings and condensation...

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 Post subject: Re: Help please
PostPosted: Wed Nov 01, 2017 6:10 am 
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Thank you very much guys. Yes it is 50s built.


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 Post subject: Re: Help please
PostPosted: Wed Nov 01, 2017 9:11 am 
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I take it this is an ex council house? These outhouses were built for storage or coal etc and were never really intended for habitation. This does not mean that you cannot turn it into habitable space and as I have said earlier lining and insulating the walls will help considerably. Additionally the ceiling needs the same treatment (as pointed out by Cotswold) and extending the heating system in there (as suggested by Dave) would be advisable too.

Now you have to decide if the return you get from the extra living space is balanced against the cost of the materials and work to make this happen.

DWD

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