Mould On Skirting after Damp-proofing

[matsouth]

Hi All

Really in need of some help from some experts on here.
We recently purchased a mid-terraced house and had the damp proofing done throughout. The guys knocked off the plaster, drilled holes and injected what looked like some sort of silicone based product into the walls.

We've since re-plastered and put the skirting boards on.

About 2 months after this mould has started to grow on our skirting boards, only where the damp proofing has been done though.

Please take a look at the photos.
Unfortunately the guy also did some building work for us and left before the job was finished, obviously we're not on speaking terms and the likelihood of him helping us out under warranty is nil.

Any help would be greatly appreciated. We will get another damp company in but I wanted some independent advice first.

Thanks

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• matsouth
• 14 Sep 2013
• 1

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• matsouth
• 14 Sep 2013
• 1

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• matsouth
• 14 Sep 2013
• 1

 

[JohnD]

I expect you had the chemical injection because there was damp. There still is damp, hence the mould.

Injections are not much good.

The damp is caused by a source of water. This water might be a leak; or a dripping gutter, or earth piled up against the wall, or blocked airbricks preventing ventilation of the underfloor void..

If you find the source of the water, and correct it, then the damp will go.

Post some more pics, showing the outside of that wall, and we might have some ideas. Is it a concrete floor?

 

[matsouth]

Hi John

Thanks for your comments.
OK the floor is Quarry Tiles. There is still damp - see in the photo here:

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• matsouth
• 14 Sep 2013
• 1

This wall is part of the chimney breast, the wall without the skirting in my original post is the wall between us and the adjoining terrace so no outter wall to show you.

We do have an outter wall to the left of that photo, this is a picture of the outside wall:

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• matsouth
• 14 Sep 2013
• 1

The mould is apparent in all the walls that have been treated.

 

[JohnD]

a quarry tile floor, if original, suggests a kitchen. Is it? Was the house built with all concrete floors? how old is it? If you look at the outside stopcock and the kitchen sink, try to work out the route of the water supply pipe. Is it under a damp patch? Have you got a water meter, and does the bubble ever stop?

Stand back and take photos of that wall showing any drains and downpipes.

Is the chimney ventilated top and bottom?

 

[Johnmelad]

Rising Damp, costs you a lot of money and is a myth.

 

[JohnD]

if you invite a company into your home that sells damp-proofing treatment, you can expect them to tell you that you need to buy damp-proofing treatment.

The water is coming from somewhere. Find out where, and stop it.

 

[matsouth]

if you invite a company into your home that sells damp-proofing treatment, you can expect them to tell you that you need to buy damp-proofing treatment.

The water is coming from somewhere. Find out where, and stop it.

True, but we did have an independent survey on the property which highlighted the damp issue beforehand - we were advised to have damp proof treatment so we pursued a firm to come in and provide a quote.

The picture I posted of the damp wall is our living room, this has a quarry tile floor, as does all the house downstairs, built circa 1900.

The chimney breast used used to house a fossil fuel back boiler many years ago and has been out of use for at least 5 years, and all the pipework and boiler etc was removed prior to moving in.

The fireplace is now a feature of the room - we also had the chimney swept before we moved in under advice of our builder, to help with ventilation.

We also have mould on the skirting in the kitchen and in the front room so it is not just this area.

When we bought the house there was an old carpet down and the previous owner had underlined it with plastic (presumably to stop damp coming through the floor). Once we removed this the whole floor needed to dry out.

 

[JohnD]

1900 house? I bet the water pipe is leaking unless it has been replaced wuth plastic.

the neighbours pipes may also be leaking.

there will be no DPM in the floor.

Have you got a water meter?

Is the chimney ventilated top and bottom?