help........mould/condensation

[Martynrbell]

Ill give this a go.
Think it will work on top of tiles too? Easier to get to then the wall haha

 

[JohnD]

Glazed tiles are waterproof

Except usually the grout.

You have got to do it on the wet patches.

Are your tiles wet?

Is the grout?

 

[noseall]

You can easily prove/disprove condensation.

Tape a piece of clear plastic or clingfilm tightly to the wall.

If water forms on the room side of the plastic, it is condensation.

If it forms on the wall side, the wall is wet.

Try some other areas of wall as well.

And the floor.

Seems to me that the test would be heavily biased towards the damp wall rather than the damp room, owing to the material used i.e. cling film. Aluminium foil may yield a fairer result.

 

[Martynrbell]

I guess my issue is ... the wall isnt wet anywhere i can reach

 

[^woody^]

You have a condensation issue, and you need to deal with that - ie how you are producing and removing the moisture you create, before you look for structural remedies.

 

[Martynrbell]

Mositure is gonna be coming from
The kitchen hob
The washer dryer
The dish washer
Probably the radiators.

I have an extraction unit when cooking on the hob, and i also have an extraction fan running 24/7 above the top cupboards that vents to outside.

Edit, i also have a PIV unit fittes in the loft space

How else would i deal with the humidity?
People mention a dehumidifier, but wheres best to put it?
Can you get ones without a tank that i need to empty

 

[Martynrbell]

I have a loft space in the kitchen, would another PIV unit help in there?

 

[^woody^]

If you have a PP unit fitted, then that means there is a condensation problem. You can't randomly fit another.

Those units do work, but must be designed, and there must be assessment of the home and exit vents fitted if needed.

Also, there should be instruction on use of the heating system and general guidance of controlling humidity - such as drying clothes, opening doors, how long to run fans for etc.

 

[JohnD]

Mositure is gonna be coming from
The kitchen hob
The washer dryer
The dish washer
Probably the radiators.

Or a leak

Or water penetrating the wall from outside

I can see moss growing at the base of the wall outside. That isn't caused by condensation.

There has clearly been long term damp because some idiot appears to have injected chemical into the joints directly above what appear to be impervious blue bricks, and let his child mortar them up with a teaspoon. That won't be for condensation.

 

[Martynrbell]

I dont think its a leak.
The roof has recently been repaired and there isnt any sign of moisture on the ceiling.
There is also no pipes in that section of the kitchen at all.

Water penetrating from outside... i dont even know where to start here.

 

[JohnD]

I guess my issue is ... the wall isnt wet anywhere i can reach

You'd better try to find some places to carry out the condensation test. If it is condensation it will not be localised to the foot of the wall.

 

[JohnD]

There is also no pipes in that section of the kitchen at all.

I bet there are.

Isn't there a water pipe buried in the floor?

Isn't there a drain in the ground just outside the kitchen wall?

 

[Martynrbell]

Right im back with images from outside, unfortunately it was raining.
In the image you can see the drainpipe, but ive looked in and it flows away from this corner.
I wouldnt know how to look for leaks in pipes or drainage that is under the driveway.
Any tips?

 

[Murdochcat]

How high above the patio is the DPC ?

 

[Martynrbell]

Treat me as if im dumb, how do i dentify theDPC?