Damp / wet floor in outbuilding joined to house

[Softus]

That's odd, because in my outhouse, which isn't tanked, I've eliminated the need for tanking by not having a whole bunch of water underneath the floor.

Where do you think your water has gone?

What water?

All you have done with a DPM below a new slab is created a barrier, that's what tanking does.

You seem confused. My outhouse has no DPM, or tanking, and it doesn't have a damp problem.

It's better to have DPM below the concrete slab but providing the moisture content is within the manufacturers allowable limits then no problem applying over the top.

Do you know why the OP has so much water/moisture?

 

[Monsoon]

You seem confused. My outhouse has no DPM, or tanking, and it doesn't have a damp problem..

you need to take up your tiles, break up the slab, and re-do the job properly with a DPM.

So what is it DPM or *no* DPM for the OP? On the one hand you recommend digging up and putting in a DPM, to do a 'proper' job. Then you tell us you don't have a DPM in your dry outhouse.

Do you know why the OP has so much water/moisture?

That's for him to establish, DPM deals with rising damp. As I said earlier, I'd certainly check the outside concrete slopes away from the building.

 

[Softus]

So what is it DPM or *no* DPM for the OP? On the one hand you recommend digging up and putting in a DPM, to do a 'proper' job. Then you tell us you don't have a DPM in your dry outhouse.

That's correct - my outhouse is dry. I don't have a damp problem. I have no idea why you're struggling so much with this.

Do you know why the OP has so much water/moisture?

That's for him to establish

So you're proposing a solution without knowing what the problem is.

DPM deals with rising damp. As I said earlier, I'd certainly check the outside concrete slopes away from the building.

I was giving you the benefit of the doubt, but I've come to the conclusion that you're a numbskull, so please don't be surprised if you don't get any more replies from me.

 

[Monsoon]

That's correct - my outhouse is dry. I don't have a damp problem. I have no idea why you're struggling so much with this.

What relevance is your dry outhouse to the OP?
Your solution involves digging up and laying a DPM, yet you tell that isn't the reason why your outhouse is dry.

So you're proposing a solution without knowing what the problem is.

We know what the problem is Only the man on the ground can really establish the source of the problem.

I was giving you the benefit of the doubt, but I've come to the conclusion that you're a numbskull, so please don't be surprised if you don't get any more replies from me.

What a clueless joker - How can I survive without your pearls of wisdom