Damp Concrete Floor

gpos

What would be the best treatment for a damp concrete floor in an old house? I have found dampness under carpet tiles, lino etc.

Would a damp sealer (paint) help?

Thanks

BryanF

gpos wrote: »

Would a damp sealer (paint) help?

what if this moves the damp to edge of the slab and up the walls?

the best treatment is to get a professional to assess the source of the damp and solve the problem

sealgaire

inspiring advice in the D-I-Y forum! LOL

Merch

Normally, I get a bit miffed if I post in DIY and then I'm directed to the professionals, but the other poster did raise a good point, it may redirect the damp elsewhere.
I'm sure someone will be able to help??

I'm interested to know how its dealt with, I plan at some stage to get a conservatory/extension done (its a long way off) but I'm curious to know how they will integrate the damp proof membrane into the existing membrane which is buried in the walls without damp seeping up or via capillary action.

Is there a damp proof layer in the walls?

BryanF

Merch wrote: »

the other poster did raise a good point, it may redirect the damp elsewhere.

thanks. damp specialists tend to have equipment that can assess the source of moisture, a level above the usual timber moisture meter that's sold to the public
[/QUOTE]Is there a damp proof layer in the walls?[/QUOTE]
post 80's houses yes. investigation required pre 70/80. but there are ways of avoiding this issue

Merch

At the same time I can appreciate where the OP is coming from, they may be looking to see if there is something they can do before they escalate the problem or they may not have the funds to divert to major work, even if they need it.

Spread

BryanF wrote: »

what if this moves the damp to edge of the slab and up the walls?

the best treatment is to get a professional to assess the source of the damp and solve the problem

I cannot see how painting a damp blocker might force the dampness to migrate up the walls. That would have already happened .......... unless the lino is porous.

bugsntinas

we had the same problem as the OP due to the idiots that "renovated" the cottage putting down a concrete floor in the sitting room without insulation or damp proofing.the only way we could sort it(due to money)was to lay down some dpm we had left over from laying the kitchen floor properly.we then laid the carpet straight on top,couldn't afford underlay:(

gpos

Thanks for all the posts. There is a damp proof layer behind the drywall. We have some dampness on the bottom of the walls too. We have got a professional coming tomorrow. I will keep ye posted.