Waterproofing single skin walls

20 Feb 2011
Reaction score
United Kingdom
Appologies for the naff diagram.

My outhouse lets in water, surprisingly. It is concrete floor, concrete slab roof (with no overhang) and single brick walls. I can see no evidence of a DPC for the outhouse. How can I waterproof the walls? And what can I do about the floor? Most of the moisture seems to seep through the brickwork.

Effectively, I want to use the space as a wash house and fit a kitchen type sink and worktop into the area, along with a washing machine.

Sponsored Links

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local