Bitumen based liquid DPM

30 Mar 2015
Reaction score
West Glamorgan
United Kingdom

I have painted a bitumen based liquid DPM (not the 2 part epoxy types that most other posts are about) on my damp concrete floor (1950s bungalow with no DPM and on a hill with possibly high water table). Still have moisture coming through (I think), and after further reading, 50mm of concrete is required to 'hold it down' and stop penetration from hydrostatic pressure. However, I cant raise the floor by that much so wondering where to go from here as not much sticks to this stuff? I've read about sbr/cement slurry and thinking that should stick and may be worth a shot to strengthen it and add to the water proofing? Am I digging myself a hole (...or should I be!?)

Any advice would be greatly appreciated.

Please see here for photos/more background info if required:

(Sorry for the double post but this section seems more appropriate)


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