Hi everyone, my first post 1965 bungalow, removed vinyl tiles, old bitumen/asphalt acting as DPM about 15-20mm thick, should I remove it completely and pour some kind of liquid DPM? You can see in the photo that there is some kind of dpm in the wall. Property was empty for 2 years, very dry, no damp. Many thanks. Les
This bitumen is in every room in the house. So tiles, carpet and laminate flooring. Bike is Honda 125cc but it's not mine Thank you
I think it would be better to leave the bitumen in place and use a self levelling compound over it - to level it and seal it. I am not familiar with the type you would need to go over bitumen, but I am sure someone else on the forum will be.
Thanks Dave. If it safe I really prefer to remove it because of smell and and I will get extra height in the rooms. It's coming off easily, cracking in pieces. Can I lay latex self leveling and dpm membrane on the top?
Yes you most certainly can. It's an established house so it's most likely that if there are any issues they will become immediately obvious when you remove the bitumen. Provided it's all nice and dry then the steps you need to take are minimal.
I think it is better to melt the bitumen and when it becomes hot liquid, pour it in the empty space, smooth its surface and give it a chance to harden.
I had similar in last place. Following advice here I scraped any loose off gave 2 coats of bostick liquid dpm on top with ardex na self levelled over to seal. Worked a treat
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