Asphalt/bitumen floor repair before screeding and fitting amtico

[Mickey-B]

Hi all....this is my first post and hoping to get some advice..
So the attached images are the lounge foor in my 1950's ex council house which I think has a layer of asphalt and bitumen which seems in ok condition apart from around the edges where it is breaking up (from carpet grippers being banged in I think)
I want to have amtico tiles fitted but am not sure about how to repair the cracked edges before screeding?
Could I remove the loose bits of asphalt and fill with concrete Then screed? Should I paint bitumen paint then concrete? Would just screeding fill the cracked asphalt?
Any advice would be appreciated

Cheers
Mickey

 

[Deleted member 174758]

Another solution might just be to ply the lot with 6mm plywood.

On advice from a commercial floorer I've worked with in the past I recently used Ardex P82 water-based epoxy sealant on a floor where I'd previously ripped out a badly worn and damaged parquet floor that had originally been laid onto asphalt over concrete. Where the asphalt had become loose it was brushed up and the hollows vacuumed out first, then the P82 sealant applied. This stuff is pink and very sticky, so once it's down don't walk on it until it has set fully as it marks really easily and transfers to absolutely everything (don't ask how I know...). It also needs to be laid fairly promptly once mixed. Afterwards I used Ardex K15 self levelling compound I initially spread with a metal plastering float to deal with the hollows. I'm pretty sure that F Ball, Bal and Mapei do similar materials. I only went with Ardex because we have a fairly local supplier who happened to have it in stock. Not cheap, though. BTW don't mix suppliers and if you are in any doubt read the spec sheets and consider calling the relevant manufacturer's technical support line

 

[dazlight]

Take out any loose Ashpalt
Fill holes with ardex A46 rapid repair
Then de-grease the whole floor to get it clean. Then use a liquid dpm over the top before a screeding compound

 

[Mickey-B]

Thanks alot guys for getting back to me... I'll look into the ardex stuff you have mentioned above
Cheers
Mickey

 

[Jack Phillips]

Hey Mickey. How did you get on? I’ve got the same issue.

 

[PaulMc29]

Hey how did you get on? Have the same issue in the property we are currently renovating where the studwork has been removed and some of the bitumen has broken off and need to fill.

Paul

 

[crazydaze]

Hey how did you get on? Have the same issue in the property we are currently renovating where the studwork has been removed and some of the bitumen has broken off and need to fill.

Paul

Dazlight's post is exactly how the profesional trade would deal with this situation, you can't cut corners with the floor being damaged like that, the liquid DPM treatment is essential.

 

[Mickey-B]

Hi guys

I ended up leaving it to my floor fitter, and he did do pretty much what dazlight recommended however i cant confirm what brand etc he used sorry.
My flooring has been fitted for nearly 2 years now and have noticed no issues.
All the best