Removed my floor tiles

[GetPlastered]

Hi all

I have removed all my floor tiles that have been stuck down with some sort of tar. Also i have removed most of the walls and am now stuck with 3 problems.

1. Is the tar stuff a dpm was built 1950s and needs re doing?
2. Will a self leveling compound stick to the tar?
3. Needs to be 10mm in the lowest points whats best?

Any help or abuse will helpfull.

 

[Chris W]

self leveller wont stick to tar...
petrol might shift it though...
deep base leveller will go from 5-50mm - wickes, about 12 quid for 20kg, does about a metre at about 10mm ish...
anything thinner use standard levelling compound, up to about 3mm, maybe 5 at a push

 

[MFW]

You can get a primer which is designed for self levelling compound, and it's suitable for use over bitumen floors, I've used it a few times and it works perfectly. Wickes have just started stocking it, it's in a 2.5 litre tub, and is a pea-green colour.