Laying slate tiles on to bitumen
Asked by... Steve from Worthing

The Question

We have black stuff on our concrete floor (may be cut back) its not sticky its smooth what primer could i put on top before laying the slate or what should i do
 

The Answer

We would recommend that if you are just laying slate tiles on the adhesive then to prime with 1:1 adhesive & Acrylic Bonding slurry. If you need to use a levelling compound then you must use an epoxy primer. The reason to do this is the adhesive is more forgiving on bitumen than levellers. We would also advise you use a flexible adhesive to lay your slate tiles on to the substrate.

- asked before 2013
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