Tiling on Bitumen: How Do You Do It?

Bitumen, or asphalt, is a type of substance commonly used as a protective coating for floors. It is the semi-solid form of petroleum; thick, dark and sticky like tar. Bitumen can be problematic for tiling over and cause unnecessary damage and stress – the last things you want to endure during a renovation project.

The main problem is that most adhesives and levellers will not apply properly if there is Bitumen present. Later down the line, this will cause your tiles to lift or crack. But fear not – there are now solutions available that will save you a lot of bother trying to remove tacky Bitumen by hand.

A less costly recommendation is the floating uncoupling mat, ideal for light commercial and domestic projects. This rollable waterproof mat can be simply laid out over your substrate, without the need for adhesive. Cut to the precise measurements of your floor space with ease using scissors or a Stanley knife, and apply a mesh joint tape to seal together and prevent moisture from getting through.

Alternatively, you could go for an eco-friendly, water-based primer. Immediately ready for use, it can be poured straight from the can onto your substrate to create a fine, uniform film. Always ensure first that your substrate is free of dust, oil, and grease, with no loose or flaky residues. Once hardened, your primer will be able to withstand light foot traffic. Immediately wash any tools, sponge rollers, and brushes used with water before the product hardens.

How you choose to tackle Bitumen really is down to personal preference, as well as how much you are willing to spend. But rest assured, there are ways to clear this common hurdle with plenty of patience and determination, so you can lay your floor tiles with peace of mind knowing they will not get damaged over time.