Do I need to fill these gaps, or will my tiler just fill it?

JP_ · 2 Mar 2020

Putting up hardiebacker boards for tiler, but a gap in one place and a broken bit in another. Will a tiler expect these to be filled? Can I just use poly filla? Obviously another board still to go on next to where it is broken.

Jakg · 2 Mar 2020

Hardiebacker is water resistant.

Polyfilla - well it depends what you use.

The tiler will fill with tile adhesive, which probably isn't water proof.

For small gaps I'd use silicone.

foxhole · 2 Mar 2020

Should be no large gaps corners and joints sealed with silicon.

JP_ · 2 Mar 2020

Silocon it is then. Cheers!

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Do I need to fill these gaps, or will my tiler just fill it?

JP_

Jakg

foxhole

JP_

DIYnot Local

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