Can Microcement Be Used in Bathrooms and Showers? Moisture Facts
Microcement is one of the best finishes for bathrooms and showers when it is built over a membrane and sealed. What goes into a lasting wet-area system.
Yes. Microcement is widely used in bathrooms and walk-in showers. It works because it is part of a system: a sound backing board, a waterproofing membrane, reinforced base coats, finish coats and a sealer rated for wet areas. Skip any part and problems show up within a year or two.
Why microcement suits bathrooms
No grout lines, so less soap build-up and mould.
One surface can run from the floor up the shower walls and into niches.
It can go over sound existing tile, so less demolition.
It works on curves, benches and built-in vanities.
The wet-area system
Cement board or another wet-rated board in the shower.
A continuous waterproofing membrane with reinforced corners and seals at the drain and valves.
Mesh-reinforced microcement base coats.
Thin finish coats for colour and texture.
Several coats of sealer, with a slip-resistant additive on floors.
Ventilation
A good bathroom fan matters. Steam that sits for hours stresses any finish. Run the fan during and after showers.
Common mistakes
Applying microcement straight onto drywall in a shower.
No slope or a poor slope to the drain.
Using a sealer made for dry floors.
Cleaning with bleach or vinegar, which breaks down the sealer.
Daily care
Squeegee after showering, clean weekly with a pH-neutral product and reseal every few years.
Next step
See finished bathrooms in our projects, or request a free quote with photos of your space.
Frequently asked questions
Can microcement be used in a walk-in shower?
Yes, over a waterproofing membrane on a wet-rated board, with a sealer made for showers.
Is microcement slippery in a shower?
It can be when smooth, so a slip-resistant additive is mixed into the floor sealer.
Does microcement get mouldy in bathrooms?
It has no grout, which removes the usual place for mould. Good ventilation and regular cleaning keep it clean.
Can microcement go straight onto drywall in a shower?
No. Shower walls need cement board or a similar wet-rated board and a waterproofing membrane.
