We're putting new bathrooms in our extension that is being built at present. By default, we're installing floating green chipboard flooring throughout the new areas of house, upstairs and down.
We have been debating long and hard over our preferred flooring for the new bathrooms. Initially we considered a black and white chequerboard tiled floor, but haven't found anything sufficiently non-slip.
We have since become interested in laying "proper" plank floorboards in the bathrooms and leaving these exposed. Is this a sensible option for a bathroom? I know that the wood can be sealed to prevent water penetration into the planks themselves, but will the floor as a whole be sufficiently water tight to prevent water going through it into the ceiling of whatever room is beneath the bathrooms?
Are there wood floor treatments that will improve the seal of the floor surface as a whole?
(Also, if anyone can recommend good non-slip black and white tiles we'd love to hear it)