I’m renovating my garage laundry. There’s will be a laundry sink, toilet and a shower that is an all-in-one module so it comes with its own waterproof walls and floor. The laundry (and other rooms) are getting polished concrete floors this week (currently blue painted concrete in my photo) so I don’t need to put down a waterproof membrane (that’s how I read the building code). I’m planning to paint the three brick walls with Crommelin water based brick sealer and then paint over the bricks. There’s also one fibre cement sheeted wall. So, I think that means the walls will all be water resistant as per code. However, from my reading, I think I still need to waterproof the lower 150mm of the wall to meet code. Given there’s no membrane on the floor to “extend up”, how do I do this?
