After you are all done with the linings of the ceiling and the plastering of the internal walls, waterproofing is usually the next step. You will need to waterproof your bathroom, laundry, kitchen, and powder room. You may decide to waterproof your basements (if you have one). Australian homeowners, over time, have been victims of damage caused by waterproofing systems installed incorrectly. And to fix this, the waterproofing requirements have continued to evolve. DIY Waterproofing If y..