Hi Guys, Currently bathroom and ensuite have lino floors. Subfloor is 22mm P5 Green T&G Chipboard screwed on to 230 x47mm joists at 400mm centres. Wifey wants tiles on floor in both along with new suites. I don't want to rip up existing Chipboard due to stud walling sitting on top of it. What's the best way forward? Cheers in advance.