Hi, I'm converting the first floor of a barn attached to my house into a flat. The downstairs will be part of the house, therefore, I am told, the floor will have to be an acoustic floor to comply with building regs. I would like to use underfloor heating and, to make things more complicated, I have a headroom problem with the existing roof trusses that prevents me raising the floor too much. After much googling I've come up with the idea of using a 20mm chipboard floor floating on acoustic strips fixed to the top of the existing floor joists, with a 15mm engineered floor on top, also floating. Is this a viable solution? Can you use 20mm flooring grade t&g chipboard as a floating floor?