Thanks for that. What it is is at there moment there is underfloor heating, however, whoever installed it didn't provide ventilation so the tiles are lifting. We have been advised to remove the existing floor and remove the pipes. This will leave a gap which will need to be raised to bring it back to the previous floor level. Under the pipes I presume will be the concrete slab, so it's either a concrete screed or the chipboard. Would this be easy to have a go myself??
yes its relativly easy but hard work.Make sure you clean the concrete floor so its as level as possible.Glue all the joints on the chipboard as you install it.If you want to raise the floor once the screed is removed you can buy 25mm 50mm or 75mm insulation.