kitchen floor

[haventaclue]

I have a fifth floor flat that has sound proofing floor. I also had a slow leak from the washing machine. We fixed the leak - didn't think about the floor. Then I replaced the floor from vynyl to vynyl adding in a layer of hardboard. At this point we noticed dampness - on the advice of the flooring company we left it to dry for a week with nothing on it. The new floor went down - the hardboard was stapled with the vynyl adhesived on all and fine until within two weeks the hardboard started to warp - badly. The floor people intially thought we had a further leak but when they couldn't find anything decided that its probably the soundproofing stuff that looks a bit like horsehair under hardboard that had potentially held water and staples had allowed it free access to travel up the the new hardboard. I have now got a problem of what to do. On taking up the new floor and hardboard the orignal floor is damp and now mouldy. Can I use an antimould layer and then put down tiles to allow the under floor to breathe? Or do you think the soundproofing floor needs to come up? - expensive!!!
Need advice please!

[RemedialExpert]

if the sound proofing is fibrous or a compressed board in a cavity in the floor then it all needs to be removed and either dried or replaced.
That is the only option, there is nothing a specialist can advise about this im afraid mate, its just find the cause, ventilate any sodden areas and materials, reinstate...

[haventaclue]

thanks very much- I have a man coming around this morning who has indicated the same answer - he is going to have a look.