Chipboard gone spongy

[surflaur]

Just pulled up a kitchen floor today where there had been a waterleak and the tiles had cracked etc. Pulled up the tiles and plywood (what a stink) only to find the chipboard is soaked right through. Said to the guy renting the house it will have to dry out for at least a couple of weeks for me to see if it is strong enough to relay 12mm ply on top.

Got a call this afternoon saying that when he moved his tumble machine back he stuck his foot through the chipboard! :mad2:

How can i get around this one? Is it possible to remove chipboard when there is a kitchen on top or should i lay ply down and fix to the joists where i can?

Help!:huh2:

 

[DHTiling]

needs replacing really.....cut off where it meets units etc( or nearest joist ).. and replace with wbp ply..Is the floor not overplyed to start with.?..

 

[surflaur]

needs replacing really.....cut off where it meets units etc( or nearest joist ).. and replace with wbp ply..Is the floor not overplyed to start with.?..

I dont think so, its chipboard straight onto joists.

 

[DHTiling]

If you are taking a repair job to someone else's tiling them be prepared for the worse scenario....and only guarantee the bit you do..don,t be responsible if the rest comes loose.....

 

[grumpygrouter]

Chipboard is going to need replacing. Dead Cert. If it has got soaked, it will never have the same strength and almost certainly will be distorted if it does dry out.

I wouldn't tile over it, even if it was overboarded with ply.

Grumpy