Damp uneven concrete floor - should I screed ?

[highlandhouse]

Hi all. I have a living room where half the floor is sound level concrete, the other half is older, lower - ranging from 5mm to 15mm, and uneven. Also its damp in patches. I was planning to screed it level with the good floor. Is this a good idea and if so how can i rid it of damp given that I will need to use such a thin screed ?? I plan to lay carpet on top. Please help !!

Many thanks....... :D

[stoneyboy]

highlandhouse,
You should cure the damp problem before levelling the floor, this may well mean that you will have to dig up the floor, incorporate a DPM and relay the floor.
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