i've been converting my oversized garage into a bar, i've battened out all my walls insulated them,boarded them and had them plastered. i've done the same with the ceiling. i've now had my concrete floor self leveled (used self leveling compound) about 5 weeks ago (IT WAS VERY DRY,POWDERY AND STONEY AT FIRST) and its still not totally dried out in places. When we first did it it seemed to dry fully for couple of days then the next day i went in and there was water on the surface in places. ever since its been damp in areas, i don't now if its because theres no heating in there yet ( i was told not to dry it with heaters) or if its because theres bad ventilation. i've recently been opening the double doors all day to dry it out this seems to work but again it comes back the next day.
Im stuck to now what to try next, i've thought about putting a dehumidifier in there to clear any excess moisture in the air would this help? Should i put heaters in there now? or could it be worst than that, could it be that the moistures coming from the ground!! I really hope not.
Please could any one help at all.
Thanks Dave

is there a damp proof membrane on the floor!!

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Thanks for reply.

Yes there is a DPM, and before i put the floor leveling compound it was really dry the floor so this is why im really stuck with what i can do to solve this. Is there any paint or solution i can put on the floor to seel it? Thanks

Hi Flame,

Start off with dehumidifiers until you get the heating on, I can't think why the floor should know be pooling, all I can think is the moisture content in the new plaster, water condensing and dripping onto the floor, can you post pics? Did you allow any through wall ventilation?

S

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