In North Carolina, we are expected to "probe for moisture," which is likely what he was doing here.

Federal law requires landlords to provide information to tenants about the prevention and clean up of mold.... order the EPA booklet "Mold and Moisture in the Home" available by website download or as a pamphlet.

The inspector did point out some evidence of water damage on the ceiling and stated it might be from the upstairs bathroom...it tested negative for moisture but probably bc the unit was vacant at the time. 

The inspector did point out some evidence of water damage on the ceiling and stated it might be from the upstairs bathroom...it tested negative for moisture but probably bc the unit was vacant at the time.

Few salesmen will tell you this, but NEVER use a window cleaner containing ammonia - - it will destroy the seal on the frame-glass contact and let moisture between the panes which ruins the whole purpose of dual pane glass. 

Once those older systems no longer see daily use and sit for years many die off.You need to review the condo budget and see if there have been pluses or losses the last 5 years and if the board is constantly changing over ( instability ).If it is in a bathroom then without a fan could be surface moisture.

Of course, the outside wall should be the barrier to keep moisture out.  

This just mitigates the risk that a renter will expose the material to too much moisture because they aren't going to be as conscious about it as a homeowner may be. 

I do not know anyone that thinks Dricore is worth the money in our area.To me it seems like it would cause a huge increase in the wicking of water into the sheetrock if there was a leak.Where would the moisture go if you seal off the 1/4 inch gap around the edge with vinyl?

I can tell you that laminate is very susceptible to moisture and liquids in general.