Just looking for some experience probably from our southern group. Our area is almost exclusivly housed with basements. I was called to a house recenlty due to musty odors. I preformed four air quality tests (one outside) and test results did show that the home has elevated levels of Aspergillus and Penicillium. This house is a one story ranch that is built on a slab and into a small hill. There is no basement. It appears that the floor joists rest directly on the slab. I am suspect of the wall built into the hill (the entire south side)but cannot see under the floor without drilling holes or cutting wood. I have not yet found the source of the mold and am looking for any ideas (preferably non destructive) for being able to see under the floor. The only vent (to the underside) I found is in the furnace room and the furnace is blocking my access. I am headed back on Thursday 9/13 with some ideas but I am always open to suggestions from others.