I'm getting condensation inside the west facing wall cavity of my 9 year old ranch house. I first noticed the issue when I smelled mold next to the bottom of the wall. I removed the baseboard and the bottom few inches of drywall and I had moisture in the cavity. At first I thought the moisture was due to a leak but the moisture came back when we didn't have any rain. The condensation is collecting on the insulation side of the vapor barrier. The vapor barrier is between the drywall and the studs. The wall has fiberglass batt insulation in it and the exterior wall surface is brick over OSB sheathing. Please help.