My home has an attached garage which is level with the house (not submerged or garden level). The outside wall material is brick and the soffits are aluminum. During a prolonged rain season (2 weeks of continual down pour), the garage ceiling wood looked damp in evenly spaced areas right where the soffit vents sit, as though water had blown in from the soffit vents. In addition, the inside of the walls, had water staining mostly at the top. Since it became very damp inside the garage, and it is unfinished, the roof and wall beams are now showing mildew. I do not know for sure exactly how the beams could get mildewed - in other words, I don't know if they actually got wet themselves, or if the overall moisture build up caused it. Does anyone know what kind of contractor I would call to troubleshoot the problem and determine if it is the gutter\soffit area, or if it is some failure of the outside wall that is letting water in? I don't know who to call to fix it as I am not sure what is actually happening. My thanks for any advice you can offer.