Need help locating source of leak. We have a 5 year old single story home with brick and vinyl exterior and an asphalt shingle roof. We found wet carpet under our china cabinet. No wet spots on the wall or ceiling. We checked the attic and crawl space and found no wet spots. We then opened the drywall and found two stud cavities wet, a rotted sill plate, and rotten sheathing. The outside wall is bricked up to about the ceiling height, then vinyl siding on up to the roof line. Also, there is a gutter above the wet area, but the gutter looks OK.