Amral posted:My bay window is leaking rass. I think water is getting through the outside siding and finding a path to the downstairs window
Sometimes after years the walkway slopes toward the house, water runs off toward the wall and all it needs is to find a small crack..bingo.. leaks. When possible, walk around the house checking where the soil has eroded from the wall and build it up. Nothing should slope toward the house.
My buddy had a leak in his basement caused by one of the kids buckets lying against the basement window frame which had a slight hole, rain water filled the bucket which spilled over and into the crack. That costed him a bundle by the time it was caught.