My valleys are deteriorated and leaking. Roof is asphault shingles. I don't know the terminology but the valley is not the woven shingle type. It's a continuous piece of asphault with aluminum flashing underneath. The roof, about 12 years old. The rest of the roof looks ok. How do I fix it? Do I have to remove (and replace) one shingle either side the whole lenght of the valley to do it right? John
- posted
17 years ago