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Roofers Face Flood of New State Laws,” JLC Report, 2/13

Here’s a rule that way too few roofers seem to adhere to: Don’t leave asphalt shingles or felt paper in contact with — or within one inch of — double wall gas flues. Also, make sure to orient the flue into the middle of the roof-decking cutout, rather than trying to make it work with your row of shingles. — mbishton