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CHAPTER 10 FLASHING - asphaltroofing.org
over the shingle and vent pipe. Place the flange over the pipe to lay flat on the roof as shown in Figures 10-5a and 10-5b. Inspections should be performed once a year to check for cracks in the flange. A variety of boot styles are available on the market, so refer to the flashing manufacturer's installation instructions.
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