Flashing is a thin sheet of metal, usually galvanized iron, called "tin." It can also be enamel-coated steel, copper, lead, or composition material. Flashing keeps water from entering the home at "transition" areas such as valleys or where the roof meets a wall. It is also necessary around large roof penetrations such as chimneys and skylights.
Small roof penetrations, such as plumbing and furnace vents, need flashing; and rakes and drips edges need flashing to prevent dry rot. Proper flashing is vital to a good roof job, because most leaks occur at areas that are improperly flashed.
Valleys on roofs are the FIRST area where leaks occur. On average, 30% of all roofers use "California Weave" or "California Cut" instead of valley metal. These non-metal applications catch more debris in the valleys causing premature wear and leaks. Also, roofers using metal flashing commonly don't paint to color-match your roof, resulting in a less attractive finish.
Integrity Home Pros Standards
Integrity Home Pros uses only GAF Weatherwatch that creats a 100% watertight seal that keeps water out at the most vulnerable areas of your shingle or metal roof (at the eaves and rakes, in valleys, around chimneys, etc.).
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