Residential Roof Flashing Details

Certain components as depicted in these details may not be provided by the roofing contractor. Pre flashing the coping to wall termination with membrane flashing e g. The defect consists of the improper integration of the roof underlayment and the metal drip edge collectively referred to as the eave flashing figure 13.

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Drip edge metal valley flashing dormer chimney and kick out flashing shed water away from the connections between roofs walls chimneys and other building assemblies this collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs right in the real world.

Residential roof flashing details.

Eave flashing based on the author s experience this is one of the most common residential roof flashing defects of all time. Click to enlarge make sure the sheathing wrap overlaps all step flashings. Where snow buildup is likely add a wide band of peel and stick membrane lapped over the step flashing but under the sheathing wrap. Stepped flashing is used where a sloped shingled roof intersects a vertical wall.

Where a slope roof meets a sidewall slip the upper legs of the step flashing under the sheathing wrap see illustration. Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer. With self adhering membrane is suggested prior to installation of sheet metal saddle flashing. All flashings must integrate with adjacent materials so water always flows to the exterior following the shingle principle.

Head flashings are used to direct water away from openings such as windows and doors. Common flashing details step flashing. Flashing is installed to surround roof features such as vents chimneys and skylights. Problem area number 3.