Residential Roof Flashing Details

Click to enlarge make sure the sheathing wrap overlaps all step flashings.

Residential roof flashing details. 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. Pre flashing the coping to wall termination with membrane flashing e g. Flashing is installed to surround roof features such as vents chimneys and skylights. 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. Certain components as depicted in these details may not be provided by the roofing contractor. Problem area number 3.

Where snow buildup is likely add a wide band of peel and stick membrane lapped over the step flashing but under the sheathing wrap. 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. Common flashing details step flashing. Head flashings are used to direct water away from openings such as windows and doors.