Metal Roof Flashing Around Dormers

There are two good ways to handle corner flashing.

Metal roof flashing around dormers.

Place this in the valley on each side of a gable. Run the base flashing 4 to 5 in. The first bending two pieces and caulking the joint photos 1 3 is the most common because you can do it on the spot with the flashing at hand. Put horizontal flashing across the bottom of a front dormer wall.

Fasten one edge of the flashing up the dormer wall. Ideally this custom flashing will have soldered corners but if not carefully notch the metal at the dormer corners and wrap the vertical leg around the corner onto the side wall. How to install roofing around dormers 1. Bend the flap down and nail along the top edge.

These problem areas include the edges of skylights and chimneys soil stacks vent fans and roof valleys as well as the intersection of the roof deck and dormer walls. Beyond the dormer and cut the top section along the dormer edge. 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. Most flashing is made of galvanized metal but diy ers may prefer aluminum flashing because it s easier to bend.

Flashing provides the extra protection these spots need. Install metal flashing at every dormer roof to main roof connection. Outside the house the new vinyl siding on the side of dormer and the new roofing in a large area around the leak area were removed and saved for re installation. While the gold standard for roof flashing is soldered copper the fact is that for economic reasons the vast majority of roof flashing is done with aluminum.

Mosby installed an ice and water shield at the roof transition from the front porch and along the roof gutter line. 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.