How To Do A Dormer Roof With Metal

Mark the inside edges of the dormer s sidewalls in chalk.

How to do a dormer roof with metal.

Put horizontal flashing across the bottom of a front dormer wall. Drive nails up through the roof at the corners. How to install roofing around dormers 1. Mark the dormer wall layout on the attic floor and make sure the dormer walls are square with the exterior wall of the house.

Because this type of metal flashing can t be soldered making a leak proof joint where the flashing turns the corner at the bottom of the dormer called for special attention but i have a detail that handled the situation nicely. I have my valley custom made with water trough to help with leaking b. The top joinery of both valleys when they meet on the same plane of roof is shown here. This was overlapped by new housewrap and topped with new properly.

Place this in the valley on each side of a gable. Fasten one edge of the flashing up the dormer wall. Remove the shingles and the sheathing board from the area of the roof where the dormer will constructed. Affix the tarp to the roof screwing a 2 by 4 5 08 by 10 16 cm over it.

Install metal flashing at every dormer roof to main roof connection. 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. 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. For photos and the four steps to flash a dormer click the view pdf button below.