Flashing Shed Roof To Existing Wall

There sometimes is a problem with movement differences of the wall and the roof decking when the flashing is fastened to both the wall and the roof.

Flashing shed roof to existing wall.

Then the house wrap and exterior wall covering are installed over this roof flashing. Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings. Roof leg and a 7 in. Under the eaves of a roof with little overhang and no gutters.

The narrower step flashing just isn t wide enough to protect the intersection fully. A lean to roof also called a shed roof slopes in one direction with rafters that rest against another structure at their high end and overhang support posts or an exterior wall at their low end. Above a lower roof where it abuts the wall. Often with new construction the roof flashing is first nailed to the wall.

In all cases make sure to detail the flashing membrane so that it sheds water. It should tuck under the sheathing wrap above and over the flashing below. To install the roof wall flashing above the builder bent the top edge of the flashing into a 90 degree lip about 2 cm in width. Proper roof wall flashing example.

That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. 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. The most common roof to wall intersections involve either a gable roof with its ridge running perpendicular to the wall or a shed roof that slopes downward away from the wall. Where an attached backyard deck meets the house.

Asection would show the panel with 30 lb asphalt paper on top 2x4 spacers on edge with 3 4 plywood sheathing on top of them then a layer of versashield. I m at the stage of designing the flashing and air moisture barrier system and the connection between the north shed roof and a vertical wall is giving me concerns. Bigger step flashing is better. Each flashing job is a little bit different and depends on the type of material that the exterior of your house is made of.

I recommend 12 in wide step flashings bent for a 5 in.