Flashing Shed Roof To Existing Wall

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.

Flashing shed roof to existing wall.

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. Drill holes for the expanding anchors every 16 inches or as specified by local codes insert the anchors hold the ledger in place and tap it with a hammer to indent the anchor locations on its back face. In all cases make sure to detail the flashing membrane so that it sheds water. Fastening to masonry walls.

The easiest way to accomplish this is by using smartvent as an off wall shed exhaust ventilating the shed roof without removing the existing flashing and siding off of the shed wall means one less hassle and one less chance of having the expense to replace the wall siding and losing the bid. Where an attached backyard deck meets the house. Then the house wrap and exterior wall covering are installed over this roof flashing. Often with new construction the roof flashing is first nailed to the wall.

Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. I recommend 12 in wide step flashings bent for a 5 in. 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.

Bigger step flashing is better. Above a lower roof where it abuts the wall. The narrower step flashing just isn t wide enough to protect the intersection fully. Anchor a ledger to a masonry wall with expanding anchor bolts begin by marking a line across the wall for the ledger s top edge.

Proper roof wall flashing example. Roof leg and a 7 in. It should tuck under the sheathing wrap above and over the flashing below.