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.

Flashing shed roof to existing wall.

I recommend 12 in wide step flashings bent for a 5 in. Where an attached backyard deck meets the house. 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. It should tuck under the sheathing wrap above and over the flashing below.

Proper roof wall flashing example. Bigger step flashing is better. 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. 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.

Fastening to masonry walls. Under the eaves of a roof with little overhang and no gutters. In all cases make sure to detail the flashing membrane so that it sheds water. Above a lower roof where it abuts the wall.

That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. The narrower step flashing just isn t wide enough to protect the intersection fully. Roof leg and a 7 in. Often with new construction the roof flashing is first nailed to the wall.

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. Then the house wrap and exterior wall covering are installed over this roof flashing. 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.