Flashing Shed Roof To Existing Wall

Fastening to masonry walls.

Flashing shed roof to existing wall.

It should tuck under the sheathing wrap above and over the flashing below. Often with new construction the roof flashing is first nailed to the wall. Above a lower roof where it abuts the wall. The narrower step flashing just isn t wide enough to protect the intersection fully.

Under the eaves of a roof with little overhang and no gutters. Bigger step flashing is better. 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. I recommend 12 in wide step flashings bent for a 5 in.

Roof leg and a 7 in. 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. 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. In all cases make sure to detail the flashing membrane so that it sheds water.

Proper roof wall flashing example. 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. 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. Finally the housewrap can be laid up on the wall to cover the top of the kickout diverter and step flashings.

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. Where an attached backyard deck meets the house. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above.