How To Flash A Shed Roof To A Wall

Flexible flashing tape seals the eave to the wall.

How to flash a shed roof to a wall.

Two ways to flash roof edges. Above this install a counter flashing back on your sheathing with a return wide enough to allow air movement. If installed along the foundation the membrane should cover the joint where the sill meets the foundation. The base flashing or apron flashing is the bottom piece.

I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall. Placed opposite to base flashing or above base flashing counter flashing completes the two part team. Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it. Ensure the vent is nailed at each edge 2 in.

Nail the vent to the wall with matching spacing of nails. Above a lower roof where it abuts the wall in all cases make sure to detail the flashing membrane so that it sheds water. Above this start your wall strapping and cladding. In this video isaac illustrates installation of an 18 w.

The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material. Most simply use a nominal 6 piece of lumber. Nail length should penetrate through roof decking. It should tuck under the sheathing wrap above and over the flashing below.

The rough side will be down against the roof and wall and nailed at 2 in from ends along the black nail line in the fabric and two nails evenly spaced between them. Step flashing is a rectangular piece of flashing bent 90 degrees in the center. Iws is used in conjunction with step flashing or 4x5 wall flashing to create a water tight junction. Above the roof sheathing.

Vent the shed roof by installing the end wall flashing on top of strips of your wall strapping cut the same height as the vertical leg of the flashing. One common method is to lay the edge metal under the eaves membrane and over the rake. To do the job properly the flashing should go right through the block wall and thereby keep the lower wall dry. Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5.

I cut the tape so that it laps onto the housewrap above and 3 in. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. 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.