How To Flash A Shed Roof To A Wall

Most simply use a nominal 6 piece of lumber.

How to flash a shed roof to a wall. The roof flashing is then placed up behind this through the wall z bar flashing on the outside of the vertical blocking backing material. Above a lower roof where it abuts 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 do the job properly the flashing should go right through the block wall and thereby keep the lower wall dry.

Flexible flashing tape seals the eave to the wall. One common method is to lay the edge metal under the eaves membrane and over the rake. Above the roof sheathing. It is used for roof to wall flashing.

Details roofing wrb flashing. 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. That lip is then set into a reglet or groove in this case cut into the mortar joint of the brick wall above. I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall.

Nail length should penetrate through roof decking. If installed along the foundation the membrane should cover the joint where the sill meets the foundation. Nail the vent to the wall with matching spacing of nails. Iws is used in conjunction with step flashing or 4x5 wall flashing to create a water tight junction.

Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it. Step flashing is a rectangular piece of flashing bent 90 degrees in the center. The flashing only going part way into the wall will merely stop excess water running down the outside of the wall and between the wall and roof. Placed opposite to base flashing or above base flashing counter flashing completes the two part team.

The base flashing or apron flashing is the bottom piece. In this video isaac illustrates installation of an 18 w. Above this install a counter flashing back on your sheathing with a return wide enough to allow air movement. Because most roof flashing is required to extend up the wall a minimum of 4 and some a minimum of 5.

Ensure the vent is nailed at each edge 2 in. Above this start your wall strapping and cladding. 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. 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.