You have to install the roof side of the flashing either under the last layer of shingles or over the roof materials if the roof runs flat up against a brick wall.
How to flash a roof to a brick wall.
One common method is to lay the edge metal under the eaves membrane and over the rake.
How to install metal roof flashing against brick hunker.
I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall.
Usually 8 inch flashing will work but any size will work well.
Choose the appropriate flashing size.
Two ways to flash roof edges.
Flexible flashing tape seals the eave to the wall.
I cut the tape so that it laps onto the housewrap above and 3 in.
Install base flashing under shingles or over metal roofing.
Step 3 flashing angled roofs with the step method you can use the step method to flash an angled roof.
Details concrete masonry roofing wrb flashing.
You need step flashing which is metal flashing that is in an l shape.
Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.
Above the roof sheathing.
Properly installed flashing covers the seam between the wall and the roof and directs water onto the roof.
Combine step flashing on the roof with through wall flashing at the masonry by dan morrison and sal alfano september 07 2017 flashing the connection where a shingled roof and a brick wall meet is complicated.