Z Flashing Wood Siding

Some failings are chronic.

Z flashing wood siding.

Often when a drip cap profile is used it is assumed to be enough by itself perhaps just with a coat of paint. Continue installing the z flashing at the top edge of the siding panels across the full length of wall. It is used where siding meets horizontally. Item 3807 model 5504900120.

It is used to protect the horizontal joints between sheets of siding from water infiltration. The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding. The z flashing is used as a horizontal joint between 5 8 inch siding to keep moisture out. I have investigated structural failures and repaired homes for many years.

The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding. Galvanized steel z flashing is made from 28 gauge galvanized steel. Window and door cap 1 25 in x 120 in x 1 56 in aluminum z flashing. The seat dimension 3 8 in corresponds to the siding thickness.

Slide the widest edge of a z flashing strip behind the upper siding panel. Although commonly called z flashing the z has squared corners and it could as easily have been named stair step flashing. Because the end grain wood at the top and bottom of plywood sheets easily absorbs and holds water it is especially important to protect it and avoid wood rot developing around the joints. This is especially important on transition boards such as the joint between gable siding and the wall below below.

It is used to protect the horizontal joints between sheets of siding from water infiltration. To read pdf files you need the adobe acrobat reader 6 0 or higher. The details provided will improve your chances of preventing leakage even in high exposure conditions. Install the kickout flashing underneath the first shingle photo 1.

Galvanized steel z flashing is made from 28 gauge galvanized steel. If the shingle already has flashing on it the kickout flashing has to slip beneath it and you ll have to loosen or remove siding to do this. Click here to download it for free from adobe s site. The seat dimension 3 4 in corresponds to the siding thickness.

Position the flashing lengths as defined in step 2 overlapping the ends a minimum of 2 inches onto the previous flashing piece and securing the flashing with 8d nails at each wall stud. We see it most often used at the horizontal joint between two sheets of plywood exterior siding to provide protection from water seeping in at the opening. Any horizontal run of trim such as head casing and skirt boards should be protected by a drip cap and z flashing.