Install Z Flashing Siding

Begin at either end of the wall and set the level middle.

Install z flashing siding.

At the top tuck metal drip cap flashing under the siding and on top of the second layer of wrap. You set flashing upon top edge of each piece of plywood over a fat bead of caulk and hold it in place with just heads of roofing nails driven into sheathing. Galvanized z flashing so called because of its z shaped profile keeps water from getting through horizontal joints between sheets of plywood siding. This is to facilitate water flow.

Install the kickout flashing underneath the first shingle photo 1. How to install z flashing on rotted t1 11 siding 1. This allows you to bend the center part of the flashing over the sides of the door to cover the. Item 3807 model 5504900120.

Window and door cap 1 25 in x 120 in x 1 56 in aluminum z flashing. Next comes another layer of building wrap installed like the first layer. Attach z flashing at the top of the opening. Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas.

Test the rotted area of the t1 11 siding by poking it with a nail or a screwdriver. Cut half inch notches into the z flashing on both ends where the flashing bends using the tin snips. Install the trim just under the drip cap. If only the surface is damaged.

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. Again slide the pieces under the siding and remove pieces of siding as necessary and reattach them after you ve nailed the flashing and molding in place. Install the first length of z flashing. Complete the installation of the first horizontal row of t1 11 siding following standard construction practices.

Add felt if needed before nailing the new wood on and prime the new wood on all four sides before installing it. Attach j molding to the sides of the opening. 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. Apply a bead of caulk to the felt and set the window in the caulk.

Although commonly called z flashing the z has squared corners and it could as easily have been named stair step flashing. The instructions also call for at least a 1 4 gap between the materials at the site of the z flash.