Although commonly called z flashing the z has squared corners and it could as easily have been named stair step flashing.
Install z flashing siding.
Add felt if needed before nailing the new wood on and prime the new wood on all four sides before installing it.
Complete the installation of the first horizontal row of t1 11 siding following standard construction practices.
The instructions also call for at least a 1 4 gap between the materials at the site of the z flash.
How to install z flashing on t1 11 siding.
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.
Attach j molding to the sides of the opening.
Begin at either end of the wall and set the level middle.
Apply a bead of caulk to the felt and set the window in the caulk.
This allows you to bend the center part of the flashing over the sides of the door to cover the.
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.
Next comes another layer of building wrap installed like the first layer.
Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas.
If only the surface is damaged.
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.
When reading the installation details for hardie siding lp smart lap and tru wood sidings the z flashing is always shown with at least a 5 degree angle away from the building.
This is to facilitate water flow.
Test the rotted area of the t1 11 siding by poking it with a nail or a screwdriver.
Install the first length of z flashing.
Scrape loose paint off the rotted area with a putty knife and use 80 grit sandpaper to smooth the rough surface if.
Install the kickout flashing underneath the first shingle photo 1.
Cut half inch notches into the z flashing on both ends where the flashing bends using the tin snips.
At the top tuck metal drip cap flashing under the siding and on top of the second layer of wrap.
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.
How to install z flashing on rotted t1 11 siding 1.
Galvanized z flashing so called because of its z shaped profile keeps water from getting through horizontal joints between sheets of plywood siding.
Attach z flashing at the top of the opening.
