It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc.
Flasing against panel siding.
One of the most vulnerable areas for siding is transitions.
Many homes have a transition point somewhere up the wall where brick gives way to some type of siding whether it s aluminum panels or cedar shingles.
Lift the bottom shingle and slip in the kickout flashing.
J flashing on transitions.
A key part of my approach is using a special piece of flashing at this.
Installing the z trim.
Use a felt paper spline wrapped around the corner and extending 6 inches beyond the corner board to protect the joints where the siding meets the corner boards see figure 1 5 at left.
Flush the end of the flashing length with the wall corner and secure the flashing to the framing with an 8d nail at each wall stud.
Building siding flashing finish details for building corners use overlapping 1x4s or 1x6s at outside corners or use 5 4 stock for a heavier look.
Unless you re careful step flashing can allow water from the roof to slip behind the gutter and get behind the siding and even the housewrap.
In certain instances flashing may need to be installed on the exterior of siding.
Install the first length of z flashing.
The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding.
The seat dimension 3 8 in corresponds to the siding thickness.
How to use flashing between brick siding.
After building in the proper flashing the homeowner will have a highly weather resistant engineered and treated wood siding backed by a five year 100 percent labor and replacement feature and a 50 year prorated limited warranty on the substrate.
Begin at either end of the wall and set the level middle section of the z flashing onto the top edge of the siding panel with the wider flange upward and against the wall framing.
Galvanized steel z flashing is made from 28 gauge galvanized steel.
If the kick out and step flashing can t tuck behind the siding screw on cap flashing to cover it then caulk along the top.
Slip in the flashing.
In those instances the best thing to do is remove the siding and run the flashing up against the wall and replace the siding so that you have a watertight finish.
Oftentimes if you re installing in a re roofing situation you re going to be coming up against vinyl siding brick wood.
The exterior of a house presents plenty of opportunity for leaks.
Cover with cap flashing.
The flashing can be used over window trim band boards panel intersections and other vertical surfaces.
A common problem area is the point where a gutter dies into an adjoining wall as the photo below illustrates.
The warranty is transferrable to the next homeowner.
