Flashing Against Panel Siding

Install the first length of z flashing.

Flashing against panel siding.

The solution to rotting sidewalls is a small piece of bent metal called a kickout flashing at roofing suppliers which simply directs all that water away from the wall. 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. A key part of my approach is using a special piece of flashing at this.

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. Step flashing is used where a roof meets a. In certain instances flashing may need to be installed on the exterior of siding. The seat dimension 3 8 in corresponds to the siding thickness.

J flashing on transitions. It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. How to install step flashing under siding. Keep water out of your home and running down the roof where it belongs with appropriate use of step 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. The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding. It is used to protect the horizontal joints between sheets of siding from water infiltration. However in most instances step flashing should be installed behind siding.

Oftentimes if you re installing in a re roofing situation you re going to be coming up against vinyl siding brick wood. 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. 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. The flashing can be used over window trim band boards panel intersections and other vertical surfaces.

The exterior of a house presents plenty of opportunity for leaks. 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. Galvanized steel z flashing is made from 28 gauge galvanized steel.