Step flashing is preferred over continuous flashing for roof flashing where the roof meets the wall.
How to install metal roof flashing against a wall.
It s very important to make sure that you grab the z channel that s below and make sure that you re in the outside leg of the z channel.
This can be under shingles or over metal roofing material.
Apply the first course of shingles install the first course of shingles up to the wall and position the second flashing strip over the shingle.
I m going to install one between each panel directly in the center.
Materials needed for roof flashing where roof meets wall.
While 8 inch flashing usually works well for most purposes you might want to use another size.
Step flashing step flashing redirects the water back onto the shingle.
With the end wall flashing in place i use stitch screws to attach it to the z trim and to the gable trim.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
There are various ways to do roof flashing depending on which part of the roof you are flashing.
Step 2 install base 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.
How to install roof flashing against a wall.
Step 1 choose what kind of metal flashing you need.
Step flashing is a piece of metal sheet bent square at 90 degrees.
Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.
Now install the base flashing.
Installing the z trim.
Install the step flashing before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof.
You have to first decide what size of flashing you will use.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
However the principles are the s.
Laying the kickout flashing use your roofing cement to add a layer to the wall against the roof s base.
Secure the kickout piece to the cement with nails or screws.
The covered area of the shingle in the second course should be completely covered by the step flashing.
