Use the grinder to cut a 1 inch deep slot into the mortar joint to install the flashing.
How to counter flash a roof.
With either installation practice it prevents water from penetrating the flashing and seeping in behind your step flashing.
Bend the flap down and nail along the top edge.
However it s important to check for damage anyway.
Step 1 cut the mortar joint to effectively install the counter flashing you ll have to remove the mortar joint along the step flashing and create what is called a reglet.
But it doesn t work that way.
Either cut into the brick or nailed against it and sealed along the top and top front half.
Counter flashing is necessary to prevent water that runs down the outside face of flashing from going behind the base flashing.
You may want to paint the flashing to match the roof.
Once even a small section of roofing cement fails you ll have a leak.
Brick or counter flashing installed multiple ways.
There are two good ways to handle corner flashing.
Beyond the dormer and cut the top section along the dormer edge.
Coat the flashing with a zinc based primer followed by two or more coats of spray on rust preventive metal paint.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
First use a stiff wire brush and solvent to clean the surface of any dirt debris or corrosion keep solvent away from asphalt shingles.
Use your caulking gun to caulk a straight line above the back of the base flashing.
The first bending two pieces and caulking the joint photos 1 3 is the most common because you can do it on the spot with the flashing at hand.
Cut a slot of about 1 5 inches into the brick with a circular saw and masonry blade.
When working with step flashing this may involve removing undamaged pieces of flashing as well.
Run the base flashing 4 to 5 in.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
