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Roofing sidewall step flashing pictures.
We discuss the importance of keeping wood siding clear of the roof surface the need for flashing at the dormer side to roof intersection and the need for counter flashing at step flashing.
L flashing can be cut into smaller lengths to use as step flashing.
Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.
It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.
Each piece of step flashing laps over the shingle below and under the shingle above.
Installing side wall step flashing.
Bent into an l shape.
The flashing material should be 4 inches by 7 inches in length when it lies on the roof deck.
With step flashing you do a little flashing then a lot of roofing then a little more flashing and so on.
Galvanized sheet metal bent at a 90 degree angle i e.
Our step flashing snafu photos below demonstrate a few typical step flashing snarl ups.
L shaped flashing is a versatile general use flashing used where a uniform or strengthened finish is needed on a 90 surface.
Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney.
Purchase pre cut step flashing of cut your own step flashing pieces to be 10 in.
Once even a small section of roofing cement fails you ll have a leak.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
The term reglet flashing refers to an installation method for counter flashing not a separate layer.
This flashing is typically field fabricated from a sheet of 26 ga.
The first two layers are called base flashing and step flashing.
Made with 28 gauge galvanized steel l flashing can play an essential part in protecting your home against water damage.
Longer than the shingle s exposure.
This article describes mistakes at roof dormer sidewall flashing and roof dormer sidewall coverings that invite leaks rot and insect damage on buildings.
Up the wall and 5 in.
Posted march 4 2017 filed under roof installation roof repair maintenance.
Apply drip edge and roof underlayment over the roof deck and continue lapping up the sidewall and over the water resistive barrier in this case rigid foam insulation a minimum of 7 inches figure 2.
Over the roof deck.
Length to extend 5 in.
How to install sidewall flashing and kick out diverters on homes with rigid foam insulation sheathing.
Then sink one nail into the sidewall to hold the step flashing in place.
Next install the step flashing with the next course of shingles over top of it.
The 7 inch length ensures a 2 inch headlap on.
This process will continue up the entire roof.
Below are two photographs of roof wall step flashing completed and effective of a slate roof against a brick wall below left and in process with step flashing against a dormer sidewall before the dormer siding has been put in place below right.
But it doesn t work that way.
Step flashing needs to turn up a minimum of three inches up the sidewall.
