Step flashing on roof overlay

[John Gromkoski]

What do you report if there is no step flashing installed on a rake wall when it is a second layer of roof shingles?

[Roy D. Cooke, Sr]

If I can not see it I write it up as Suspect no flashing on Roof wall . Further evaluation by qualified person .

[Jeffrey R. Jonas]

Are two layers of shingles allowed in your area? It is not in many. Also as Roy stated, if I (you) can't see it, report it. Also, I would call out the shingles against the wood siding anyhow.

[Joe Funderburk, CMI]

Are you sure it isn't behind the siding? Did you raise the shingles at the gutter?

[Bob Elliott]

No kickout .

[John Gromkoski]

There is definitely no step flashing at this covering. So I'm writing it up as no step flashing. However, what if there is step flashing installed at the first layer? Would this not be good, and is this what the installer was thinking so as not to remove the siding?

Oh, and good catch Bob with the missing kick out flashing.

[John Gromkoski]

Originally Posted by jjonas

Are two layers of shingles allowed in your area? It is not in many. Also as Roy stated, if I (you) can't see it, report it. Also, I would call out the shingles against the wood siding anyhow.

Two layers are allowed here. Up to about a year ago, you could have installed 3 layers, believe it or not.

[James E. Braun, CMI]

In my area, if there is flashing at the first layer, none is installed at the second layer.

[Jeffrey R. Jonas]

Originally Posted by jgromkoski

Two layers are allowed here. Up to about a year ago, you could have installed 3 layers, believe it or not.

I believe it. It was allowed here for a long time also.

[Joe Funderburk, CMI]

Originally Posted by jbraun

In my area, if there is flashing at the first layer, none is installed at the second layer.

I can't see why it would be necessary.

[Jeffrey R. Jonas]

Originally Posted by jbraun

In my area, if there is flashing at the first layer, none is installed at the second layer.

Do they trim the shingles back away from the siding?

[Christopher Currins]

Originally Posted by jgromkoski

However, what if there is step flashing installed at the first layer? Would this not be good, and is this what the installer was thinking so as not to remove the siding?

Yes. By condition of shakes, and if no visible damage inside, I'll bet there is flashing installed with 1st layer. So there is no need to remove it and replace when 2nd layer was installed.

You should be able to see metal flashing at siding/shingle joint.

[Linas Dapkus]

If the siding is in contact with the shingles, it will also wick moisture causing damage, rot. I recommend siding be cut back so as to provide a gap. Like here

[Roy D. Cooke, Sr]

Originally Posted by ldapkus1

If the siding is in contact with the shingles, it will also wick moisture causing damage, rot. I recommend siding be cut back so as to provide a gap. Like here

Very nice thanks Linas

[David C. Macy]

I believe I obtained this verbiage from Marcel.

The roof to wall step flashing cannot be verified for proper installation nor its existence due to the wall siding having been installed tight on to the shingle surface.
It is a standard of practice to leave the siding up from the shingle surface 2” to a min. of 1”. This is needed to prevent water on the roof from being wicked up into the siding material.

If vinyl sided add ...Since wicking is not a problem with vinyl siding, the gap should still exist to allow future removal or replacement of the shingle roof surface. It also allows to see the step flashing and monitor any damage to it, should any leakage occur in that roof to wall juncture.