Is this acceptable flashing on chimney?

This is the downward side of my chimney. I am used to seeing an apron on metal flashing over the shingle to shed water. Instead this is how it was installed.

Here is a close up of the shingle over the flashing.

Also when nailing down any flashing shouldn’t roof cement be applied to the nail heads?


Gross, but common in some areas
There is no need to seal the nail heads on step flashing.
I don’t like seeing them nailed that low, but it is unavoidable sometimes

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Sorry, I don’t understand “Gross”. That a negative?

I would never do it, but if they know what their doing it shouldnt be an issue.
Drive around your neighborhood take a look. If buried flashing are normal there I would leave it alone,if exposed Is the norm I would have them replace it.

I can’t find any pictures on the internet where a chimney is flashed like mine.

I’d tar them. 2nd pic shows dirt/rust around the nail. Water brings dirt with it, that nailhead will be gone in 2 years. Better check your plumbing vent flashings too.

And that last picture shows a nail maybe 1.5 or 2 inches from butt long above it. This would make me look into nailing pattern around the tricky part if your roof (ex: valleys, roof to wall intersections, step flashing, any penetrations). Typically, most roofs leak in those areas first and these areas will expose the weaknesses in any roofing crew. Randomly lift up a few shingles and check to see that they followed installation instructions.

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Yes, we cover the flashing apron depending on the situation
Its called a beauty shingle.
But in our region we fully tar it underneath.
Not just the nails, everything.

Usually i wouldnt be using this technique on a chimney.
I use it against short front walls under a gable.
Homeowners dont like to see a bunch of flashing nailed every 6 inches with tar or caulk or screws and it doesnt match the shingles or the siding. Also over time some of the fasteners will want to come loose
Flashing will be sticking up and often causes leaks.
In our region we fully tar the entire flashing and cover it and it always looks great and it always protects the fasteners. And keeps the flashing from popping up, wind getting underneath…

On side walls, or any protrusion or corner we tar under the flashing also.

Edit… you might be in a region where a lot of roofers dont order roofing tar to the job or even required to.
I say They dont like to get their fingers that dirty.
And somehow convinced they dont need it for anything, anywhere.
Bomb thrown…lol


We do our show/ beauty course the same way. Nice bed of cement then copper or stainless roofer through each laminate tab.

roof_lover I am in Northwest Ohio.

MPA, NO cement was used in the installation of this roof. Nothing in the California-Cut Valley, Nothing in or around the vents. Nothing over and nail heads through the flashing around the chimney.

I haven’t had a bucket of mastic in my truck for over 10 years and we have very few issues with leaks, (anyone who says 0 leaks on their work I call bullshit). To clarify, we don’t do torchdown or built up only metal, slate, comp and single ply. I don’t own a trowel and very rarely get leak calls on our work. 22 employees, 24 years in business, hundreds of job per year.


I cement down the final cap and the hip to ridge caps, to avoid a couple face nails. Face nails and caulk work fine to