Fastening plumbing vent flashings

It is the way I was taught to install waste plumbing stacks.
I can not get use to seeing the new and improved? methods.:roll:

Actually Keven they are all wrong.
Sorry.
No exposed nail-head.
There is no need for fasteners to be exposed on a shingle roof.
NONE.

I am going to recant my #18 post.
Dam I have to take my time and look and listen. Sorry all.

The exposure is to great. The placement of the plumbing flange vent flashing within the shingles field are leaving a deficiency in protecting the attic.
It is deficient. I would call it out and hard.
That is a leak waiting to happen.:o

This one is soft rubber.
I do not agree with four nails on the bottom exposed.
All the shingles were sealed around the boot and down the boot.
I always tell my clients to check the attachments every year if possible.
The hard plastic design is a different story.
The aluminum should be different also.:smiley:

Roofing nails will lift. The expansion and contraction of the deck itself will open and close the entryway made by the roofing nail of fastener.
The temperature or atmospheric conditions ( RH ) makes material expand and contract. Plastic, galvanized, neopene all have a different rate of expansion contraction during times of temperature.exposed Fasteners are still in direct violation roofing code.
No time to look.

Might be my eyes but the flange looks more than half exposed.

That is the best you will find here. I dont like it but that is what it is.
The good example comes from a home 4 years old. What are you going to do.:roll:

Marcel,

I have that book also. It is a super reference. Usually can get one free in Vero Beach, FL by inquiring to a local CT distributor.