On a boiler vent? Is this allowed?
There is a special high temp product for that application.
What is the vent material?
It is a thin wall PVC product, the whole unit was not working, recommending Boiler dude.
Looks like the high temp stuff:
http://media.rd.com/dynamic/96/54/39/200701_AtticLeaks_008.jpg
The reason I ask is that if it was ultravent or plexivent there has been a recall on it.
The replacement program is over at the end of this month if I remember correctly.
Found it
Wonderful, Thank you Larry and Michael. I will inform the client.