Water Tight Installation of a Roof B-Vent Flashing & Cap 

I've roofed for 38 yrs, I've never seen anyone double up the Bvent flashing other than on a tile roof ( I live in Colorado ) Having said that, I have absolutely nothing negative to say about this presentation. I enjoyed seeing this. Thanks, live long, work well!☮️☑️

I wish you guys were in Houston. I would have given you my Roof job. I still have the one leak around the Water Heat Vent, and this is the way the roofer should have fixed it. Now I know what to look for when they come back to do the warranty work. Thank you.

Very helpful, I appreciate you sharing this video. Thank you so much

Very good , plain and clear demo. Congrats and Thanks. This should be helpful for everyone.

Thank you, finally after Searching from hours I found this video

Best instruction video I've found thanks!

outstanding video for a very proper installation. Thank you. you guys do terrific work.

Exactly the video I’ve been searching for! Thank you very much for sharing.

That was great information. I don't like using caulk on any vent pipe transferring heat because of the expansion/ contraction cycle. Thanks again...

just had my roof done a year ago water boiler vent is dripping now....

Do you still screw the cap on? Isn't the screw going to distort the outer flashing in the process?

How close to the gable end of a house can a b vent be installed?

So how is the storm collar attached? Do you nail it? Is it supposed to move? Our cap blew off during hurricane in FL just need to replace it. I noticed that our collar is moving up and down and has a lot of caulking around it.

awesome job the third layer of flashing was that made for you or did ecco supply it?

I have solid 1X6 sheathing and the roofers put underlayment then shingles over. From the attic I can see nails come through the underlayment in between the sheathing. Seems not secure to me. Won't that leak ?

Haha very professional all the way up and till the end lol

evidently this system has been working for you. It looks like excessive overkill till you get a leak I guess.

My Amerivent Type B furnace vent pipe leaks from the INSIDE, dripping from a seam in the sheet-metal elbow below the roof vent. The outside of the pipe in the attic is dry. The water is definitely coming from INSIDE the vent pipe, at one of the seams in the sheet-metal elbow, as though the cap itself (outdoors, above) is leaking. The rain water then drips out of a ceiling-mount light fixture inside the house, which is how I noticed the leak. I finally hung a bucket just below the leaking elbow in the attic as a band-aid temporary fix. I'd like to know if I need to replace the outdoor vent cap itself or what? This is a fairly new house, and has always had this problem. No the flashing is not leaking at all - the water is coming from inside the pipe. My worry now is corrosion of the vent pipe and maybe the furnace itself, considering that much more water may be flowing past the elbow where we see it dripping from, right into the furnace. Any suggestions?

Where to buy ?

I've never seen it done like that with 2 roof jacks. Makes sense though.

Thank you! So in your example: do you have 4" B-vent with two 4" flashing and a 4" storm collar. Then a 5" single wall counterflash pipe over it all leading to a 4" cap? I don't understand if you are connecting a 4" cap (by 90 deg twist) to the 4" B-vent or is that a 5" single wall cap connected to the 5" counter flash single wall pipe?

Could you provide links to the materials you used in this video?

Some say overkill. But if it works. Call it what you want. I never understood the caulking around the weather cap for the flashing. It'll wear off eventually. Caulking doesn't look professionally on the outside. I live in the Midwest, so we go from hot, cold, to artic. So that caulking I'm sure would age and wear off

It's duel wall pipe, it don't get very hot...

Curious as to why you didnt extend the water shield down further so that it was over the top edge of a shingle so that if water did get to it, it would shed over a shingle and not under it. Am I overthinking this?

The double boot seems unnecessary

thx

Over kill