Roof leaking - looking for the roof leak near box vent

Customer called having a roof leak. The roof leak was in the kitchen near the back door about four feet in. Started by looking for obvious roof damage. Everything look to be okay so turned my attention to the roof box.

[trippyvortex]

You do a great job with your videos. Pretty clear and logical. 🤝

[rogergflowers]

Good man not to charge them, great explanation

[Mrcjhepburn]

Thanks for the tidbit of cutting the corners on the underside shingles. Just like when doing a closed valley. I would have forgotten about that.

[patricksepicjourney]

Im not a roofer, but after watching your videos I feel like I could be a good one...

[BRICEN]

Nice video thanks. I was just at my neighbors looking at a leak. I removed some moss and put some roof caulk around the vents temporarily until they can get it properly addressed.

[jjsroofing]

Yes you need at least 3/8” space for water to run off. I’ve seen vents that were done too tight leak .

[MaMa-qhdy]

Excellent explanation about trimming shingle on diagonal that lies on top of flange. A demo on your indoor mock-up may be helpful to some in showing how water can get under the unclipped shingles vs how easily the water flows down over the clipped shingle.

[johnnyhurst]

I call it horizontal water traverse. Nice explanation of shingle headlap also.

[fredrickvoncold]

I have seen a few videos on installing those, and I see people have different ideas on how to install those vents. Im a bit suprised to see that.

[thehamstaa]

You are a good roofer. This is hard to explain to even experience roofers. Like total dumshits that have been burying the flange thinking it's the proper way.

[rogerflanigan]

We've been using ice and water shield on all vents. Cut a 2 foot peice and then cut in half so you end up with 2- 2 x 1 1/2 foot pieces. Run the shingles up to where you start the vent then put the peice centered on the hole with the 1 1/2 going up and down and 2 foot wide. Lap it over the shingle so that it covers the top of the row below but not down far enough to cover the sealing strip area.

[ericnagy]

Ice and water over flange and over the top of shingle over each course around the vent and you don't have to cut corners. ICE AND WATER EVERYTIME ON ANY VENT. (45yrs experience)

[Josh-wwkz]

This is why I always tell guys I work with to always put one shingle underneath, cause you avoid this happening plus it just makes sense if water happens to get underneath, and goes to the side that it flows down the shingle instead of underneath. And do have a quart inch gap between vents, etc and flashings

[Beandiptheredneck]

Wow thats something I've never seen, that roof must be pretty low slope? I don't like those vents, I much prefer the plastic duraflo vents but I'm not sure if they're available there

[rickythompson]

You supposed to seal under the vent anyway that's the way I done it for 40 years Thompson roofing.

[detroithammer]

same with valley cuts, they catch and run!

[apakabar]

You don't even apply the patch
I need to know how to apply on the leaking

[chriskeith]

question when you get time: Would you put a roof on in 60 degree weather or if you had choice would you wait until warmer weather?

[Gregdyer]

Question for you, I seen a video on here that this guy would put the synthetic underlayment over the water and ice shield. Claiming that when someone tears it off it would be way easier. Is that a good move?

[gootubesucks]

whats with all the bots on your comments lol