Shingles causing flat roof to leak - How to find and fix the leak

When a Flat roof is starting to leak that has a shingle roof connected to it, it is most likely that the leak comes from the shingles.
See how to find leaks on a shingle roof and how to make the necessary repairs.
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0:00 Explaining why singles cause leaks on a flat roof
0:15 Explaining where water enters in
1:26 Fixing the leak on Shingle Seams

[RC-Heli]

I discovered a leaking roof yesterday on the same kind of shingles. Thanks for this video!

[gregsbrown]

That shingle looks pretty rough at the bend. I saw a couple of shiners that look they need to be sealed too. I would tell them poor installation is what caused this roof leak.

[normanbfifteen]

Essentially, you are saying that singles are flawed because of the tar strip on every shingle. Its more likely that the nail was too close to the join. I think they should be at least 3 inches from the join.

[tjburr]

If that (the seam)is what causes the leak then wouldn't and shouldn't we expect the entire roof to be leak.

[larrysbrain]

Regular asphalt roof cement caulk works great for that.
They shouldn't have used shingles below a 4/12 pitch.

[tremsmom]

Where do you buy the brand Turbo Poly Seal you use and what is the brand? I am not finding it on the internet. Seeing Flex Seal, and Henry. Thanks.

[mattiron]

Whats the name of the seal, did you say double polyseal.

[davidowen]

I say anything do with paint is a temporary fix new roof needed

[LuisluigiTexas]

I’m a shingle roof repair expert in my area. And I respectfully disagree with you about what is causing the leak there. What you fixed will do nothing

[jonjohnson]

😅😂 Typical DIY “roofer”…… He should be a spokesperson for Turbo Ploy Seal. I have NOT seen a video of his where he doesn’t use it. I wonder if him and his wife take a bath with it, too?
Anyone reading this, just hire a professional roofer to actually repair the problem and not place a Band-Aid on it.