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What is the best product you have used to fix a roof leak?

Posted on 7/11/23 at 9:08 am
Posted by LSU Grad Alabama Fan
369 Cardboard Box Lane
Member since Nov 2019
13008 posts
Posted on 7/11/23 at 9:08 am
I have a gable style roof. I had previously fixed the leak about 3-4 months ago by spraying Flex Seal over the area where the I believed the leak was occurring. I didn't notice any missing or loose shingles from my previous inspection. I believe the Flex Seal stopped working after the temperature got hot and the thin layer of Flex Seal probably expanded enough to crack.

What type of product would someone recommend trying next? I'm currently leaning towards buying a thicker liquid rubber product and rolling it on.
Posted by ItzMe1972
Member since Dec 2013
11457 posts
Posted on 7/11/23 at 9:11 am to
You can buy a bucket of roofing pitch to brush on.

But it sounds like you need a roofer to fix it properly.
Posted by LSU Grad Alabama Fan
369 Cardboard Box Lane
Member since Nov 2019
13008 posts
Posted on 7/11/23 at 9:18 am to
quote:


But it sounds like you need a roofer to fix it properly.


That's not what it sounds like to me my good man.
Posted by Huey Lewis
BR
Member since Oct 2013
4920 posts
Posted on 7/11/23 at 9:56 am to
Wherever the leak is in the attic, water should be getting under the shingles at that spot or above it.

If you aren't missing shingles, you probably have shingles in that area that are being pulled back by wind. Wind lifts the shingles and blows water underneath them which saturates through in a heavy enough storm. You can try glueing down the offending shingles but IMO this is a likely indication that your shingles are reaching the end of their life.
Posted by FLTech
the A
Member since Sep 2017
21369 posts
Posted on 7/11/23 at 9:56 am to
FlexSeal - that shite can hold a canoe together in a pond!
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
69155 posts
Posted on 7/11/23 at 10:33 am to
Roof pitch is the general purpose correct answer.
Posted by Harlan County USA
Member since Sep 2021
680 posts
Posted on 7/11/23 at 11:46 am to
Need more info.

Is the leak around a penetration? along the ridge? in a valley? in the middle of the roof? along the exterior wall? is it a shingle nail pop or a deck nail pop? Did your roof catch a bullet? Pictures are helpful.

Flex Seal is garbage.

Roofing cement & jute will fix a lot of roofing issues but not all. If the leak is a nail pop, technique is more important than product. You can use caulk to match the color of the shingles too.

Need to know the source of the leak in order to tell you how to fix it.

Posted by LSU82BILL
Fort Lauderdale, FL
Member since Sep 2006
10613 posts
Posted on 7/11/23 at 1:23 pm to
Roofs don't necessarily leak where shingles are loose or missing. Shingles just serve to protect the waterproofing membrane - usually felt paper for shingle roofs. It's hard to fix a roof leak without removing shingles to locate the breach in the membrane. Best way to determine where the leak is is to identify from below where it is seeping in between the seams in the decking and work your way up the slope.
This post was edited on 7/11/23 at 1:46 pm
Posted by Yewkindewit
Near Birmingham, Alabama
Member since Apr 2012
21082 posts
Posted on 7/11/23 at 3:11 pm to
quote:

breach in the membrane


Made me think of “insane in the membrane”……
Posted by LSUDad
Still on the move
Member since May 2004
60693 posts
Posted on 7/11/23 at 3:44 pm to
You in BTR, they make an Asphalt base with fiberglass within, you can put this on a roof during a rainstorm. Wet or dry. I just used a gallon to repair a friends house. If you post pictures, I can give you an opinion on solving your problem.
Posted by MoarKilometers
Member since Apr 2015
19857 posts
Posted on 7/11/23 at 3:51 pm to
quote:

What is the best product you have used to fix a roof leak?

New roof
Posted by LSUDad
Still on the move
Member since May 2004
60693 posts
Posted on 7/11/23 at 4:00 pm to
A few years back a friend called about water spots on his ceiling. It was a parapet wall. So I got a bucket of the roofing asphalt, cleaned and resurfaced the wall, never had a leak again. A couple years ago he got his roof replaced, told the roofer to check the wall, the roofer said whoever did the work, did a first class job.
Posted by keakar
Member since Jan 2017
30152 posts
Posted on 7/11/23 at 7:31 pm to
quote:

You can buy a bucket of roofing pitch to brush on.


this ^^^^^^^

or replace the shingles in that spot or just do the whole roof. if one spot leaks, then its time, before you find a few more leaks
Posted by Cracker
in a box
Member since Nov 2009
18902 posts
Posted on 7/11/23 at 8:53 pm to
Look in the attic see where it’s leaking and Dona proper repair
Posted by couv1217
Baton Rouge, LA
Member since Sep 2007
3458 posts
Posted on 7/11/23 at 10:56 pm to
quote:

LSU Grad Alabama Fan


If you’re in Baton Rouge I’ll come help you out. Full disclosure I am a roofer but if it’s an easy fix, I’ll just help you out, tell you how to fix, then be on my way. If it’s more complex than that, we can talk about different options but more than likely it’s something simple
Posted by Havoc
Member since Nov 2015
34218 posts
Posted on 7/13/23 at 1:54 am to
quote:

an Asphalt base with fiberglass within, you can put this on a roof during a rainstorm. Wet or dry. I just used a gallon to repair a friends house.

Where can this be found?
Posted by Turnblad85
Member since Sep 2022
3179 posts
Posted on 7/13/23 at 3:56 am to
Sounds like you need a roofer-in-a-can.



NP1 has been amazing from the bit I've used it. But its more for caulking around metal roofing details. Probably work on asphalt too. All the asphalt based tar stuff i've used has gotten brittle and cracked after a while. But that short while may be all you need to get you by.
Posted by MoarKilometers
Member since Apr 2015
19857 posts
Posted on 7/13/23 at 6:26 am to
quote:

All the asphalt based tar stuff i've used has gotten brittle and cracked after a while. But that short while may be all you need to get you by.

It isn't designed to be exposed, nor on top of shingles. Smearing mud on top of shingles is equivalent with a trash bag being a fix for a broken car window. Is it ugly af, yup. Will it work longer than a week or 2... maybe it amazes me how poorly some folks treat their most valuable investment. Shitty "fixes" will absolutely cost you more in the long run.
Posted by poochie
Houma, la
Member since Apr 2007
6764 posts
Posted on 7/13/23 at 8:47 am to
quote:

What type of product would someone recommend trying next? I'm currently leaning towards buying a thicker liquid rubber product and rolling it on.


quote:

But it sounds like you need a roofer to fix it properly.


quote:

That's not what it sounds like to me my good man.


This is when I stopped reading. This guy is telling you what you need to do to properly fix it and you shite on him. Roofs don’t leak where it looks like from the outside. But yea, keep slapping more goop on the outside and hoping it works, only to fail again and again when you pile it on while the rot and damage continues. It’s clear you need a roofer because you don’t know how or want to learn how to fix it properly.
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