Had a roof problem and water was getting in. Went up on the roof and we had the older 2 tab shingles. Took the spray and coated the areas between the tabs and solved the leak and it only took 4 cans of spray. 4 cans of spray instead of a new roof and it lasted for 4 years until we did actually put a new roof on the house. Great stuff...
I also used Flex Seal on my roof around the chimney area. It worked REALLY well for two years. Hot summer sun along with usual weather elements will break down if used outside and especially on an exposed roof area. I was happy until I wasn't.
Flex Seal is not what most people think, just like i thought. It is a temp fix only. There is another video showing a guy who sprayed his vent rubber roof boots just like you did and 6 months later the Flex Seal was brittle and crumbling. Definitely do not use flex seal on roofs but thank you sir for your trying to help people. Thank you. I was going to use it on my mortar chimney cap to seal it. I am so glad I did not do it. CrownCoat is the only thing I will use for now on.
I have 20 years of Roofing experience. Witnessed Flex Seal And similar products used by those DIY homeowner know it all types eat apart the shingles in every area it touched them around pipes and chimneys.
Yeah,I saw the same thing.A lady I know had me check her skylights that were leaking and she already had somebody use flex seal the year before.The Flex Seal was brittle and cracking.
For something simple like that I would use Karnak in the caulk bottle version this way u can control where u put the stuff and how much thickness u want to add. Thanks for the time in making the video though.
I can’t speak for flex seal but I live in central FL and I’ve used the gorilla glue brand rubberized spray for things like gutter leaks and small roof repairs. I’ve never had to go back because of a failure. I check on the repairs at the end of every year and no problems yet after 6 years
Black knight (and other brands) has a paint on tar which is extremely better than flex seal. It is also around the same price. Flew seal doesn't hold up to the weather.
Ive used flex seal to fix my rad in my old car...it worked 😂 held up for 2 years until someone smashed my car by running a red light and the rad still didnt leak!
I highly doubt flex seal worked on your radiator of all things when the stuff can’t even hold water in a bucket. As hot as a radiator can get.......for 2 years.......flex seal.......I doubt it.
New boot would cost less or about equal to a can of flex seal. . . and it would look much better IMHO. I'm a firm believer, I can watch a video like this and learn what to do, or what not to do. Thanks for posting.
Dean, first off I just want to say thank you for posting a comment that disagrees with what I'm saying but doing it respectfully. This seems to be a lost art on RU-vid. I happen to agree with you, the replacement boot is the better way to go. For this video I was reviewing a product that was sent to me for testing and I chose this as my test. I have a follow up video on this if you are interested, shows results at around the six month point. Thanks again for the post - BB
lol I saw that commercial for the first time the other day, when he goes zooming around the lake I started laughing, wonder if they had a rescue boat on standby...
Don't use flex seal on your roof! The flex seal reacts with your Asphalt shingles and eats them up. I've seen a few of these repairs that ended up causing more problems. If you're not ready to change the pipe collar for whatever reason just use caulk.
I have an old really worn wood pergola. Especially the top slats. Since my only next step would be to demolish it I'm going to try flex seal paste on the top of the 2x4 slats. What do you think?? The rest of the wood isn't that bad so I'm just patching with wood filler and painting it.
I had a boot with a crack but the post with the boot on it had a hydro line connected to it so I could not use the Perma Boot without calling in the hydro company. I used a product called Stretch N Seal - its a silicone tape. It seems to have done the job - I will check in the fall to see how it holds up.
I live in North Carolina and it's a tropical depression coming through thanks flex seal....for nothing. WTF! Bro I don't need anyone to show me how to use a spray can,thanks again for helping me prevent water damage. 🖕
Buy the real roof repair stuff like Black Jack or Henry's Roof Cement that's all they do is R&D on there products to use on roofs only. Not to put a screed door on a aluminum boat and whoo-hoo around in a commercial.
Can you drill holes in your roof and then use that spray to seal them up........like in the commercial....sealing the entire boat and then take it for a ride?
Do it right... Replace the boot for about $6.00 at Lowes. I just replaced two at my house. Very fast and easy, five minutes. Anything you spray out of a can won't last more that one year. Too thin. UV will kill it fast.
I hate to hurt this guy's feelings, but that flex seal probabbly isn't good for anything but maybe better than used chewing gum, it belongs on late night t.v. infomercials hosted by Bill Mays (R.I.P). If you want it done right the first time/last time use Henry's "extreme" rubberized wet patch (the most expensive version of the Henry's wet patch) Home Depot on the shelf stuff. Comes in calk tube for small jobs like this. The "extreme" rubberized version has UV blocking additives to prevent harsh sunlight u.v. rays from shrinking and cracking (lifetime warranty if you use the backing mesh sold separately). Last weekend I used the gallon size to re-tar the flashing around my chimmney..it's quality stuff, user freiendly, doesn't dry too fast and does stay flexible but has a dry feel after curing. Do read all instructions and on the can. Wear proper gloves. I used charcoal lighter fluid to clean off tools plus a few areas that got on my skin. The Henry's is not too thick to use a brush to spread and smooth it. As a side note, I noticed H.D. sold replacement boots, so you might also want to consider replacing the boot, than tar it. If you use the backing mesh you might want to follow up with a second coat the next day. This may sound too intensely laborous and expensive, but over time it is cheaper and of course much less labor (d.i.r.t.f.t)
Henry's is good stuff I used it all the time and it never let me down, the cold ap was my go to. This was a can that was sent to me for testing. This vid was the test I also have a follow up at 6 months uploaded that shows how it held up
We had an EDM Commercial roof at my job that was notorious for leaking. I had gone up on the roof to do some HVAC work, and noticed several bad leak potentials, especially in the Mansard Vertical Areas. Got a couple cans of the stuff, and went over everything that looked bad. Had a Flash Flood Storm that night, no leaks whatsoever. Also it held up, through the seasons. Boss told us to stop using it, we went around him, especially when he went on leave. The stuff was absolutely amazing.
Nice roof, looks new. If that thing seals a screen door and they can float across a pond, it looks like good stuff. Just wonder what the heat tolerance is. Good video!
+Craig Arndt I'm doing a follow up on it when spring gets here and another at the end of the season as winter is rolling in. Should give a good indication of how well it holds up. I've used other similar products before but not this one. so far so good
interesting, I did not know that. I'm in Ohio so my reviews are based off of my weather, right now we are in the 90's but I know you guys can get some serious heat down there, especially in the sun. appreciate the post
It works just fine in flordia, i have personally done hundreds of risers with flex seal, and have been doing it for years and i have never had a customer complain about any leaks.... This stuff is amazing and cheap
we installed a covering over the back porch, with metal sheets, and there are places where it leaks, likely due to position of the screws, obviously we need to make a patch for that but will this stuff seal the holes? the metal is that roofing tin that comes in 38 inch wide sheets with ridges
I own a Roof Repair company and ive seen this used by a home owner on a pipe flashing boot, but this stuff even if applied correctly does not last for very long, I would consider this a temp roof patch, nothing permanent, this can be fixed permanently by replacing the pipe flashing that's all the metal and boot around the pipe
Chad, You are 100% correct here. This is a temporary fix and will not hold up in the long haul. I have another video up of this same repair after six months and the results are not pretty. I'll post the link below if you're interested.
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MvldjXH6cPo.html This repair had several coats put on one day and then about two weeks later another coat. This is what it looked like after six months
The product cracks, and that proves it's not UV stable, I hope that wasnt a customers roof you used that on, there is a pipe flashing called Ultimate Pipe Flashing by Lifetime that is a Silicone pipe flashing with metal flashing ice used that is the only product that will hold up for the life of the roof
Ok good to know. That was my roof in the video btw. I usually just pull the boot and put a new one on unless the roof material around it is in bad shape, brittle or it's really cold out and then it's time to do the quick fix to get them through till spring or their new roof whichever comes first. lol I had high hopes for this as they advertise it fixing gutters and outside items but after seeing how it performed I will not recommend this for anything but a temporary solution.
That stuff is not for a roof. Its not meant to be in sun all day,every day. Especially on a roof that's well over a hundred degrees in the summer heat. Roof is not new. And they used metal Nails on aluminum that causes electrolysis, basically melts/ roots the aluminum over time.
True Talk I have a chimney leak & I sprayed flex steel all over the over it as a temporary fix until the weather improved. It appears to have stopped the leak but I'm concerned how long it will hold.
As a roofer. I Hate hearing that someone put flexseal down to patch a leak or flash a pipe. It doesn't last. And when you do go to fix it correctly the next time it can actually keep your repair from adhering. Causing the leak to continue.
I sprayed this stuff on my entire roof now it leaks even worse and all my neighbors are laughing at me. And then a giant Crow landed on the roof it kind of freaked me out so I sprayed it with the flex seal big mistake that thing got pissed started attacking me and packing out my eyes and then I fell off the roof I broke my collarbone I would not advise using this s*** for the love of God call the roofer
Who's the genius that installed your boots? They're both installed wrong. There are exposed nail heads and they're not even sealed. Nails need to be under the shingles.
I don't know who did the roof, I was up there to test a product not inspect the roof. I agree with you that nails should always be covered but there are some exceptions, like when you finish up the caps, usually there are exposed nails and my solution has been to cover then with some good caulk or a dab of cold ap roof patch. Appreciate the post
If you think water is still not going to slide into that shingle and hit the nail your fucking idiot you're supposed to nail 3 on the top and one down at the bottom in the middle and you put caulk over it only reason why I consider this one installed incorrectly is because the metal flashing other pipe collar is going past a whole shingle itself that shingle supposed to be over the pipe collar with just a little bit of the pipe collar showing from being on top of the previous shingle I've gone behind roofers like you thousands of times who like to nail on the sides yeah those pipe collars leak within than 5 to 6 years
Lol pipe collars were installed correctly.. you DO NOT PUT NAILS IN THE TOP OF A PIPE COLLAR... you run your Shingle.. usually it's about 3 full shingle then you start to run over top and you nail your shingle and pipe collar at the edge of the pipe collar.. and three at bottom with cualk.. pause it when he shows the second pipe collar.. yea they could've cut the second shingle back some to match the shingle below..
I did this exact same thing, 2 months later the roof started leaking again. So this time I used the equivalent of 2 full cans of flex seal, we had severe thunderstorms 2 weeks later and now it leaks worse then it originally did so now I m out the money for the flex seal and the costs to install new boots.... Flex seal is good for somethings but not roofs!!
Charles I had the same experience. I did this video as a review of flex seal, they sent me some product to test and I went with it. I was suprised at the result. I did a video on what it looked like at six months. here is the link ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-MvldjXH6cPo.html
You used Flex Seal in a spray can like in this video? I bought a can, but it puts out too thin of a stream for me to take it seriously. I’m going to try the much thicker Flex Paste (comes in a tub) on my roof.
Great job, I need to repair some leaks I appreciate your video, and no you cannot please everyone there is always at least one Jackass out there!!! Always will be! Thanks, Billy
Dont use this stuff. Use an exterior sealant made for siding or even tar they make special boots for those. Go to any roof store, they come in 2 pieces
What a waste of time. Do you know that the neoprene boots can be bought at your local roofing supply . Caulk the top of the old one and then pull the new boot over the stack pipe. $3.00 versus 7.00. 5 minutes compared to 15 minutes . The boot tops never last more than 12 to 15 years. If the original install had been caulked on top with a urethane caulk then the sunshine UVRAYS would not dry the top out and crack. Larry Crookshanks 45 years on the roofs.
Flex Seal is horrible. It cakes. It dries out. It flakes off. It leaves voids...like dried bubbles. I would sue them, but it would mean sinking even more money into dealing with such a bad product. It splits, dries, cakes, and does not work. It does all of the bad shit it was not supposed to do.
yep missys hubby is spot on I tried the exact same repair in this video with flex seal and 3 months later all the flex seal I had put on was cracked everywhere
you need to put a tiny piece of paper over the little holes so the Flex don't drip down it don't dry instant. If not applied with some common since it will not be full proof. It may look like it covered at first and you may say great it worked then never coming back to check your work then come back later and claim Flex is no good. Sometime a smart person will come back to check on his work especially when working on roof. Like the say when your cutting wood measure twice and cut once....
I must be a smart person then because I went up there two weeks after I shot this and put another coat on it and then I had to do a video six months later showing how it didn't hold up at all!!!!! I do not recommend this product for roof repair. If you choose to go against my recommendation I suggest you buy some buckets :-)
Fred here is my review after 6 months ru-vid.com?o=U&video_id=MvldjXH6cPo I'd recommend either replacing the vent flashing/boot or getting a replacement boot and sliding it on top of the old one and filling in the void / securing the new boot with silicone I was not happy with how the flex seal held up I don't believe its meant for exterior or roof applications
Don't make the effort of going on a roof just to put this crap on. Put a glob of silicone in the void. It will last MUCH longer! And don't listen to those people who saay it won't work on asphalt. Get the best stuff with superior or 7x/ lifetime adhesion. It works!
I agree, there are a lot of ways you can do a repair. This one I am not so happy with. I did a follow up review of how it held up after six months if you would like to see it just check my channel videos
Glenn Kayea Silicone will not hold up on a roof either but it will last longer then FlexSeal, but any homeowner doing a temp repair will end up costing more later by a professional needing to remove all the stuff you tried to fix the leak with
take a pick or cotter pin extractor and gently pull back the rubber, put butyl under such as liquid nail, then take a metal pipe strap, screw tight, clean off excess oozing butyl with acetone, then caulk with urethane like sikaflex. last 10+years available at hardware stores.
WWAAAAYYY to many words 3 minutes for a 15 second show. It says on the can to hold 12-18" away. I used it twice on gutters. Didn't help a bit (just a short time)
