I followed this dead simple video to fix a big leak and 5 minutes later it started to rain and it worked like a charm. Anyone can do this using this great product. Just know everything you wear will be destroyed if any of this stuff gets on it. Its sneaky too.. Totally worth it
This stuff works great. I had no access to my roof so I cut a hole in my roof and added a roof hatch. I sealed the hatch exactly the way this video does. it has not leaked for six years so far not even a drop. this stuff works great. I got this from home depot.
I had a roof "repaired" using this product 3 years ago and I'm sitting in my bedroom with water dripping through my ceiling. There is a 5 year warranty from the company that did the work (Mr. Roof Repair in Toronto) and I have a call in to them. I'm wishing now that I paid to have the roof repaired by replacing the plywood and flashing.
Nice to warn that this stuff lasts only about 2 years and to get a real roofer. My roofer put down a failed torch-down. Next this really cool "new" product with no fix. I'm here to learn as much as I can. This stuff might give me options. Get the leak fixed while I'm trying to find a good roofer. I'd like to find an honest one too, but that might be asking too much.
Teddy, Same here. Failed single ply torch-down on a tar and gravel built up roof. He used APP Modified Bit and the 200 sq ft patch is lower than the roof because he didn't build it up properly so now we have ponding and leaking. Please share if you found anything. Videos, materials etc... Thanks!
Hello. Would it ever be necessary to add two layers of the karnak 31 fiberglass membrane? What is the opening in a roof is a few inches in diameter? Would that still be covered and secured by one layer of the fiberglass membrane?
This stuff looks great. So If there if i don't know exactly where the leak is I can basically use this stuff at where the sheets meet and/or even at the edges? Right? Ive got a flat roof and a leak into a hand made shed with no slope so water stays on top. I dont know where the leak is so im planning on just sealing all at where all the sheets end.
If you do not know where the leak is coming in, it is best to address all points of potential entry including flashings, joints, penetrations, parapet cracks, etc..
Here's a serious tip for all type roofs where underwater repairs are needed , sweep away any lose gravel , next pour a circle of masons mortar around the repair area , the mortar will create & watertight dam & you can " bail " out all water from the leak area , spud & dry the area , 5 course the split/puncture in a 100% clean & dry environment , after finished you shovel up the mortar into a garbage bag , or come back when it's dry & pick up the cured mortar & toss in garbage , the mortar trick will work when water is a foot deep , I've done it many times . Oh btw Karnak makes good products , I remember back when they used to tape quarters on the underside of each bucket lid , probably before most roofers time but it was a sales technique that made roofers want to open a new pail of mastic constantly , that would of been in the late 70's & early 80's era .
Detu Maki because when water is pouring inside the building the main concern is stopping the leak ,not a material reaction that takes weeks to happen ,no wet repair is permanent to begin with so weather it's a pvc,BUR , Hypalon ,EPDM , Coal Tar pitch etc a true repair is required in dry weather .
Michael Ledford pvc and tpo can be welded in water below 2", which your roof would never pass ibc if you had that much water. not that it doesn't happen. but still, tar? i mean I've had a gut shovel water back enough to reduce the pound to a workable height just long enough to patch. there's so many better ways to stop the water bentonite (works but... well yeah you're using kitty litter), self level silicone which works in seams and small holes and is neater and won't cause chemical decay which you have to cut out, but it won't work well on gashes. you can take a probe on a membrane roof that is anything but adhered and hook the probe through a hole, lift the membrane up enough to dry and work with, you can take eternabond which won't root any above mentioned roof except tpo and sticks even wet, and sticks quicker, easier, And cleaner if you're willing to spend the cash. you can use butyl based caulk like liquid nail, water cut-off, mastic seal, etc and it sticks under water to the wettest surface (apply spit to finger for this trick), you can even take a piece of small metal cut 2"bigger than hole, line both sides with mastic Tape then use stitch screws with washers. this will temp attach the membranes with a seal that will be water tight for at least a few days (more if you hit deck but that's a situational thing) and none of these rot the membrane, except the world's least chemically resistant product tpo. and heck metal is way cheaper. plus plastic cement would have to always be cut out and replaced on every roof type but tarand some foam. that means metal (corrode finish), tpo (chemical deterioration), pvc (deplasticizes it), hypalon or cspe (chemical deterioration), epdm (dries and cracks), urethane/silicone/acrylic/non-tpo thermo based roofs (dries and cracks). i mean heck 9-1-1 roof patch is cheaper and will soak up water. but honestly if your concern is just cheap shotty one shot fixes for one product fits all, eternabond works on all non-tar roofs with none of the mess for about as long if not longer than tar and in all cases could just be patched over and buried, unlike tar which has to be cut out on the above mentioned roofs before permanent patching.
You can use other products of ours that do the same thing for your mobile mobile home metal original skin. Those products are KarnakFlex and KarnaFlex WB. Here are the links: www.karnakcorp.com/product/502ms-karna-flex-sealant/ www.karnakcorp.com/product/505ms-karna-flex-wb-sealant/
I have a balcony over part of my living room. We have had water leakage and damage 4 times now over the last 8 years. The balcony floor is made of cement but the leaks are coming from the sides where the brick meet the cement. We have used roofing sealer to fix this in the past but it only last a year or two and we get a new leak ruining our ceiling below each time. Can we use your product somehow in the corners where the leaks are?
Tuxedofrank22 To seal leaks in brick and concrete, I don't recommend this product. I suggest utilizing a Urethane Product such as Sonneborne NP-1 or having a Masonry Repair professional perform a "Tuck and Point:" repair in the brick joints.
In your experience with rolled roofing, is the leak typically the seams? I have rolled roofing on porch roof. It’s leaking near the corner where lots of water runs off. I put a tarp on it abt 5 months ago but it has finally evaded the tarps ability to keep the water out. I’m going to fix the entire roof eventually but for now just need to patch it. Should I just cover all the seams with this? Of course if I see any obvious single spots I will apply. But again, are the seams usually the culprit?
Ah thanks !! That's what I was looking for. Actually, I first looked on Rubr-coat but it seems it only comes in 5 galons and I need just less than a gallon to install two area vent covers when. Did I miss or you didn't say how much time it needs to cure ? Anyway, since it works underwater, it will work on foundation when I install the vents and cover back with dirt. On the other hand.... I can't find it locally so I'll postpone the repair a little longer.
Looks easy. Can you put some kind of white paint over it? The reason why I ask is that white would reflect light to minimize heating on a hot summer day.
Karnak Roofing, I have a Gaco silicon flat roof but water from rain has migrated over form 3 foot high parapets surrounding entire flat roof. The waterproof paint applied on the outside of the parapet walls is/was not waterproof so now I have all kinds of open water produced blisters all over my roof and its now leaking inside my house. My question is will this adhere to wet silicone Gaco silicon that has blistered up? TY in advance
Thank you for the input Lisa. We are working on a web-site update, but it is taking longer than expected. Thanks for hanging in there. If you need immediate assistance you can call 800-526-4236 and ask for our Tech. Dept. or e-mail info@karnakcorp.com and you will receive a prompt reply.
I've bought several tubes of this product. On the side it says do not use with EPDM or PVC (and I think one other thing). I would like to know why I can't use it with those things and how I would recognize them. What's the worst that can happen? What do I use with EPDM or PVC? Also, I would have asked this question on your website but there is no e-mail contact form or information there. I don't want to call and wait I'd rather just send a question in five seconds via e-mail and then get a reply some time later. So I think you should allow people to contact you via e-mail.
+RestBreak EPDM, PVC, and TPO roofs are non-asphalt compliant. it dries out the membrane causes them to get brittle and crack. You're talking about taking a potentially 40 year roof system and reducing it to 3 years if you slap asphalt. If you have a roof warranty, guaranteed void. EPDM looks like rubber on your tire. PVC and TPO are typically white, shiny, and flat. Run your hand on it. Is the membrane almost completely smooth? it's not modified. Modified, even "Smooth Modified" has a rougher surface to it then any EPDM, TPO or PVC I've ever seen.
Good day ,my roof is 35*25 ft. Only after six months workers finished, it started leaking.After rain I can see all wet portion from downside, can you please give any solution
Richard Singerline Hi Richard. Sorry for the late reply. The product can be used in all types of weather. It is of course a bit harder to use when extremely cold. Ideal conditions are 40 degrees and rising.
I use Karnak 19 Ultra Rubberized Flashing on a daily base ( Per my bose ) And I can tell you that this product does NOT work on any wet surface at all !!! It MUST be applied to a 100% cleaned/dried/prepped out roof area POINT BLANK ! And if you don't believe me just READ the side of the can !
+Doug Guertin Ive been using Ultra 19 for 7 years in water on a daily basis for repairs. It just takes a skilled trowel to press it in. use a large lump, apply pressure to push the water out to get the initial stick, and then smooth it out to make it look good before applying membrane. It is difficult, yes, but a skilled hand and a strong trowel has no problem.
I tried telling him that but he is a joke !!! I have been a waterproofer with union local54 worker for 19 yrs. now & I am in the service department . Very misleading he is .
I fear that after so many years you've never applied underwater. That is something we learn in less than a year where I'm from. There's so many tricks. On a light pool you can push back water and quickly spray primer to push out residual water, then even when the new water comes in your pooky can work. There's heating up the plastic cement nice and hot so you can put it down and it actually keeps water back, aiming you trowel it in right i suggest a margin trowel myself.
We have a flat deck with a slope under our 2nd story deck that is leaking. Will this stuff stick to Betchethene? (Don't know if that's spelled right. It's like black rubber that had an adhesive backing when it was applied).
wounder if this stuff comes in other colors. I know black is the best color for use in solar heating. So i wounder if for other applications like small work sheds using it on the entire roof for a good seal but not turn the shed into a oven in the summer time. It be also nice if there other colors because this looks like it be a nice products for patching RV Roofs if can match the color.
Good News! We now have a product that is available in Black, Gray or White for Rubber Roofs and RV's. It is called KARNAK 502MS Karna-Flex. Stay tuned for video. Product is coming to a store near you soon!
The data sheet of Karnak 19 ultra mentioned on it surface preparation that the surface must be dry ??????????? big contrast need some clarification from Technical Dept.
عبدالوهاب محمد Thanks for your observation. The product works great under water for emergency repairs, but the best application for any repair is in ideal dry conditions.
KARNAK Roof Coatings so you call emergency repairs a permanent solution, thats misleading. Wht dont you tell the truth and say, Karnak 19 is better than regular flashing cement and can be easily applied in a puddle of water for emergency waterproofing purposes. Consult a licensed roofer soon.
HD carries some in certain areas of the country, but you can find them at our network of distributors seen here on our website www.karnakcorp.com/store-locator
HI , i like your video , but i have i idea and i want your adviceI want to isolet my roof with rober , can i buy some rober to the mesure of my roof ? , is this a good idea?
We have many distributors throughout Pennsylvania. You can find our list of distributors on our website under "Where to Buy". Be sure to call them ahead of time to make sure they have the product you are looking for in stock before making the trip! See this link: www.karnakcorp.com/store-locator
You can purchase our products for shipping on Alibaba.com us102752422.trustpass.alibaba.com/company_profile.html?spm=a2700.details.90030.1.29a945c2mzRNrc
Yes, it is available in the UK! We are working on getting on the shelves in Jewson's and Travis Perkins, but you can find us in many SIG locations. Please contact our UK partners Liquid Roofing Systems at lrs-systems.co.uk/ for information on specific store stocking locations.
That depends on a number of factors, like the depth of the crack, the roof material type, and the age of the roof. Feel free to call us at 800 526 4236 and ask for our Technical department to answer any questions.
19 Ultra Rubberized Flashing Cement may be used without fabric reinforcement on hairline cracks but for larger cracks up to 1/2 inch and for longer service life over hairline cracks we recommend using either our Asphalt Saturated Cotton Fabric or Fiberglass Membrane.
@@KARNAKroofcoatings I wish I could show you what I have. It's yellow fiberglass strip and also I just so happen to have a black roll of screen mesh. Can I substitute?
You can order it from Alibaba.com. Here is the link: www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.gallery_search_cps.normalList.5.6f7c7c441sAZg8
What about the puddling? That needs to be addressed too other than just the leak, if puddle not repaired, it will find its way through no matter what you do to the surface and once again, with more rain, more leaking. Guranteed!
I've been using this for about 10 years. Of all roofing repair materials for modified roofing, this has been three most reliable brand for small scale repairs, but only for a very small selection of roof types (if your roof isn't shingles or what's in the video, do not use it, you can cause more damage then good)
jeremy baumgart yes, but will yellow the coating where it touches it. you are better off going back with Karnak 501 elastocoat - Edited. Sorry for putting 502 too much coating in my lungs i guess.
+Detu Maki for the price vs performance increase if your using white elastomeric coatings it's worth the cost to buy Garland Corp product called white knight . If you have access to a Tremco product called sheeting bond that shit will work at the bottom of a swimming pool ,there is no roofing product made that's half as sticky as sheeting bond ,it's nasty stuff .
Butyl based elastomeric and urethane based coatings eventually peel and trap layers between the "membrane" of the coating and the roof, causing tar roofs to prematurely age and become damaged. Or, worst case scenario, completely separate and fly off. Karnak 501 is a Acrylic Based coating which will actually bond to asphalt. My apologies for accidentally putting 502 down before, I've had these nasty coating jobs on y brain for too long and got all jumbled up.
If the 19 Ultra is being used to stop water entry as an emergency repair it’s acceptable not to worry about the trapped water until conditions allow to make the proper repairs. At that point, water must be removed and the wet material replaced.
Hello gentlemen, - it appears most of the comments are over a year old. I was wondering where I could procure Karnak 19 Ultra and the 31 fiberglass since my local Home Depot and Lowes does not carry the product. Is there anywhere near Sarasota Florida that I can purchase Karnak Ultra 19? Any help would be greatly appreciated. Thanks in advance.......
RSG Roofing Supply Group AND ABC Roofing Supply both say they are in your area and, at least where I live, sell Karnak brands. I caution against using this product on anything other than a tar roof. Bitumen it is officially called. Using on a PVC, TPO, EPDM roof may actually damage your roof and cost you more money in the long run. Example: It could have been patched with a 6" patch, you put this tar on it and contaminated a roof that was NOT tar, now a 2'x2' patch is required so be sure you know what kind of roof you are repairing before applying a repair. Also keep in mind that if you are going to fix it this way, it is not a permanent repair. It is a VIABLE repair, yes, but it will never be a permanent one.
Although the product will work on a metal roof, it will not be a long term solution as metal roofs have excessive expansion and contraction. We recommend our elastomeric product KARNAK 502 Karna-Flex Sealant for long term repairs on metal roofs. Thank you for supporting KARNAK products.
This trowel is approximately 2" by 5" and it is a standard smooth-edged trowel. You can find at most hardware stores. Like this comment if you think we should make Karnak branded trowels!
That would not be efficient labor wise. the best option would be to make the repairs with this product, and then apply a liquid roof coating to the entire roof to protect it.
19 Ultra is the only asphalt roof repair cement that can be considered a "permanent repair" under water. It's only available in black. However, Karna-Flex (a product that comes in white) can be used to make permanent repairs to dry asphalt roofs (as well as TPO, PVC, Hypalon, EPDM, Metal, Concrete, Spray Foam), as well as just temporary (!) repairs to applicable wet roofs. For more information feel free to visit our website or contact us directly!
Moisture barrier, Recovery board, mechanically fastened 180 sanded base with torched laps, staggered wall and curb stripping (base) or soprema peel and stick 180 wall stripping and then with a staggered cap shield for sun protection, and staggered wall and curb stripping.( cap) Proper bleed out and youll have a roof for 30 40 years. I deal with a lot of water and ice and water build up, the mechanniclly fastened base help the roof to move with the changing conditions, makes for easy repairs
You can find our products on AliBaba.com. Here is the link: www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.gallery_search_cps.normalList.5.41d27c44mVI8Ag
I don't know why your videos target only a particular type of roof when your product is specified to repair shingles,concrete, metal or asphalt roofs. you should try and demonstrate the product application in all the types stated on the container of your product because I specifically bought my product for a coloured metal roof.
It depends on how much dribble is leaking out of his mouth. Be sure to do a three-course repair with Karnak 31 fiberglass membrane for a truly tight seal. The warranty will cover this job for 5 years.
You can order it on Alibaba.com www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.galleryofferlist.normal_offer.d_image.7af67c444ZvBCF
You can order it on Alibaba. www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.galleryofferlist.normal_offer.d_image.7af67c443UAxUq
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I followed this dead simple video to fix a big leak and 5 minutes later it started to rain and it worked like a charm. Anyone can do this using this great product. Just know everything you wear will be destroyed if any of this stuff gets on it. Its sneaky too.. Totally worth it
it's a temporary fix... i've done a lot of these
I did a lot of such repairs for thirty years, it's all in finding where the water is getting in to get the right spot.
That's definitely a major part of it!
Thank you for the great video! I can do it myself now. So happy I don't have to wait for my husband to fix the garage roof!!!
Same, same
We're happy too! Being a women-owned business, we ain't gon' wait on no man to fix the garage roof!
@@KARNAKroofcoatings you are an embarrassment
This stuff works great. I had no access to my roof so I cut a hole in my roof and added a roof hatch. I sealed the hatch exactly the way this video does. it has not leaked for six years so far not even a drop. this stuff works great. I got this from home depot.
Thank you for sharing your experience!
I had a roof "repaired" using this product 3 years ago and I'm sitting in my bedroom with water dripping through my ceiling. There is a 5 year warranty from the company that did the work (Mr. Roof Repair in Toronto) and I have a call in to them. I'm wishing now that I paid to have the roof repaired by replacing the plywood and flashing.
This butchers work ,you need to hired proper torch down membrane guy .
Not from you tube
Sorry to hear that!
Nice to warn that this stuff lasts only about 2 years and to get a real roofer. My roofer put down a failed torch-down. Next this really cool "new" product with no fix. I'm here to learn as much as I can. This stuff might give me options. Get the leak fixed while I'm trying to find a good roofer. I'd like to find an honest one too, but that might be asking too much.
Teddy, Same here. Failed single ply torch-down on a tar and gravel built up roof. He used APP Modified Bit and the 200 sq ft patch is lower than the roof because he didn't build it up properly so now we have ponding and leaking. Please share if you found anything. Videos, materials etc... Thanks!
Teddy L Boulden Hiring a Professional Roofer is our Number one recommendation to obtain a proper repair.
It fixed a 10 foot split that was under water. It stopped the leak, no call back. Love the stuff.
Can you please list down the materials required to do the job and where to get them from. I got a leakage in my roof’s concrete slab.😞
Best way to repair underwater leak problems. Thanks for sharing such an interesting video.
Thank you for supporting our products. We really appreciate your trust.
Melbourne Roofing Thank you for your support Melbourne Roofing!!! Professional roofers are our best friends!
Hello. Would it ever be necessary to add two layers of the karnak 31 fiberglass membrane? What is the opening in a roof is a few inches in diameter? Would that still be covered and secured by one layer of the fiberglass membrane?
Nice job sir because of your vlog tutorial I got some knowledge from you
Glad to hear that!
This stuff looks great. So If there if i don't know exactly where the leak is I can basically use this stuff at where the sheets meet and/or even at the edges? Right? Ive got a flat roof and a leak into a hand made shed with no slope so water stays on top. I dont know where the leak is so im planning on just sealing all at where all the sheets end.
If you do not know where the leak is coming in, it is best to address all points of potential entry including flashings, joints, penetrations, parapet cracks, etc..
Here's a serious tip for all type roofs where underwater repairs are needed , sweep away any lose gravel , next pour a circle of masons mortar around the repair area , the mortar will create & watertight dam & you can " bail " out all water from the leak area , spud & dry the area , 5 course the split/puncture in a 100% clean & dry environment , after finished you shovel up the mortar into a garbage bag , or come back when it's dry & pick up the cured mortar & toss in garbage , the mortar trick will work when water is a foot deep , I've done it many times .
Oh btw Karnak makes good products , I remember back when they used to tape quarters on the underside of each bucket lid , probably before most roofers time but it was a sales technique that made roofers want to open a new pail of mastic constantly , that would of been in the late 70's & early 80's era .
Why would you suggest tar on any non tar roof....
Detu Maki because when water is pouring inside the building the main concern is stopping the leak ,not a material reaction that takes weeks to happen ,no wet repair is permanent to begin with so weather it's a pvc,BUR , Hypalon ,EPDM , Coal Tar pitch etc a true repair is required in dry weather .
Michael Ledford pvc and tpo can be welded in water below 2", which your roof would never pass ibc if you had that much water. not that it doesn't happen. but still, tar? i mean I've had a gut shovel water back enough to reduce the pound to a workable height just long enough to patch. there's so many better ways to stop the water
bentonite (works but... well yeah you're using kitty litter), self level silicone which works in seams and small holes and is neater and won't cause chemical decay which you have to cut out, but it won't work well on gashes. you can take a probe on a membrane roof that is anything but adhered and hook the probe through a hole, lift the membrane up enough to dry and work with, you can take eternabond which won't root any above mentioned roof except tpo and sticks even wet, and sticks quicker, easier, And cleaner if you're willing to spend the cash. you can use butyl based caulk like liquid nail, water cut-off, mastic seal, etc and it sticks under water to the wettest surface (apply spit to finger for this trick), you can even take a piece of small metal cut 2"bigger than hole, line both sides with mastic Tape then use stitch screws with washers. this will temp attach the membranes with a seal that will be water tight for at least a few days (more if you hit deck but that's a situational thing) and none of these rot the membrane, except the world's least chemically resistant product tpo. and heck metal is way cheaper. plus plastic cement would have to always be cut out and replaced on every roof type but tarand some foam. that means metal (corrode finish), tpo (chemical deterioration), pvc (deplasticizes it), hypalon or cspe (chemical deterioration), epdm (dries and cracks), urethane/silicone/acrylic/non-tpo thermo based roofs (dries and cracks). i mean heck 9-1-1 roof patch is cheaper and will soak up water. but honestly if your concern is just cheap shotty one shot fixes for one product fits all, eternabond works on all non-tar roofs with none of the mess for about as long if not longer than tar and in all cases could just be patched over and buried, unlike tar which has to be cut out on the above mentioned roofs before permanent patching.
This is for emergency repair.
Wish that would work on metal original skin of old-mobile homes. Looks Amazing!! wow
You can use other products of ours that do the same thing for your mobile mobile home metal original skin. Those products are KarnakFlex and KarnaFlex WB. Here are the links: www.karnakcorp.com/product/502ms-karna-flex-sealant/ www.karnakcorp.com/product/505ms-karna-flex-wb-sealant/
I have a balcony over part of my living room. We have had water leakage and damage 4 times now over the last 8 years. The balcony floor is made of cement but the leaks are coming from the sides where the brick meet the cement. We have used roofing sealer to fix this in the past but it only last a year or two and we get a new leak ruining our ceiling below each time. Can we use your product somehow in the corners where the leaks are?
Tuxedofrank22 To seal leaks in brick and concrete, I don't recommend this product. I suggest utilizing a Urethane Product such as Sonneborne NP-1 or having a Masonry Repair professional perform a "Tuck and Point:" repair in the brick joints.
Does that product work on concrete roof; sorry I m from a island 🏝
Yes, 19 Ultra Rubberized Flashing Cement may be applied to exterior concrete roof surfaces.
Which island?
thank you I hope homedepot has this👍🏾
If you need support with finding where to purchase our products locally, feel free to reach out via our website!
In your experience with rolled roofing, is the leak typically the seams? I have rolled roofing on porch roof. It’s leaking near the corner where lots of water runs off. I put a tarp on it abt 5 months ago but it has finally evaded the tarps ability to keep the water out. I’m going to fix the entire roof eventually but for now just need to patch it. Should I just cover all the seams with this? Of course if I see any obvious single spots I will apply. But again, are the seams usually the culprit?
They are and along edges where metal drip edge is installed.
Roofs typically leak at seams or terminations, and you can use this product at those locations.
Ah thanks !! That's what I was looking for. Actually, I first looked on Rubr-coat but it seems it only comes in 5 galons and I need just less than a gallon to install two area vent covers when. Did I miss or you didn't say how much time it needs to cure ? Anyway, since it works underwater, it will work on foundation when I install the vents and cover back with dirt.
On the other hand.... I can't find it locally so I'll postpone the repair a little longer.
It will be waterproof as soon as you apply it.
This video is awesome and is possibly going to save me big dollars.
Thank you for commenting!
Looks easy. Can you put some kind of white paint over it? The reason why I ask is that white would reflect light to minimize heating on a hot summer day.
Yes, you put a white coating on top of this. Contact our Technical Department to discuss your specific situation 800 526 4236
Can we use it to repair rubber roof? I am looking forward to hearing from you. Thank you
Use rubber to repair rubber. And hp250 glue /primer and make sure the area is clean using splice wash
We'd recommend using KarnaFlex in that case
Hi...where can i get this product in South Africa ?
You can order our products on AliBaba.com
Awesome cement!!! too good !! where can I buy in the United Kingdom ??
Thank You! And please feel free to use the store locator on our website to find your nearest distributor!!
similar technique can be used to apply sunscreen
Karnak Roofing, I have a Gaco silicon flat roof but water from rain has migrated over form 3 foot high parapets surrounding entire flat roof. The waterproof paint applied on the outside of the parapet walls is/was not waterproof so now I have all kinds of open water produced blisters all over my roof and its now leaking inside my house. My question is will this adhere to wet silicone Gaco silicon that has blistered up? TY in advance
This is a complicated situation - so please call Karnak Technical at 800 526 4236
Very good video. Your website is lacking. :-)
Thank you for the input Lisa. We are working on a web-site update, but it is taking longer than expected. Thanks for hanging in there. If you need immediate assistance you can call 800-526-4236 and ask for our Tech. Dept. or e-mail info@karnakcorp.com and you will receive a prompt reply.
KARNAK Roof Coatings т
I've bought several tubes of this product. On the side it says do not use with EPDM or PVC (and I think one other thing). I would like to know why I can't use it with those things and how I would recognize them. What's the worst that can happen? What do I use with EPDM or PVC?
Also, I would have asked this question on your website but there is no e-mail contact form or information there. I don't want to call and wait I'd rather just send a question in five seconds via e-mail and then get a reply some time later. So I think you should allow people to contact you via e-mail.
+RestBreak EPDM, PVC, and TPO roofs are non-asphalt compliant. it dries out the membrane causes them to get brittle and crack. You're talking about taking a potentially 40 year roof system and reducing it to 3 years if you slap asphalt. If you have a roof warranty, guaranteed void. EPDM looks like rubber on your tire. PVC and TPO are typically white, shiny, and flat. Run your hand on it. Is the membrane almost completely smooth? it's not modified. Modified, even "Smooth Modified" has a rougher surface to it then any EPDM, TPO or PVC I've ever seen.
We have updated our website, and now we have a contact form that works!
Good day ,my roof is 35*25 ft. Only after six months workers finished, it started leaking.After rain I can see all wet portion from downside, can you please give any solution
Feel free to reach out to us via our website for support with our products!
Does this work on concrete/cement roofs?
Yes, it adheres well to concrete.
What would you use to re finish flat part? I have the same style roof.
It depends on your membrane type. Feel free to call our technical department if you have more questions.
Can Karnak be used on concrete in water?
Yes, 19 Ultra can be used to seal cracks on concrete slabs.
What about temperature restrictions. Living in Northeast US temperatures will be below freezing at night and I have a bad leak that needs repairing
Hi Richard, I am just outside Philly. Did you get an answer? I am guessing you got water like I did from the storm before thanksgiving.
Richard Singerline Hi Richard. Sorry for the late reply. The product can be used in all types of weather. It is of course a bit harder to use when extremely cold. Ideal conditions are 40 degrees and rising.
I use Karnak 19 Ultra Rubberized Flashing on a daily base ( Per my bose ) And I can tell you that this product does NOT work on any wet surface at all !!! It MUST be applied to a 100% cleaned/dried/prepped out roof area POINT BLANK ! And if you don't believe me just READ the side of the can !
+Doug Guertin Ive been using Ultra 19 for 7 years in water on a daily basis for repairs. It just takes a skilled trowel to press it in. use a large lump, apply pressure to push the water out to get the initial stick, and then smooth it out to make it look good before applying membrane. It is difficult, yes, but a skilled hand and a strong trowel has no problem.
I call BS , it won't last and if you say it does you are a liar
I tried telling him that but he is a joke !!! I have been a waterproofer with union local54 worker for 19 yrs. now & I am in the service department . Very misleading he is .
I fear that after so many years you've never applied underwater. That is something we learn in less than a year where I'm from. There's so many tricks. On a light pool you can push back water and quickly spray primer to push out residual water, then even when the new water comes in your pooky can work. There's heating up the plastic cement nice and hot so you can put it down and it actually keeps water back, aiming you trowel it in right i suggest a margin trowel myself.
Thanks for your support!
Can i use this to stop leaking Porch ,having Tiles .
If it is a tile roof on your porch, you must repair or replace the tiles. This would most likely stop your leaks, but would be not visually pleasing.
We have a flat deck with a slope under our 2nd story deck that is leaking. Will this stuff stick to Betchethene? (Don't know if that's spelled right. It's like black rubber that had an adhesive backing when it was applied).
Our products are designed to be used only in roofing applications. Feel free to contact our Technical Department with any further questions!
wounder if this stuff comes in other colors. I know black is the best color for use in solar heating. So i wounder if for other applications like small work sheds using it on the entire roof for a good seal but not turn the shed into a oven in the summer time.
It be also nice if there other colors because this looks like it be a nice products for patching RV Roofs if can match the color.
Troy Foxxin Hi Troy. Regrettably it is only available in white.
Nca, if Karnak said is white, then is white
Good News! We now have a product that is available in Black, Gray or White for Rubber Roofs and RV's. It is called KARNAK 502MS Karna-Flex. Stay tuned for video. Product is coming to a store near you soon!
KARNAK Roof Coatings Is this available in India?
If so how can i get it?
The data sheet of Karnak 19 ultra mentioned on it surface preparation that the surface must be dry ???????????
big contrast need some clarification from Technical Dept.
عبدالوهاب محمد Thanks for your observation. The product works great under water for emergency repairs, but the best application for any repair is in ideal dry conditions.
KARNAK Roof Coatings so you call emergency repairs a permanent solution, thats misleading. Wht dont you tell the truth and say, Karnak 19 is better than regular flashing cement and can be easily applied in a puddle of water for emergency waterproofing purposes. Consult a licensed roofer soon.
Can I apply this tech to the ponding area right under the AC unit, on my flat asphalt roof?
Yes you can. If you need additional information please contact our technical hot-line 800-526-4236.
Yes
Hi,
Do you sell this or distribute it in the UK?
Yes, visit our website www.karnakcorp.com to find our UK distributor
Can I use Karnak 19 Ultra Rubberized Flashing on a torch down flat roof repair ?
padive77 Yes you can.
As a DIYer where can I buy your products? HD doesn't carry much.
HD carries some in certain areas of the country, but you can find them at our network of distributors seen here on our website www.karnakcorp.com/store-locator
HI , i like your video , but i have i idea and i want your adviceI want to isolet my roof with rober , can i buy some rober to the mesure of my roof ? , is this a good idea?
Thank you! Please reach out to our Technical Department with any questions!
Where can i buy this i have a concert roof that is leaking like hell
You can find our distributors at our website www.karnakcorp.com/store-locator
I live in Pennsylvania where can I buy your products?
We have many distributors throughout Pennsylvania. You can find our list of distributors on our website under "Where to Buy". Be sure to call them ahead of time to make sure they have the product you are looking for in stock before making the trip! See this link: www.karnakcorp.com/store-locator
Where I can buy it in India. Please reply
You can purchase our products for shipping on Alibaba.com us102752422.trustpass.alibaba.com/company_profile.html?spm=a2700.details.90030.1.29a945c2mzRNrc
is it available in the UK or is there an equivalent product.
Yes, it is available in the UK! We are working on getting on the shelves in Jewson's and Travis Perkins, but you can find us in many SIG locations. Please contact our UK partners Liquid Roofing Systems at lrs-systems.co.uk/ for information on specific store stocking locations.
I've looked at Home Depot and Lowes, can't find this product at either...Where is it available?
You can find us at Home Depot, or you can order online at Alibaba.com
Does this work in a roof with asphalt
membranes?
+kimbyann17 Yes. In fact an asphalt membrane, in my opinion, will get stuck well with it, especially if it's granulated
Yest it will stick very well to asphalt membranes.
can i use this product in dry roof where the roof is craked
That depends on a number of factors, like the depth of the crack, the roof material type, and the age of the roof. Feel free to call us at 800 526 4236 and ask for our Technical department to answer any questions.
What if you just use the paste and not the flashing ? Will it still work 🤔?
19 Ultra Rubberized Flashing Cement may be used without fabric reinforcement on hairline cracks but for larger cracks up to 1/2 inch and for longer service life over hairline cracks we recommend using either our Asphalt Saturated Cotton Fabric or Fiberglass Membrane.
@@KARNAKroofcoatings I wish I could show you what I have. It's yellow fiberglass strip and also I just so happen to have a black roll of screen mesh. Can I substitute?
We use and like Karnak
Glad to hear that!
Is this available in Delhi?
You can order it from Alibaba.com. Here is the link: www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.gallery_search_cps.normalList.5.6f7c7c441sAZg8
What about the puddling? That needs to be addressed too other than just the leak, if puddle not repaired, it will find its way through no matter what you do to the surface and once again, with more rain, more leaking. Guranteed!
Montery12 You are absolutely right. Whenever puddling can be eliminated, it should always be. It will make the roof last longer for sure.
Does anybody knows if this stuff really works? Where I live it rains a lot and I have a flat roof above my bedroom. Please let me know
I've been using this for about 10 years. Of all roofing repair materials for modified roofing, this has been three most reliable brand for small scale repairs, but only for a very small selection of roof types (if your roof isn't shingles or what's in the video, do not use it, you can cause more damage then good)
It does!
Sir please upload a video for protuct mud roof leakage . .please please please
Mud roof leakage? We are unaware of this issue.
will this product adhere over a hot tar roof that's been coated with a elastomeric reflective white roof coating?
jeremy baumgart yes, but will yellow the coating where it touches it. you are better off going back with Karnak 501 elastocoat - Edited. Sorry for putting 502 too much coating in my lungs i guess.
+Detu Maki for the price vs performance increase if your using white elastomeric coatings it's worth the cost to buy Garland Corp product called white knight .
If you have access to a Tremco product called sheeting bond that shit will work at the bottom of a swimming pool ,there is no roofing product made that's half as sticky as sheeting bond ,it's nasty stuff .
Butyl based elastomeric and urethane based coatings eventually peel and trap layers between the "membrane" of the coating and the roof, causing tar roofs to prematurely age and become damaged. Or, worst case scenario, completely separate and fly off. Karnak 501 is a Acrylic Based coating which will actually bond to asphalt. My apologies for accidentally putting 502 down before, I've had these nasty coating jobs on y brain for too long and got all jumbled up.
You're better off using KarnaFlex in this instance.
How long this repair is going to last before it starts cracking?
2 years, if you're lucky.
That would depend on many factors, including weather, frost/heave, underlying substrate, and building movement.
What if there is water trapped under the area where you are sealing the hole?
If the 19 Ultra is being used to stop water entry as an emergency repair it’s acceptable not to worry about the trapped water until conditions allow to make the proper repairs. At that point, water must be removed and the wet material replaced.
what if you're trying to repair in the winter where there's lots of snow covered?
You would want to remove the snow from the area.
Hello gentlemen, - it appears most of the comments are over a year old. I was wondering where I could procure Karnak 19 Ultra and the 31 fiberglass since my local Home Depot and Lowes does not carry the product. Is there anywhere near Sarasota Florida that I can purchase Karnak Ultra 19? Any help would be greatly appreciated. Thanks in advance.......
RSG Roofing Supply Group AND ABC Roofing Supply both say they are in your area and, at least where I live, sell Karnak brands. I caution against using this product on anything other than a tar roof. Bitumen it is officially called. Using on a PVC, TPO, EPDM roof may actually damage your roof and cost you more money in the long run. Example: It could have been patched with a 6" patch, you put this tar on it and contaminated a roof that was NOT tar, now a 2'x2' patch is required so be sure you know what kind of roof you are repairing before applying a repair. Also keep in mind that if you are going to fix it this way, it is not a permanent repair. It is a VIABLE repair, yes, but it will never be a permanent one.
You can use the Store Locator on our website to find a local distributor of our products.
and the gloves stayed clean... WOW
Price of karnak ultra 19?
Give us a call! 800 526 4236
HELLO, CAN I USE THIS KARANAK CEMENT ON CONCRETE ROOF WITHOUT USING THE KARNAK FABRIC? THANKS
Yes, you can, but the repair will not be as strong or last as long
can i buy this rubberized flashing cement/fibreglass patch in england, uk?
Gemma Lucas Regretably No.
What to do if roof is leaking without breaking the roof??
You can use this product.
Can I apply this when the temperature is below 0C?
You can apply Karnak 19 Winter-grade at that temperature. But make sure you have the Winter-grade, not Summer-grade.
will this work on a metal roof?
Although the product will work on a metal roof, it will not be a long term solution as metal roofs have excessive expansion and contraction. We recommend our elastomeric product KARNAK 502 Karna-Flex Sealant for long term repairs on metal roofs. Thank you for supporting KARNAK products.
Hi K
Sorry Can i use this on on steel roof ?
Sory on metal Roof?
We would recommend using KarnaFlex in this case, not 19 Ultra
See above
How can we got that product? Are there any distributors in the Gulf area
عبدالوهاب محمد There are no distributors in the Gulf Area. Sorry.
What size and make is the trowel?
This trowel is approximately 2" by 5" and it is a standard smooth-edged trowel. You can find at most hardware stores. Like this comment if you think we should make Karnak branded trowels!
Does this work on rubber roofing membranes??
It works on Modified Bitumen Rubberized membranes. It is NOT designed for Single-Ply membranes.
can we apply on the pure
concrete
Yes, you can
Can this be used on whole roof repair
That would not be efficient labor wise. the best option would be to make the repairs with this product, and then apply a liquid roof coating to the entire roof to protect it.
Do they have this in white?
19 Ultra is the only asphalt roof repair cement that can be considered a "permanent repair" under water. It's only available in black.
However, Karna-Flex (a product that comes in white) can be used to make permanent repairs to dry asphalt roofs (as well as TPO, PVC, Hypalon, EPDM, Metal, Concrete, Spray Foam), as well as just temporary (!) repairs to applicable wet roofs. For more information feel free to visit our website or contact us directly!
can it be used on torch down ?????
Yes it can. Thank you.
Why not use a push broom and push off the water before you make the repair?!
That’ would be too obvious
This is a wet patch product demonstration.
is this available in the philippines?
Regrettably not at this point.
Moisture barrier, Recovery board, mechanically fastened 180 sanded base with torched laps, staggered wall and curb stripping (base) or soprema peel and stick 180 wall stripping and then with a staggered cap shield for sun protection, and staggered wall and curb stripping.( cap) Proper bleed out and youll have a roof for 30 40 years.
I deal with a lot of water and ice and water build up, the mechanniclly fastened base help the roof to move with the changing conditions, makes for easy repairs
Thanks!
Where it is found in India State Jammu and Kashmir
You can find our products on AliBaba.com. Here is the link: www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.gallery_search_cps.normalList.5.41d27c44mVI8Ag
what would you use for aspalt dormer?
Huh?
i brush away dust in water ,it has water repelling properties yes its called oil boj job look at how to move the water away will help.
Thanks for sharing this insight!
No one around here sells it and the only place I found on line only has store pick up.
Where are you located?
@@KARNAKroofcoatings Orland, Ca
where can I get these?
k jakamura All Professional Distributors and Home Depot Carry our products.
How can I order this stuff? I need it quick
If you need support with finding out where you can purchase our products locally, please reach out via our website!
@@KARNAKroofcoatings lol dang I commented on this 7 years ago 😂😂
Is it available in india? How much cost is it?
We currently do not sell to India, but if you contact us at +1 800 526 4236 we can find a way to get some to you
Can it be used on TPO roofing?
NO ! Use Eterna bond tape for TPO with a Eterna bond sealant around the cut edge's !
A better product would be KarnaFlex in that setting.
I don't know why your videos target only a particular type of roof when your product is specified to repair shingles,concrete, metal or asphalt roofs. you should try and demonstrate the product application in all the types stated on the container of your product because I specifically bought my product for a coloured metal roof.
Can definitely use on other types of roofs. The product would be applied in the same way.
hi .This product can i find in greece?
Yes, you can find our European distributor on our website.
Does it have asbestos?
No asbestos in this product, we are happy to report!
Hi is this available in India
Unfortunately, not at this time!
Where are here this product
If you need support with finding where to purchase our products locally, feel free to reach out via our website!
Good video
Thank you for commenting!
How many years did u test it. Karnak eats rubber over time. So along w the tools u need make sure u hav your 1-2 million liability policy paid up
This patch many times will outlast the roof itself.
I know a guy who won't stop talking. Can I use Karnak 19 with the fiberglass membrane to seal his mouth shut?
It depends on how much dribble is leaking out of his mouth. Be sure to do a three-course repair with Karnak 31 fiberglass membrane for a truly tight seal. The warranty will cover this job for 5 years.
Pls where is your office
We are located in northern New Jersey, give us a call if you need anything!
how i buy this product
You can find our network of distributors here on our website www.karnakcorp.com/store-locator
IS THIS AVAILABLE IN DUBAI ? TY.
You can order it on Alibaba.com www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.galleryofferlist.normal_offer.d_image.7af67c444ZvBCF
Please please please reply this I need this
Where are you located?
I need some please
Where are you located?
CAN I GET THIS IN INDIA
You can order it on Alibaba. www.alibaba.com/product-detail/Ultra-Rubberized-Cement-5-Gal-KARNAK_1700003008193.html?spm=a2700.galleryofferlist.normal_offer.d_image.7af67c443UAxUq