How to repair a flat roof leak Underwater permanently - Karnak 19 Ultra Rubberized Flashing 

it's a temporary fix... i've done a lot of these

That's definitely a major part of it!

This butchers work ,you need to hired proper torch down membrane guy . Not from you tube

Sorry to hear that!

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.

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

Thank you for sharing your experience!

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!

Yes, 19 Ultra Rubberized Flashing Cement may be applied to exterior concrete roof surfaces. Which island?

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.😞

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.

Thank you for commenting!

Glad to hear that!

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.

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..

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.

If you need support with finding where to purchase our products locally, feel free to reach out via our website!

Yes, you put a white coating on top of this. Contact our Technical Department to discuss your specific situation 800 526 4236

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

Feel free to reach out to us via our website for support with our products!

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/

+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!

It will be waterproof as soon as you apply it.

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.

Glad to hear that!

Thanks!

This is a complicated situation - so please call Karnak Technical at 800 526 4236

Thanks for sharing this insight!

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?

You can order our products on AliBaba.com

+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!

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!

You can find us at Home Depot, or you can order online at Alibaba.com

Yes, you can, but the repair will not be as strong or last as long

Glad you enjoyed! We're only a phone call away if you ever need technical advice

Montery12 You are absolutely right. Whenever puddling can be eliminated, it should always be. It will make the roof last longer for sure.

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.

Thank you! Please reach out to our Technical Department with any questions!

That’ would be too obvious

This is a wet patch product demonstration.

Yes, visit our website www.karnakcorp.com to find our UK distributor

padive77 Yes you can.

Yes, it adheres well to concrete.

Yes, 19 Ultra can be used to seal cracks on concrete slabs.

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

Thank You! And please feel free to use the store locator on our website to find your nearest distributor!!

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.

You can find our distributors at our website www.karnakcorp.com/store-locator

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.

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

Our products are designed to be used only in roofing applications. Feel free to contact our Technical Department with any further questions!

It depends on your membrane type. Feel free to call our technical department if you have more questions.

Yes, that is possible.

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.

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.

You can purchase our products for shipping on Alibaba.com us102752422.trustpass.alibaba.com/company_profile.html?spm=a2700.details.90030.1.29a945c2mzRNrc

Mud roof leakage? We are unaware of this issue.

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?

Yes you can. If you need additional information please contact our technical hot-line 800-526-4236.

Yes

I'm concerned because the implication is pooky lasts period. Even under permanent application it is a very poor roofer who pulls out plastic cement where he could torch or mop

It has hydrophobic properties, and works underwater.

@KARNAKroofcoatings- it does not work under water , idk why you are misleading people .

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.

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

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.

2 years, if you're lucky.

That would depend on many factors, including weather, frost/heave, underlying substrate, and building movement.

Gemma Lucas Regretably No.

Yes you are right. That is because this is a "Wet OR Dry" cement. The ideal situation to apply any roof repair product is in dry conditions over a clean surface. However, it has additives in it that enable it to adhere under water without a problem. The wet application is for emergency conditions where water is getting into the building, and inventory or the building itself is getting damaged.

+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.

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

Where are you located?

@@KARNAKroofcoatings Orland, Ca

عبدالوهاب محمد There are no distributors in the Gulf Area. Sorry.

You would want to remove the snow from the area.

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!

You can use this product.

This patch many times will outlast the roof itself.

No problem!

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!

Can definitely use on other types of roofs. The product would be applied in the same way.

No asbestos in this product, we are happy to report!

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.

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 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

You can apply Karnak 19 Winter-grade at that temperature. But make sure you have the Winter-grade, not Summer-grade.

Sory on metal Roof?

We would recommend using KarnaFlex in this case, not 19 Ultra

See above

Yes, you can

Yes it can. Thank you.

That's another option!

Sorry i mean paint

+Daggoth13 I wouldn't. You probably could, but honestly why would you?

Yes, you could coat on top of this product.

We are located in northern New Jersey, give us a call if you need anything!

Give us a call! 800 526 4236

Regrettably not at this point.

k jakamura All Professional Distributors and Home Depot Carry our products.

Huh?

Where are you located?

You can find our network of distributors here on our website www.karnakcorp.com/store-locator

Unfortunately, not at this time!

Check out the "Where to Buy" section on our website for information about where you can find it in your local area.

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

ecallawevad Thousands of users have become believers. Don't say no until you try it.

I live in miami i have research to buy but cant find it

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 😂😂