Thank you Issac for your honest review and for sharing your honesty with those that come seeking information. Have a Blessed Holiday Season and may next year be a profitable year for you and your employees. For those that live in California, looking for building codes. Start with Title 24 as it lays the guidelines (basis) for all county and city building codes in the State of California.

Oh gosh! I just finished my entire bathroom with Schluter and then Ardex 8&9 after watching your videos! LOL I completely agree with doing things the way you know best at the moment. I also wanted say thank you from the bottom of my heart for producing these videos. My father passed away two years ago and I depended on him for all of these types of things. When I bought my first home this past July, I struggled deeply with the daunting task of demoing and remodeling my bathroom. Your videos helped give me the confidence that I could do it without him, something I never thought possible. With many tears, trials and tribulations, I’m proud to say the bathroom is near completion and I’m confident that I could start another project. I hope to send a picture when it’s completely done. Keep doing what you’re doing and thank you. You inadvertently helped a stranger recover a little from the grief she was suffering ;)

I came to your videos because I have been in the process of adding a bathroom with a large walk-in shower to my basement. Your videos have been (and continue to be) incredibly helpful in that endeavor, and I thank you for that. When my bathroom is done I will keep coming back so I can keep learning from you AND because of your extraordinarily kind and loving spirit. In a sometimes unloving world it is so refreshing and comforting. Since love begats love there is an awful lot coming back your way. Hope you're having a good one!

I'm glad you're finally coming around with laticrete products. I do use ardex for leveling floors, but love laticrete thinsets and grout. Hydroban cementicous I have not tried but willing to make my own tests. Thanks for your shows, I think you're a straight up guy and enjoy your videos. Keep it up and fk the products that don't live up to our standards. They either improve or go away.

Appreciate your honesty and authenticity so much 🙏🙏👏👏🙌🙌 so many KZfaqrs are biased or self-censored bc of (potential) sponsorships. So thank you for showing us what you're learning along the way and not letting ego or sponsorships get in the way.

Great attitude on not being prideful and being open minded, kudos. It why I watch you, you can honestly evaluate a product and if it has issues you report it without trying to protect your ego about what you said in the past.

Im no tile guy or anything of the sort, but thanks to your vids and especially the one where u did the Denver project, i chose to go all laticrete for my shower/tub wetroom setup. I really appreciate the content you put out!

I appreciate your openness and honesty. In my searches online comparing various things (one type of roofing vs. another, one type of framing vs. another, etc.) I find that typically anyone who promotes the “best” product also SELLS that product. Even as you’ve discovered with a certain product that used to be “waterproof” and is now “water management,” it’s all marketing out there. Promises backed with no real world test results. It’s not until products start failing and guys like yourself start analyzing the failures in the field that “best practices” can really be evaluated. Thank you for your work.

Nobody should ever fault anyone for continuing to learn and be open minded. Great stuff Isaac.

Really appreciate all your work in testing these products. Awesome to see someone who is not sponsored and can give true actual results. I personally cannot stand for companies (or anyone) taking advantage of people’s trust and their “sell’s sheets.” No morals. I would work all day long and stand behind a company who is willing to work with you to better their products. ...any company say whatever they want in their marketing materials. Real life situations will proof otherwise. Thank you again!

Issac, I totally appreciate that you're doing the testing. The whole industry needs to get serious about waterproofing. It's sad that these companies sell products that don't perform the way they claim they do. Think of all the little termites that are going to starve because of the work you do! I for one appreciate it a ton!

I really appreciate your videos and logical thinking. I've decided to go with waterproofing the entire bathroom and installing a curbless and a linear drain on a raised foundation. I'm learning tons from you, but I don't want to do it myself. Thanks again for everything you do

I wish I had a time machine to go back and un watch your video talking about how great it was lol

Ive watched a fair amount of your videos over three-ish years. Waiting for a garage to start practice. Every one of these videos are incredibly informative.

Just wanted to comment on your question about drilling through glass/porcelain tile. Ive been a glazer and installing custom euro glass showers for 8 yrs and wanted to show how we drill through this stuff. As for glass tiles we us 4 different bits, one is the spade bit like you mentioned I usually use them to start the hole is glass so my next bit wont walk on me. ( can also take a masonry bit and LIGHTLY tap and spin the bit to getting that starting point) Ill us that spade or masonry bit drill till i get a small hole going. Then I go to a round Diamond coated bit to finish the hole off. 3rd bit is CRL's Super bit with this bit it takes the longest but can be done. I recommend to use the Diamond bit works best. And ALWAYS cool bits off or you can crack the glass tile and burn up the bits. As for drilling through porcelain we use those CRL Super bits they have been the best bit we have found so far. Also keep these cool and you can us the hammer drill on them but we notice if you finish through the tile with these bits the head tends to break off, not all the time but quit often. we will usually finish the hole with our cheaper basic masonry bit. Last bit is a Prism bit, you can us this bit start to finish highly recommend having this bit in the tool box as well. But I will say the most important part is that the glass tiles have full coverage if not most the time the tiles will crack. Hope this all makes sense. Listed bits below Hope this helps some people out. CRL Super Bit www.crlaurence.com/crlapps/showline/offerpage.aspx?ProductID=159747&GroupID=63165&History=39324:112:1034&ModelID=63165 Diamond Bit (not the one we used but similar bit) www.nssusa.com/Stone-Dry-Wet-Non-Core-Drill-Bits-p/s_non_core_drill_bits.htm Spade Bit www.crlaurence.com/crlapps/showline/offerpage.aspx?ProductID=10771&GroupID=5112&History=39324:386:4900:5398:4900:5103&ModelID=5112&pom=0# Prism Bit www.crlaurence.com/crlapps/showline/offerpage.aspx?ProductID=10777&GroupID=5104&History=39324:386:4900:5398:4900:5103&ModelID=5104&pom=0

You epitomize the work professional. Thanks for sharing your knowledge.

Bravo! Keep your reviews open, honest and your tests as transparent as your glass box and will continue winning the respect of your viewers.

I appreciate your objectivity! Thank you!

Great video and explanation of your methods. Keep up the great work.

I love the LATICRETE. Our local rep has always taken my calls. The 253 and 254 is some boss stuff. Great video!

Great live stream Isaac, I really enjoyed it. A lot of good information.

You’re da man coach! I’m gonna be doing a big shower at home and your videos are giving me the confidence to practice. If you’re ever in Hawaii hit me up and I’ll share my work and you and the Ohana can stay on my property.

Appreciate your honesty

It’s amazing how rats Flee a ship when the results don’t match the built up from advertising. This is why your videos have so much merit. Your a business owner and installer using the product just as any of us would. So these findings have a great amount of knowledge. All things change over time , if they didn’t we still be riding horses that shit in the street. Keep up your great work. 👍 It’s nice seeing the real world results and it’s up to Us to then decide from that what we feel is best.

You're the man! I submitted a message on your website about some products I think you should absolutely test out. I'd even donate and ship them to you if you're interested!

I've been setting tile for 35 years and have used all three types of ditra on extremely big jobs. I am shocked at how well these products actually work. But you hit the nail on the head by stating that there only good if installed correctly and lots of times they are not been there and have seen it. Keep up your videos man there great and we can always learn from each other. Your right about reps they usually don't know there own ass from you know what.

Welcome to the club. I’ve been using Laticrete products for 12 years now. I was a custom kid in 1994 and the comparison between the two, hands down Laticrete is the better product. I’ve never used Kerdi and I’m not a fan of red guard. Since discovering Laticrete, I’ve never had an issue with any of my showers(except one, that was my fault). I’ve been in the game for 28 years now and I appreciate your insight and the techniques you use. I’m always doing research and keeping up with the kids today. But Laticrete is the way to go.

Would be cool to see tests on some of these waterproofing boards and how stiff they are. You could set up a fake wall and with 16in spacing and 12in spacing and push in between the gaps to see how much they flex. Maybe even install some tile on it and push on it after it dries to see how much it flexes.

Well said brother get rid of your Ego and pride and you will truly grow and learn!!

Great job Isaac ! Happy thanksgiving. I’m a Hydroban guy, pre float, lift ABS drain flange with 1/8” U spacers for better weep drainage, Hydros expensive here on the big isl! Like 430.00$ a Fiver!!🥴😬🤙🏽cheers

Learning a lot from your videos. Have you ever tested any of the Flex Seal products as a waterproof barrier?

Please do the testing on the membrane and the other products

I don't know about porcelain but 1/2 inch and 3/4 slap walls are the best, no grout lines, let's possibility of water running behind tile, your videos are excellent I enjoy them very knowledgeable thank you....

Laticrete is our manufacturer of choice, best warranty in my opinion. They invented thinset and have had much time to refine the formulas. Also provide thinsets and setting materials for just about every application. Their reps are great and in the very few times I've had any issues mainly grout discoloration they have come through everytime. They even payed us to replace their plasma grout that had failed after one year.

Would you recommend sealing the kerdi board tape and drains with the hydroband centious

Thanks for this Issac. I’m going to look for your testing videos. My first inclination was, did Schluter or Ardex have any comments on testing membranes and adhesives on a plexiglas/glass surface? I suspect the manufacturers are only testing on more typical substrates: plywood, concrete, backer-board, drywall, etc. Are there potential issues with curing on a non-porous surface like glass or plexiglass?

I have been delivered the bombshell from my homebuilder that I must build my own shower pan. I've been diligently watching your videos to learn the process. I have a hard time getting a start to finish process. I am building on a slab . Do I have to build a pre and post slope? Is the paint on sealer enough, or do I need to use the pvc membrane between slopes (if both layers are required)?

the more water the lightweight thin set needs the more shrinkage it will have. had a lot of problems with those in europe few years ago

Hey, Thanks for your videos. I hope you see this and can give me some insight. I have been watching pretty every video of yours for the last couple weeks in preparation for a home remodel. First off, Thank you for making me ask questions. Second, What are your thoughts on if you use Hydroban or Ardex 8+9 AND you get a pin hole to the Kerdi... So under normal conditions the Kerdi is suppose to dry out in between uses, but if you have another waterproofer over it, do you think it will trap it in there and prevent it from drying out? causing moisture to build up and then cause fail? Thoughts?

Isaac have you ever used thin set to attach solid surface material for curbs and bench seats? I do a lot of showers that customers want solid surface on the curbs and seats but I’ve been setting them with a glue like liquid nails. Looking for your thoughts and anyone else’s opinion on this.

What about a regular pan liner to waterproof the bottom of the shower? Is it still a good solution?

So are you using cementitious on the Kerdi band between the foam board and the band at the seam? Based off your video of cementitious I thought that it will not cure between the two water proofing membranes?

Technical question that maybe only you could answer: would it be possible to use a waterproof finish plaster coat like Merlex Super Shower directly over Hydro Ban Cementitious? Skipping lath, scratch and browns coat?

Hi Thank you for lots of useful information. We are about to get started with new shower install. Can you comment about using ardex8+9 over Kerdi shower pan for another water proofing layer? I saw couple of your videos. information is little confusing. Laticrite is better over ardex and then here you talk about not using ardex.. Thank you.. Appreciate your timely response as the installer setting up my Kerdi shower pan soon. Also what's your recommended thinnest for the job. Schulter is recommending all-set. Thanks again.

If you have issues with suppliers, then you are not supported by them which sends your integrity through the roof. I like your tests and honest opinions.

Isaac, What is your experience in using hydro-blok? I'm going to build a 3x5 steam shower with a bench. I would love to know and advice you have for me

I've been doing tile a long time and the shluter system has been suspect for me for a long time. Yes it probably is waterproof but not 100% there is no way logically. Just doesn't feel right. Funny I just started using laticrete everyday. If I'm building a shower I do slope preslope and use liquid membrane. Walk in showers I'll build slope and sometimes use kerdi but I will add liquid membrane on the seams. Never had a call back.

Awesome information

Hi, Isaac! I like your cap, can you recommend me a site where I could order the Shlüter cap or something like this that you are wearing

"I'm constantly learning!" "As I learn" "I"ll adapt" The true definition of what an adult should have as their view of life. Especially as a business owner. From one Contractor to another, I say... Good job. I wish more of us had/have that opinion.

Go board is awesome its pretty rigid stuff I use it all the time is easy to work with the only thing is the fiberglass I don't like but its a great product so far from my experience.

What are your thoughts on Arc vinyl shower pan (curb less on wood)

I've used the Laticrete cementious waterproofing and I found it super sticky but hard to smooth out to a feather finish and you gotta work fast.

Thanks I have so many words to use , and if I do, you won’t listen. I am better because: you took the time to confirm that quality control was in fact out of control. Thanks

Brother u keep it real. I'm not even a professional tile guy. I'm a Diesel tech

When doing Ardex 8+9 since Hydroban cementitious isn't available to me on top of a kerdi waterproofing membrane floor pan how many coats would be recommended?

How would I make a water proof seal behind a kitchen backsplash. Mainly the joint where the granite counter top meet the wall board. Will be installing 1/4 in 3x6 subway tiles down to the granite top . I I can get some guidance from anyone it would me much appreciated. Getting ready to start around end of February 2021.

Great informative vids! In one of Isaac's earlier videos he uses Ardex 8+9 instead of unmodified thinset to install Kerdi bands for seams over Kerdi membrane. Does anyone know if you can use Laticrete Hydro Ban Cementitious to install Kerdi band over seams also?

I was going to just use ardex with schluter shower tray on top of wood and schluter. wall and take my chances. Having a wood base will just keep me awake at night wondering when will it fail. Or its better anyways than using schluter tin set?

Awesome knowledge base videos! Could you tell me which shower base is the best to use, would it be schuluter or another brand? If i use the schuluter base do I have to use schluter walls or can I use cement board. If schuluter base is used would you still use the ardex or the HYDRO BAN Cementitious Waterproofing Membrane around the drain, like you did in one of your videos? iF you could reply be awesome as I going to demo in a month.

I'm a tad confused. Have you stopped using Kerdi? Is there something better than Kerdi, or do you still recommend it?

Issac what do you think about wedi boards and pre slope pans ?

You should do a video on how people use to waterproof showers before liners, before hot mops, before Schulter shower kits 😎 How was this done in the old times?

It was funny watching your reaction in that video!

I'm a big fan of Hydro-blok. Try a Go Board vs Hydro-blok mockup and see which is better. Other than schluter profiles or their drains I steer away from their membranes or kerdi board. I never understood why mortar was used for the seams, it's not waterproof. Also the fact that the board was an open cell foam but also extremely soft.

Much Respect for you bruh. Your honesty of these products is one of the main reason I keep coming back. Should people that have used Ardex 8+9 on top of schluter be worried that it's not 7+8 or will it be ok. I just covered mine in 8+9 2-3 coats .

Ive used kerdi for 8 years. Since my sub that did rubber membrane retired. I would love more info on this.

Its pretty funny tile coach. I feel like we are having identical careers on different coasts. I even prefer Uponor aquapex and fittings as well. I've been doing the hybrid kerdi on a mud pan then 8+9 all over since about 2014. I was surprised by the pin hole issue with your 8+9 test. I truly was. Especially because I also feel like expecting a perfect flawless install on any system is a foolishly ridiculous requirement. As though every band and sheet and mortar will be set perfectly. But I am surprised that that's enough for you. As you said before its a redundant method. You would have to have a pinhole leak decently at the point of a seam and then have that stuck through. Not impossible because as you say small dams and birdbaths happen for varieties of reasons as no installer is always perfect and I don't think a shower needs to be submerged for these issues to happen anyway. But the redundancy is enough for me as well as the efficiency of mortar set fabric immediately on a fresh pan then nearly immediate coat of waterproofer. I also can't argue the logic that if the issue was that likely to cause a failure we would see a lot more kerdi failures which we do not. When doing tub surround showers my preference is hydroban, though I'll use any if them, and anti fracture tape. I've been looking for straight roll on shower pans for years but I just can't go there. I would use anti fracture on the entire pan then also on the changes but waiting for the pan to be fully dry is a deal breaker. And it doesn't take much moisture coming from below to break the bond of any painted on membrane. There is a very satisfying tightness to the elastomeric products when they dry but I would feel safer with the k>8+9 than even hydroban with everything taped up.

Hey this is LJ from Coeur d'Alene Idaho love you your videos. We're doing a shooter kerdy foam pan with epoxy walls. Will show you some pictures sometime if you're interested. Is my first that is the epoxy.

Has your laticrete Rep greenlighted the use of hydroban cementitious over the sheet membrane? I have called the technical support and they told me cementitious is not for indoor use. Im using the laticrete lineup for the first time and so far I have been impressed.

good video bro; so many people say Adrex is king but I feel Laticrete is the best of the best; schluter is getting better don't give up on them bro. Wedi is awesome sauce too.

Hey tile coach, I’m almost done remodeling my restroom using your methods.‘ all I need to do is waterproof! I purchased the 8+9 and was planning on applying it this week. I’m super confused now. Can you please give me some advice. Do I use the 8+9 or not? Please let me know ASAP

20. TWENTY! Two-zero Ad breaks in this one hour video. You tube eat it . I'm out...

Good feedback, bonding to drain flanges needs a new standard.

Are you planning to use HYDRO BAN® Cementitious between the overlapping seams and corners of kerdi membrane in addition to over the top of the entire pan?

Have you ever tried permabase foam boards?

I find the diamond hole saws (3/16, 1/4, 5/16, etc) work best for me when drilling through any tile or stone surface. Use a spray bottle with a very weak soap solution, smooth and quick holes with no risk of micro fractures.

HELP After watching all your Schluter videos we have just finished installing the Kerdi Schluter board in our bathroom have placed our Kerdi linear drain and getting ready to put down schluter membrane on the dry pack floor!!! Should we water proof over it all with another product??

So I think at 2" overlap of Kerdi at every seam I thought schluter said that water could only through 1\2" Love your videos

Hey buddy! Yoiu videos are great! Keep up the testing You have to keep in mind that ardex is a system it is not just some mortars an hydro isolations. You can not say that is not working unless you make the test again and use the ardex primer first. Primers are essential for such a jobs . Your videos might be misleading sometimes. Thank you wish you all the best!

What kind of waterproof do you use ? I am going to make a shower and I need to use waterproof, which one do you recommend? Thank you

I had a hot mop done that the hot mopper cut 3 small slots in a Oatley cast iron drain with a grinder metal blade to increase weep. I thought this was clever and wonder why Oatley doesn't incorporate this into their design.

Can u use schluter and hydroban cementitious? Or can you pour self leveler on a liner?

Laticrete makes some good products, and the CS is good. Having good CS is important, when have questions......& yeah, there’s always questions eventually 😉

Issac ! I’m from Florida ! Please help me . I’m doing a bathroom remodeling and I’m using North American adhesives waterproofing! Do you know this product ? I have to install tile on concrete floor! Thanks

Laticrete is just pure 🔥 😎

Can you use other thin-set from laticrete like 4 XLT?

I am a homeowner doing a shower myself. My plumber recommended Schluter and I bought the 72x72 shower pan kit. In highsight I should have waited and done more research. Now I am stuck with the kit and feel I might as well use it. My question is, what is the best laticrete thin-set/water proofer compatible with Schluter products? Thank you so much for your videos and knowledge!

Whats your favorite trowel?

I'm hoping you can respond to my request for the best products to use in the North Carolina region. I'm having to tell my first shower from the ground up. You're honestly about products is very refreshing in this day and age. So before war breaks out, I would like to get this older gentleman's shower done. We may have just a month or two at most before we're locked down. So if you can give me the best products to use from the studs out to a finish product, I know this may be a little lengthy but you can just list the material I would be so appreciative. Keep standing firm and honest!!

Jacob, don't change Bro. You're an honorable and honest MAN. Thanks for always looking out for what's RIGHT. God Bless everything your hands touch.

should use redguard on walls in shower,,if so would oe should use modified rhinset?

I'm suddenly SOooo confused and waiting to find out about the wallboard you experiment with. I was trained with Schluter but only now learning from you about the other board options. On hold with my bathroom until I learn more from you. Hoping to start end of March...hint hint. :) Will look into a T-shirt too. Thanks for all your testing!! Happy New Year - Stay safe.

Brother ! Can I use Proflex hydra-board for shower flooring ?

• Do not use over dynamic expansion joints, structural cracks or cracks with vertical differential movement • Do not use in steam rooms and/or shower floors/pan liners • Install membrane without voids or interruptions • Do not use over cracks • Do not expose to rubber solvents or ketones

So im planning a kerdi shower do you think I should not use the modified thin set they recommend? I should be using Kerdi-Koll or something else?

You gotta show us that video coach.

Hey cuando pongo pen liner en un banco y suelo como atornollo o cada cuanto

looking for a contractor in the LA/Pasadena area for two bathrooms; one shower and one tub projects. please advise