Cool video! 👍🏼 You can also apply the liquid membrane to both sides of the lower cement boards before mounting them to the wall. Apply a good amount on the bottom edge. Prevents water from wicking up the cement boards. Water always wins. We can only slow it down. Every bit of prevention helps.

Thank you for sharing this process. I'm a getting this done and it's good to know exactly what should be done so I will be paying attention and make sure this step gets done. When you pay people to do work for you it is best to know what is going on. Thanks

Just a tip, but when installing the fabric, it’s best to start at the bottom and do the tub flange first. Then the vertical corners, and then the horizontal seams last. Otherwise you have all negative laps which could potentially serve as a funnel for water to enter the wall cavity. Granted you added so much liquid membrane that it shouldn’t ever be a problem, but it’s just best practice to only do positive laps when waterproofing. Good job on the video though. 👍

I would recommend doing a minimum of three coats. These paintable waterproofing membranes double as crack prevention membranes when there are enough layers painted on. Helps reduce transmission of cracks in the cement board to the tile.

So, fiber mesh and thinset for cement board joints ... THEN Redgard and fabric tape for waterproofing. I've watched 100 videos and yours is the first to clear that up. Thx Man!

Liked this video, didn’t know you could waterproof up against the tub flange like that, informative video. Thanks Chuck

I've been looking for a video like this; almost exactly like my set up. Thanks so much

Wow thats what I call waterproofing! Nice work getting ready to upgrade my condo, I am finally buying from my parents been renting for 17 years so much to do. Thanks so much!

Thank you for the video, a couple things on here I did not know that needed done. I have an upcoming bathroom project. I did my other bathroom but did not put a complete tile wall as I am in my 2nd bath. Thanks for the knowledge.

I love your explanations. You make it look easy. Hope it comes together as well for me.

Just found your channel - looking forward to videos on restoration/maintenance of your 150 year old house (as my house is 135 years old with likely the same kind of needs!).

Great video.. perfect for exactly what I needed to see. Thanks

Thank you! Just the video I was looking for.

Semper Fidelis brother! Thanks for sharing your knowledge.

Great video !Very helpful , best one I’ve found thanks

Hi I have watched all your videos and they have been super helpful Thanks!

U explained in a perfect way! 💖💖💖💖👍👍👍👍

Hi I'm a carpenter and tiling my bathroom and your videos have very helpful I trust what you say you are very knowledgeable I'm planning my own bathroom remodel and my wife picked out a tile for the strip that is a little thicker than the glazed subway tiles was hoping you could tell me a way to still use them I did my other shower but thickness was the other way around was able to scim coat with mastic any suggestions

Really great content Bro! Super helpful, & thanks!

The durock system was great and easy to work with

Awesome video! Will construction adhesive applied to Flexstone panels adhere to the waterproofing?

Good video. I used the Mapei product over cement board in a shower 6 years ago. No problems to date. I will be installing a new acrylic bathtub in an alcove and will be using Hardiebacker cement board and want to apply Mapei Aquadefense over the backer. Will any spillage harm the finish of the acrylic tub? Thanks.

Hi and Thank you for your good videos! Quick question I used the waterproofing but the the mortar and the tape created bumps a little everywhere along the seems....is this going to be a problem with tiling?

This is a nice tutorial, thanks! These instructions are for waterproofing the cement board, but I have a tub installation question. The flange for my tub looks very similar to yours. It's fiberglass, with some sort of acrylic or other smooth hard finish coat. The install pamphlet recommended using roofing nails, directly into the studs, at the top edge of the flange, so that the bottom half of the nail head just catches the flange. Nothing actually through the flange. That's how I did it. However, every tub install video I watched shows the guys screwing through the flange, and it looks like you did too. What are the pros & cons of screw-through vs. nail over the edge? Also, if you end up recommending that I pull the nails and screw instead, do you countersink a bit first? I like that your tutorial not only shows WHAT you do, but you talk a bit about WHY you do things a certain way.

Great video! Once you are done and the product has thoroughly dried you can tile right on top of this water proofing product, right? Thank you.

I am watching your tutorials prior to replacing the pan only in a 60 + year old shower. Since all these waterproofing products were not available 60 yeas ago, what has kept this shower from failing until now. As it is, the walls look great with no evidence of leaking, and I am hoping they will look good once I remove the pan.

We have a small part of our shower wall that collapsed. We removed all the tiles and the wet board. Everything around it is dry and solid. We want to use cement board to fix this small area and then apply the new tiles. Is cement board the best to use, what is the best way to waterproof the board? After we waterproof it can we lay the new tiles? Cement board seems a lot cheaper than buying green board which you have to buy in bulk. Love your videos! Thank you

Nice video. What was the brand of membrane fabric that you used?

The music sounds like something from an early final fantasy game. Makes me all nostalgic, lol.

I am also planning to do my shower but that's next year. I was actually looking for what product to use to waterproof exterior cement board for stone installation when I came across your video. You seem to know alot about the different brand products and I heard you mention the Laticrete. It is so expensive. Do you happen to know an alternative I could use for the exterior application over exterior cement board or what is also called permaboard? Any help would be greatly appreciated.

Can Red Guard or the other stuff be used to prevent leaks on a shed made out of Hardie backer board ? I have a couple of small leaks and I was going to try Flex Seal but I figured there must be something stronger.

Great tutorial bit but does the membrane affect the tiling process or will the tiling be done in the usual manner.

Thank You Very Helpful information

How did you seal the water shower spout and mixing valve area?

Very helpful video but do you need to waterproof cement board for FLOOR tiles?

If one imagines no water will EVER be at the very top of the shower tile, that's because one is not the shower cleaner. ;-)

will the tile grout stick if the backerboard is above the tub lip and space behind tile.

Very helpful. Thanks

how long does the aqua membrane take to dry. Reason why asking.. i work for special or mental or handy cap homes and they need bathing nearly everyday do to thier condition.!.If need be afyer aqua membries fully can they use shower for quick wash up ,, tile i can get in and tile?.Also can you put modified thinsett over aqua membrane..?

Would you mud and waterproof the seams if you were gonna use frp?

What do you use to initially fill the cement board screws and taped seams? Is it thinset or drywall compound? - thanks.

Sgt Donovan, I have a question. I am remodeling a bathroom with a marble tile floor. The tile is 1/2 inch thick and has to matchup with existing floor thickness of 1 inch. The USG web site says use 1/4 cement board on floors and 1/2 on walls. Should I use 1/4 exterior grade plywood glued to the subfloor then 1/4 cement board or just use 1/2 cement board under the tile? Thank ou for your advice.

Great Video, now I know the right way to do things! One question:can the blue aqua defense be applied with a roller? I was just thinking that a roller would work faster than a brush.

does this liquid membrane bleed? I plan to tile white subway. Why this feels like over kill? may im wrong.

Could you use a roller to apply the aqua or red guard?

Thank you

Excellent video. Thank you. Question. I'm getting ready to do a shower. I was looking at your shower valve and how far it comes out from the wall or Durock. Does that black plastic square frame around the valve stick out about the thickness of the tile plus the thinset? Thank you.

Now I see why many don’t like hardy backer. Way more work than the paper wire mud float. And you can make a flatter surface.

Why wouldn't a masonry sealer work just as well?It would be a lot faster and can be applied with a garden sprayer.

Thank you Sir.

Thanks for sharing! This stuff stinks so bad especially when you are working in a closed area. I should be using a fan next time circulate the air.

Does Tile and Thinset adhere to this as well as to the cement board?

Read this for a 100% leak proof with well over 100 pans experience. Just use felt paper behind durock, start from bottom up, extending it at least 2" over the liner and each consecutive border, Put the durock over it (prefer to do the dry mortar floor butted against felt for the 1st slope prep for the liner, and butted against the liner instead of the durock for the 2nd pre-tile layer with proper protection (rounded edge tools to not cut up the liner), and durock over felt and over floor mud. Then, you just tape the durock and you are 100% good to go with tile. Also, I watched your other vid. putting the rocks around the drain. Its always a good idea to make a collar with fiberglass tape and put it around the drain threads loosely, so the rocks will not risk falling inside the drain in an event you need to remove the drain prior to tile install for at least 2 reasons it can happen. This will save lots of unnecessary expenses and time. Another trick is to how to efficiently prevent the bottom wall bulging due to the liner folds, without using strips. One way is to chisel out the corners to allow for the liner to be flat, and there is an easier method too but I have only tried it as an experiment 2 times with 100% success will leave it for another comment

This is helpful. I thought the fabric was only needed for larger gaps and not for small seams, but I could be mistaken. Question: Can construction adhesive be applied directly over the aquadefense once it is cured or will it pull it off? I'm putting up a glue-up surround instead of tile. Or should I just put thinset over the aquadefense?

Great videos!!! This is how I build my showers to.

What’s the best way to handle the plumbing penetrations in your method? Caulk, fabric, and liquid membrane? Or buy schluter’s penetration seals and liquid membrane over the seal fabric? I’d like to do schluter but it would be at least 6x the cost if not more, and time is not a factor for me. Thanks for the video

what brand fabric did you use? I cant seem to find it if its the Mapei brand....

Did you use modified or unmodified mortar for the joints?

Have you used the usg durock liquid membrane and if you have, is it any good? Hooah!

hi how thick is the cement sheets great video will help me reno the laundry into 2nd bathroom do i need to do water proofing around toilet area .

What’s up Sarge this is good information

you are using a white mesh in fiber or something, please inform the name of this product as we are unable to find similar item here

So that waterproofing sticks to that silicon? The reason I ask is because I'm a retired sheetmetal worker and my experience is that silicon sticks to everything but not everything sticks to silicon.

Nice work 👍

How does the water drain out from behind the tile, through the grout?

Hi, i am planning to use the same cement board and membrane that you used, what type of mortar do you recommend I use for my ceramic tiles (small tiles, like 3x6)? Great instructional video. Thanks

Schlueter is by far the best product out there!

same procedure for Hardie backer ? thanks .

Does thinset and modified thinset both stick to the waterproofing membrane? I’m using large porcelain tiles.

Thanks

People talk about the cement board holding water and mold forming. What about the thinset it self? Why does the membrane have to be on the cement board? Why can't it be on the green board behind the cement board? If the cement board will hold water, won't the thinset hold water? Seems as long as there's water proofing somewhere between the studs and the thinset, why does the membrane have to be right behind the thinset?

Great video! Thanks for the advice. You could probably reduce the time /time lapses showing progress. This video could be half the length and just as informative!

Does the liquid membrane inhibit mortar adhesion?

Can you use a roller. To apply waterproofing.

Great video thanks for sharing and thanks for sharing the details of the products you are using ......Nova-Fiber 6"X 75' Roll 17.99 in the USA $51.28 here in Canada Some time I drive down to buy products because we are so F*&%$ here .

Can u paint over cbp 232 waterproof membrane?

Does it work?

great video especially about the fabric. One question I have is, do I need to use a special mortar and grout to stick to the membrane?

Can I tile on it after applying the aqua paint

Sgt........................Why do you have to do both, thinset/tape and also hydro ban and fabric?

you are the best man!

I am putting in a tub surround kit. I was planning on using cement board behind the shower wall panels. The shower panels seem pretty waterproof to me. If I do use cement board behind the panels, will I need to seal/waterproof the cement board?

Great job dude. I don't know if you know now or if it is recommended for durock, but you should try diluting the membrane to 1 part membrane and 4 parts water. The cement boards suck up the moisture and leave the membrane to easily peel off the boards.

Great job Amigo👍👍👍👍

Does that product have a strong chemical smell? I have a little girl and i don't want to expose her harmful fumes while i remodel our bathroom. Thanks for your video it was very helpful!

i see lots of people doing this in the UK now . my question is what the hell is water doing behind your finished product. and if you should get a broken silicone seal and get a little engress where does this go as it is now trapped between 2 waterproof membranes

How do you seal up wall niches?

CAN I GET THE FABRIC AT A TILE STORE. I GOT THE WATERPROOFING THAT YOU FIRST MENTIONED, THAT IS YOUR FAVORITE. IDIDN'T KNOW ABOUT THE FABRIC BEFORE THIS VIDEO

Se puede utilizar rodillo....con.brocha es muy.....lento???

one major suggestion, ensure the backer board is even with or extends past the tub lip even if only a tiny bit.

What did you use for filling the joints in the backer board. Great video

I dont know if it's still true, but years ago, you'd take some "red guard", put it in a small bucket, mix with water to a make a thin first coat. without this thinned down first coat, the product would dry and crack. You'd wait hours between coats, and go for three coats, including the watery first coat. Or....back in the day, I'm not sure, it might have been hot tar (not availiable today), and that stuff was one coat and done. The solution no longer availiable, is the one that lasted the longest.

My tub instructions say to build the walls out 1/4 inch so the the cement board overlaps the flange.

SGT Donovan.. what is the correct protection behind the cement or backer board? I see you used roofing paper, some people use plastic sheeting. The argument is the wall breathing to prevent mold. Everyone has their own ideas but everyone cannot be right. (Between the backer/cement boards and the studs.) Isn't the waterproof membrane enough by itself? (or the Kerdie board?

Great video, thanks! So you use fiber mesh tape for the thinset between the cement board joints, AND you use membrane fabric for the aquadefense? So the seams have both fiber tape and membrane fabric--is that correct?

What would you do differently if the tub barely has a lip/flange around the edge? My tub has maybe 1/8 in high lip and I am really nervous about water getting in around this area. Thank!

What was your total time from start to finish to complete waterproofing application?

with the mortar, membrane and waterproofing seal on the seams does it cause uneveness?

Thank you.

Hi Sgt. Donovan, our builder just put in Fiberock Gypsum Board around the tub that has a flange....but he left a gap between the flange and the gypsum board big enough I can put my fingers in it....should I have him redo it? And what is the difference between Cement board and gypsum board? What is the proper way to waterproof gypsum board? I'm very allergic to mold...so it needs to be done right!!!