How To Build a Waterproof Shower using Kerdi-Board

In today's video, I'm showing you how to install Kerdi board, which is a very simple and easy waterproofing technology than any homeowner can install and have total confidence in. Cheers!
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Videos produced by Home Renovision are provided for informational purposes only. All material provided within this website is for informational, educational, & entertainment purposes only. Some of these projects, materials, and techniques may not be appropriate for all ages or skill levels. The DIY instructions used here are used to simply breakdown projects to their simplest steps. Please use a clear mind and use all safety precautions while following the tutorials provided by this site. Home Renovision does not make any claims of the safety of the projects, techniques, or resources listed on this site and will not take responsibility of what you do with the information provided by this site. Viewers must be aware by doing projects on their homes they are doing it at their own risk and Home Renovision cannot be held liable if they cause any damage to their homes. With different codes around the world and constantly changing standards, regulations and rules, it is the sole responsibility of the viewer to educate themselves on their local requirements before undertaking any sort of project. That being said Home Renovision cannot claim liability with all applicable laws, rules, codes and regulations for a project. Be safe, have fun renovating and ALWAYS stay informed with your local building code. HomeRenoVisionDIY may earn an affiliate commission if you purchase something through recommended links. #commissionsearned

[@HomeRenoVisionDIY]

To watch all the videos in this project click this link. kzbin.info/www/bejne/sJq8gpSujrapb5Y And remember with playlists you can scroll through the videos using the arrows in the bottom left corner.

[@isaacsamuel2673]

This guy is one of a kind not only performing all this manual work but also because of the way he clearly explains everything step by step thanks so much.

[@HomeRenoVisionDIY]

Thank you kindly!

[@user-xv8tr5to7j]

Going to dig my hands into building a master bath in our existing bedroom because of him!

[@lisakukla459]

@@user-xv8tr5to7j How'd it go?

[@dianeduceymusic4547]

I've seen this fellow in a couple other videos, and he presents information clearly and in a relaxed manner. Builds confidence. Thanks!

[@405awhp]

Just found your channel a week ago and I'm very impressed to say the least. I'm just amazed with how well you can get your knowledge across to the average Joe, you're just a natural at this, and great content too. Thanks from New Brunswick!

[@HomeRenoVisionDIY]

Thanks for joining us, Cheers to New Brunswick!

[@terrylee5659]

omg, I'm hooked on these videos! I've never done any type of renovation but I'm fascinated by this entire process because Jeff makes everything look so easy (even though I'm pretty sure it's not) but that.'s because Jeff obviously knows exactly what he's doing. Thanks Jeff!

[@ihatecivicssomuch]

I think I've binged almost all of your videos. Incredibly useful and well taught. That whole reverse the screw instead of predrilling was life changing.

[@HomeRenoVisionDIY]

Thank you Germain, glad to be of help!

[@johanhansen9735]

I love how you always give examples of alternate ways of doing things 👌👌

[@HomeRenoVisionDIY]

I know PITA won't like this but there is more than one way to skin a cat!

[@victorbetancourt9224]

God bless you god blessed your day & your family with this video I can proof one of my friend different way he wants to do thanks so much

[@NOne-yt1tj]

Love your channel! Wondering what you do around the lip of the tub where the kerdi sits. I have my board installed but get differing opinion on how to proceed from here. One channel recommended using unmodified cement and kerdi band to create an overlap across the base of the kerdi board and the lip of the tub. Any thoughts on this?

[@christopherlu4207]

One of the best, super useful information, save me lots of time! Great video like always.

[@HomeRenoVisionDIY]

Glad to hear we can help. Cheers!

[@rawlsawh2804]

awesome work. it's simple. is informative. thank you for your work.

[@HomeRenoVisionDIY]

Our pleasure. Cheers!

[@samscott54]

thx for your down to earth and realistic approach and explanation -

[@Dingle1234]

I love this system! Think I can do this with only a plumber, even as a single gal. I know this is an old video, but I want to ask: my walls seem to have no sign of mold at all. Even the old pink insulation I removed looks almost pristine. There's just a bit of mildew behind the tar paper and I wonder what to replace the tar paper with, especially on the two exterior walls (brick on frame construction).

[@sorrythanks666]

Awesome video. Can't wait to start using Kerdi Board

[@NYOrbital]

Yet another fantastic video, Jeff. Thanks for all your do. Keep up the awesome and inspiring work.

[@HomeRenoVisionDIY]

Thank you Steven, we plan on doing exactly that!

[@andrewjordan5662]

great video ...Learned a lot...You a brave guy with that knife cutting right against the fiberglass tub surface...

[@bronxbirdman21]

Another great video from JEFF the Ultimate Warrior!!

[@HomeRenoVisionDIY]

OOOoooooh Yeaaahhhhhhhhhh

[@HomeRenoVisionDIY]

LOL

[@G0dyo]

You make great videos. Thank you so much

[@lucasjones633]

Thanks for the video always get a lot of knowledge from your channel

[@HomeRenoVisionDIY]

Happy to share Lucas, Cheers!

[@KaioStryker]

Awesome man, thanks for all your videos.

[@HomeRenoVisionDIY]

Cheers Patrick, thanks for watching and commenting.

[@robinlee7485]

Thanks for the video. Would it be acceptable to run a strip around the whole tub flange instead of caulking it?

[@kevinmclauchlan5904]

Thanks for all the explicit instruction. I'm at the stage of having all the Kerdi-board installed and the majority of screw/washers waterproofed with 2-in-1. About to thinset (Kerabond T) the Kerdi band on the seams. (BTW I asked you to clarify a remark you made in a response to Josh .... like 9 months ago, but I saw it just now and elaborated my confusion about Kerdi-band overlapping bottom of Kerdi-board and the flange it abuts... if you would be so kind, after you set me straight on this current question, that I'm about to get to) Anyway, I will have my 12-inch-by-24-inch porcelain tiles overlapping the bottom of the Kerdi board and hiding the tub/shower-pan flange by about an inch. So, should I shove some 2-in-1 into the bottom of the gap where the tiles will almost touch the tub/shower pan deck? AND, if I do that, should I leave some weeping hole gaps in the bead of 2-in-1? This was advised by another DIY video guy (ahem! coff-coff-floor elf coff-coff... not mentioning any names). He sez the Kerdi or other waterproofing behind the tiles is definitely water-proof, but the tile layer (notably grout) won't be totally waterproof, so any moisture that gets through and is trapped back there has an opportunity to exit via the weep holes. Sounds fishy when you have all that thinset in there, but I thought I'd ask. Thanks for your excellent teaching videos. Contractors everywhere are going to lose a lot of business correcting home-owner mistakes that might not happen, now. :-)

[@HomeRenoVisionDIY]

I suggest using kerdi band to the tub and then tile. trim off the excess after the tile is installed. cheers!

[@vinces8974]

You are the man Jeff

[@robinbriggs1517]

You are better than any of the DIY shows on cable. I love that I have found your channel.... Next nasty weather I am going to binge watch you!

[@HomeRenoVisionDIY]

Are there actually any DIY shows on cable, I haven't seen any!

[@robinbriggs1517]

I haven't seen many on cable either as we got rid of cable in 2005 @@HomeRenoVisionDIY

[@Gehlleny]

I love your videos! Short ones or long ones, they are always informative and show a beautiful finished product! I just wish you were closer (Connecticut) so I could hire you!!!!!!!!!!

[@HomeRenoVisionDIY]

Thank you, very kind. Cheers!

[@lagg-alot8308]

Awesome. I will use the Kerdi boards when I do my shower.

[@HomeRenoVisionDIY]

It is a great system that you will love I am sure. Cheers!

[@arlingtonburlington]

Perfect nobody explained stuff like you do thank you

[@HomeRenoVisionDIY]

Glad to help. Cheers!

[@skahatoad]

Hi Jeff. great stuff. I like the kerdi system of membrane and thinset for waterproofing. Can I use the same technique on wedi boards? I like membrane and thinset better than using 100 tubes of wedi goo on each job. thinset and membrane seems like it would last longer too. I know they each recommend their own way, but I like the combo idea

[@simdog635]

Another informative video, thanks Jeff

[@HomeRenoVisionDIY]

Thank you Steve, Cheers!

[@bennisim7949]

You are a good man! How do you build the shower pan for walk in shower any videos you would recommend ? Thanks

[@SyberPrepper]

Great, great video. Thanks for all the tips. Fantastic.

[@HomeRenoVisionDIY]

Glad to help, Cheers!

[@Troupster]

Jeff is by far my favorite Schluterer 👷

[@HomeRenoVisionDIY]

LOl, Always good for a laugh my friend. Cheers to you!

[@VirtuousBeautySalon]

I was wondering if you could please do a video showing the best way to remove old texture from drywall without damaging the wall!

[@RyanKaup]

This gave me confidence to do my own shower.

[@ShooterMedic1818]

How did it go?

[@vethisgames6155]

Need to install this within a day or 2 and I can't get the gasket for the valve locally, is there another way I can seal with with silicone or something? Thanks!

[@ChristopherLuth1974]

you should see that hardwood floor you helped me build. It turned out perfect (with your help.)

[@HomeRenoVisionDIY]

glad to hear it. please send us pictures. [e-mail] Cheers!

[@jacksoldier4686]

You are great, Jeff. Great video. Thank you

[@HomeRenoVisionDIY]

Thanks Jack, can you believe some guy just called me a hack for doing this. LOL the internet is crazy sometimes. Cheers!

[@jacksoldier4686]

@@HomeRenoVisionDIY LOL. Dont worry and keep posting videos. Your skills are amazing. I have learnt a lot of things from your videos. THANK YOU VERY MUCH

[@zachhefton3451]

Do you have to use the membrane on the ceiling seams as well?

[@DennisMathias]

Interesting stuff! Any insulation quality? Any fire rating? Was thinking about a quick garage finish. Just not a fan of drywall.

[@kelseyingoldsby1620]

Would this method be effective for a prefab shower base? We are doing a rental and don't want the hassle of cleaning a tile base but this system has been highly recommended to us and we'd like to use it for the walls. Thanks!

[@perryellie6566]

Hi Jeff, You do fantastic videos. I am installing Schluter for the first time. I live in Florida and want to place the Schluter board on an exterior concrete block wall that is built out with 5/8" furring strips. A vapor barrier is not needed here. How do I attach to the furring strips with 1/2" Schluter board. It only creates a thickness of 1 1/8" and it called for 1 5/8" screws, plus some pull in to cover them with thinset. If I build out the furring it will not match the drywall thickness on the adjoining wall that is only separated by a glass shower wall. This block wall also has the 1/2" copper supply. So bottomline, I am not sure what to do to install the Schluter board on this block wall? The other two shower walls are framed, so no concerns with them.

[@sylvainchenevert]

Thank you very much,hope you can comes here to fix it a new washroom.🙂🙂

[@TheGibby13]

Was too short! Flew right by!! Great video as always :)

[@HomeRenoVisionDIY]

Sorry Gilbert, perhaps I should have been telling war stories from the contracting days !! Cheers!

[@Team118118]

First off I would like to say thanks for all your videos, I've learned so much from watching them. I am in the middle of a bathroom renovation in which I am going to use the Kerdi board. I have read several articles in forums online that state that having a vapor barrier behind this waterproof system as it can create a "moisture sandwich" and is not recommended, if possible could you please advise me of the pros or cons to having the vapor barrier as I was unable to find the answer on the companies website. Thanks and keep up with the great videos.

[@getanadeinthere]

Yes I came here looking for this answer too!

[@jzappavigna]

Thanks for the video! What about the joint between the kerdi board and Sheetrock? What is recommended? Schluter thinset or regular plaster? The joint is around 8 inches from the shower. Thx

[@TashaRogers]

Hi, can you explain what to do with the gap from the ceiling to the call? You put it in lose to have it fit better, but I'm unsure of the next step to fill it. Did you use the caulk there?

[@tomkluck5261]

In this video you use Lepage 2 n 1 Sealant adhesive. Can't get that in US. Would you know if Loctite PL Heavy Duty Sealant or other Loctite product could be used instead?

[@morie20]

Hi Jeff, I have questions. Trying to building a steam shower which water proofing system do you recommend? (Shower is a master bathroom and on the second of the house) cement board? kerdi membrane? Kerdi board?

[@freebiemx1094]

Love you dude. Thanks! :)

[@xraydelta100]

Another fine video. Thanks.

[@HomeRenoVisionDIY]

Thanks "X" glad to hear you enjoyed it. Cheers!

[@tannerronka9504]

how does the thin-set bond to the caulking if you use it to cover the screws?

[@loichockey1]

@Home RenoVision DIY how to you join the kerdi board and the gypse that's outside of the shower. In my case I have a glass wall so my kerdi goes just past it but then how do I joint the kerdi to drywall besides it? Thanks

[@natashachristman]

If I have Kerdi fix should I use that where the Kerdi board and drywall meet? (I see in your video you used that other caulk.) Would I then sand it before I tile or paint?

[@hugheshomeimprovementssp4055]

How did you make up the corner at the Kerdi board and the sheetrock on the ceiling?

[@akquicksilver]

Man you make great instructional videos. This was a very good one!

[@HomeRenoVisionDIY]

Thank you JB

[@JuliaFerry]

I have some overhang from the .25" Kerdi board and my tub tile flang. Can I run Kerdi board over the tub flange, leaving a small gap to seal with Kerdi Fix to the tub? so in other words the studs and tile flang on 2 of the tub sides are pretty close, closer than the thickness of the Kerdi board. Or do I need to shave down my stud walls so the Kerdiboard rests above the tub tile overlay and it's flush between the two?

[@Ilove4U2sing2]

Do you have a video of installing the surround over the kurdi board?

[@rbazley7277]

Great informative video. We are renovating our ensuite. and installing a shower. I really like the Schluter system but they don't supply a 60" x 36" base. Im tossed what we are going to do for a shower base. What do you recommend doing?

[@edmacdermid9815]

I just bought on today

[@khereti]

I've patched the large shower wall with Kerdi-Board. The other 2 walls are plaster, which I was going to use Eco Prim Grip on (also wanted to use Aquadefense). I'm having a hard time figuring out what mortar to use for the ceramic tile. Can I use Schluter All-Set on both, for everything? I thought I saw one of your videos that showed Schluter is now offering modified mortar that can be used on it's Kerdi. Is that it? Was that a dream? Which Mapei/Schluter mortar(s) should I get? Thank you!

[@davidanderson607]

Can you put a Kerdi-Shower Pan directly on a concrete floor? If so, what do you use to bond it to the floor?

[@SuperJaguar7777]

Good job lake always good information about the products tk brother 🎼🎶🎺👍

[@HomeRenoVisionDIY]

Thank you Ramon, Have you ever had opportunity to work with something like this before? Cheers!

[@allenkowalchuk8152]

Is kerdi-board recomended for steam/shower installation and can kerdi-board be used on the floor as well??

[@sweetest173]

Another great informative video. Happy Turkey day🍻🍗

[@HomeRenoVisionDIY]

Thanks , we already had our Thanksgiving up here in Canada. Happy Thanksgiving to all our American friends.

[@bethaniecoggins2779]

If I'm using a prefabricated shower pan with this system would I butt it up the way you did or I stall in front of the lip butting up to the shower base ledge?

[@chrismoore43]

Awesome and easy to follow along videos. Do you have videos on shower pans? Thanks again and keep up the good work!!

[@HomeRenoVisionDIY]

coming soon. Cheers!

[@Cgibsonsmith]

Once the kerdi board is in place do you just glue the tiles on? My tub/shower has plastic tiles that fell off and a hole at the faucet. I'm trying to get down to the studs to put up the kerdi board then re attach the tiles.

[@brendanroach6504]

Hey Jeff, is there anything special you have to do at the outside border where the Kerdi board meets the drywall of the bathroom wall? Great video thanks a lot.

[@thomasnorthcastle4130]

I always run my Kerdi flush with my drywall. I make my Kerdi short at least by 2”. I tape the joint with Kerdi Band from the ceiling down to the floor. The reason I do this is so that the tile actually starts on the Kerdi banded drywall and bridges onto the Kerdi Board. I also use Schluter profile strips on the edge of the tile.

[@lcook0825]

Great video.

[@HomeRenoVisionDIY]

Thank you very much Larry, Cheers my friend!

[@StarrTile]

*Excellent teacher.... I'm not even a fan of Schluter Kerdi, but you made me want to go out and buy some, were it not for the cost😕*

[@HomeRenoVisionDIY]

Wait until I show you the versatility when it comes to customizing shower features. You will fall in love.

[@krehbein]

StarrTile I prefer usgs foam board and goboard since they’re very similar but cost less.

[@philipmurad]

Awesome video!! Will epoxy work on this?

[@mikecardenas8321]

Love the channel. Shower tear down as we speak due to your videos. Quick question. What is the best waterproof way to mount a shower door to a kerdi curb? Should I put backer board over it to give the rail something to screw into?

[@kennyackerman5528]

Schluter makes curbs for bonding to their pans and you use kerdi band to bond it

[@hightower2537]

Mapei "Uncoupling Membrane Mortar" right stuff to apply kerdi band to the board?

[@thewolf3530]

like always great job

[@HomeRenoVisionDIY]

Thanks Jerry, great to hear from you again. Cheers!

[@MohSheir]

Can put kerdi board above tap's tung or behind it as show in the video?

[@tanyapetaliklake6772]

Hi! Love your videos! I have 2 questions. 1) If your Kerdi board extends past the area you want to tile, are you able to paint over the Kerdi Board? and 2) do you use the edging when tiling the curb or do you just grout the edges? Thank you!!

[@kennyackerman5528]

You use silicone or schluter profiles on the edges and no, kerdi can't be painted

[@CrazyTrain7073]

I bought Kerdi Board to do my shower. Lowes and Rona now sell the Kerdi-Fix

[@HomeRenoVisionDIY]

I guess they looked bad not carrying it. I will look again in my stores to see. Cheers!

[@RAWbmx1]

Would you put this on an exterior basement block wall

[@philkienle8360]

I love your videos! You mentioned using non-modified cement on the kerdi board along with the kerdi tape. I am planning to use Mapei Ultraflex Large Format Tile Mortar with Polymer to mount our tiles. Can I use this same material for the kerdi tape (i.e. would this be considered an non-modified cement)? If not, what material would you recommend? Thanks in advance.

[@kennyackerman5528]

Only all set[modified] or set[unmodified] will work

[@stephanmarchal839]

love this contractor..

[@Ktreilly99]

I have a large window at my tub. I want to convert the tub to a large tiled shower. Is there any reason I couldn't use the Kerdi board and Schluter's other materials to complete the job?

[@shadowcats]

I'm renovating all three baths in my house this Spring (one bath and two showers). I'm definitely going to go with this system for all three/ It sounds like I will need corner membranes and bedpans for the showers though - I'm a little worried about cost... You had some nice price estimates in this video on the wall boards and 4" membranes - in your experience, are the corner membranes and bedpans overpriced, or are there creative alternatives? Much thanks for this video from your friendly neighbors to the south!

[@HomeRenoVisionDIY]

You could always go with cement board and redgaurd if cost is an issue.

[@Wharris1985]

I can now buy kerdi fix from Lowes. Can I use kerdi fix between all gaps in the kerdi board or should I use the mortar and kerdi band still?

[@VirtuousBeautySalon]

Hi.. i found your channel and i am a hairstylist but i LOVE your channel. You make me feel like i can do this stuff myself...lol

[@HomeRenoVisionDIY]

Thanks for watching.!

[@amandamoorhouse7378]

I know the US can't get the sealant you are recommending here. Can you add to your shop and/or recommend a good Very LOW VOC alternative PLEASE as I'm dying from the vinegar stench - Cheers. BTW I LOVE that I can go back and revisit all your videos and you put me back on track in my planning ie, niche and sizing to the grout line ;)

[@robertpalkovits4899]

Lowes now has Kerdi-Fix. $29/tube! Expensive!

[@krismolleke]

8:40, usually the moment when i realise that i cut the holes counting from the wrong side of the board :D

[@banditos2051]

Hey great video I was going to use the thinset to cover the screws and washers but the retailer told me I could fill the screw holes with kerdi fix and glue the kerdi band to cover it up. It is my first time using kerdi and first time installing a shower. Is it ok to use kerdi fix instead of the thinset. I really hope my kerdi band doesn't peel off the wall.

[@yevgenikovelman3306]

KerdiFix is way too expensive to do that compared to thinset

[@Aepek]

Schluter products might be a tad pricey, but done right; they are made to last & rather spend little extra at beginning, then having to repair or redo the shower in next 5-7 yrs! Really like the Kerdi products & the ease of use(once ya know what doin'), just wish was easier to buy the schluter no sag easy bond cement & "caulking" at the local box stores. One would think, they sell the other products, so why not that stuff.....?? Love these vids, just wish longer & more😉 Cheers, A Not sure if have done, but think seeing a vid on repair & fixing(regrouting) a shower etc...would be pretty interesting. Just to see your take(tips & tricks); cuz always love learning new ways etc...😊

[@HomeRenoVisionDIY]

Thanks for that I will tackle that on my next shower remodel. Cheers.

[@madcowusa4277]

I like your product substitution mentality. Was just contemplating the seemingly overpriced $30 Kerdi trowel and $30 Kerdi Fix. Lowes tile guy said he has to fight to keep kerdi board available and they will not let him stock Kerdi Fix for some reason. I've had to cobble my kerdi shower system together from various suppliers and online as neither HD or Lowes carry everything needed. Why sell the freaking boards and fabric but not the All Set, trowel and kerdi fix? Good video.

[@HomeRenoVisionDIY]

I am currently in discussion with Schluter to make everything available. wish me luck!

[@tomf2013]

Great video, the Lepage 2 in 1 sealant doesn't appear to be available in the US. I do see a Loctite 2 in 1 product, is it the same thing? Thanks!

[@PepiSchmeichel]

I have the same situation

[@1365Cobra]

Late to the party, as usual. What do you do to seal the board at the ceiling joint? Thanks!

[@ZeviM]

Can you install on on the floor direct on the plywood?

[@seanmckeown9324]

Great video, thanks! Question: I have the Schluter shower kit, but bought the Laticrete Hydra Ban boards to use for the walls. They had them at my tile place, and it was a lot cheaper than the Kerdi board at Floor and Decor. Can I use the Schluter fasteners (with washers), and the Kerdi band waterproofing technique (with unmodified thinset) on the Hydra Ban board just the same? I would think the material is the same (polyethylene).

[@HomeRenoVisionDIY]

sounds plausible, but why are you experimenting on your house. You will have no warranty if you blend the systems.

[@kennyackerman5528]

The hydro ban does not bond to the waterproofing band of schluter and it will leak

[@priteshpatel411]

From tests I have seen, Allset thinset does not waterproof and fails many tests, you have to use Ardex 8+9 or something to waterproof. Have you considered that to be an issue?

[@imdegrafic]

Thank you! Would you also show how to waterproof shower FLOOR? e.g. hydroban.

[@HomeRenoVisionDIY]

Hi Samir, I use kerdi pre sloped shower pans that already have the membrane on them. all I do is use the kerdi band to seal the floor to the wall. and done. Cheers!

[@augustobarros5517]

Very good, thanks

[@HomeRenoVisionDIY]

Thank you Augusto, Cheers my man!

[@robertevenden3203]

The valve my client selected does NOT fit into the provided 4 1/2” guard. How do I seal the opening before putting on the trim cover?? It’s my first time with schluter. Thanks

[@HomeRenoVisionDIY]

Hi Robert. The reason that guard does not fit is simple. Most quality valve companies have a face plate that is snapped into place against another fixed plate that is screwed to the valve and comes with a gasket that sits against the tile to keep the water out. In this situation the schluter guard is not necessary! The guard you are referring to is designed to deflect water that gets behind the face plate of the cheap valves covers that have poorly designed gaskets and /or face plate screws like moen and delta.

[@bc8474]

Can you use this board on the floor as well?

[@hoxha34]

what do you do to transition from kerdi board to sheetrock especially at a corner. thanks

[@kennyackerman5528]

You tile over the seam onto the sheetrock slightly

[@rickcervantes6913]

I had to fur out the wall in the bath and my kerdi board now sticks out past the bathtub flange. Is it ok to go down to the bathtub base with the kerdi board leaving a gap between the board and the bathtub and then filling with kerdi fix?