Wedi Shower Systems: 5 Reasons to Use Them

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by Jeff Patterson in How to Build a Shower
Wedi Shower Systems 5 Reasons to Use

This wedi shower system review is by Steve, who’s been using wedi for over 10 years.

He shares why the wedi shower system is his preferred method for waterproofing showers. And why you should consider it for your own project.

Let’s dive in.

wedi Shower System Review (Why?)

Many people ask us what waterproofing system we like best for showers.

The answer really depends on the type of shower being built.

But one thing is for sure:

We always consider wedi shower systems!

It boils down to 5 reasons and Steve shares those in this video


Reason #1: Custom Shower Pan

All wedi shower systems come with a pre-sloped shower pan.

Each pan can be cut down but still retain the ability to drain properly.

For example, if your shower pan needs to be cut down a few inches to accommodate the a shower bench, that’s no problem.

Pre-sloped shower pans eliminate puddling in the shower. Puddling can lead to mold and mildew.

Wedi shower pans can be cut with a circular saw and utility knife.


Reason #2: wedi Shower Pans are Fully Waterproof

Wedi shower pans are waterproof even if the topmost cementicious layer is punctured.

Unfortunately a shower pan can be accidentally cut.  Tools or tiles can be dropped on pans. And if this goes unnoticed the waterproofed layer is compromised on most pans.

Here’s the deal:

This isn’t the case with wedi shower pans. As long as the puncture doesn’t go the entire way through the pan it remains waterproof.

When someone is tiling a shower, it’s easy to accidentally puncture the shower pan or wall. This mistake isn’t a big deal with wedi.


Reason #3: wedi is Fast

Mud pans are no doubt way cheaper than wedi.

HOWEVER, they take 2-3 times longer to install.

And run the risk of puddling if done improperly.

Typically it takes Steve 1 day to tear out the old shower and install the new wedi shower system. That’s not bad.

And the next day he can start tiling. Whether it’s the wedi Fundo Primo or wedi Fundo Ligno, both sytems are quick to install.


Reason #4: wedi Drain Assembly is EASY!

Wedi drain connections are a washer that locks a rubber gasket around a 2″ pipe.

As long as you run a 2″ pipe up from the subfloor or slab, you’ll be able to connect the drain kit.

Furthermore, a plumber can install the 2″ pipe and have it sticking up from the floor. This simplifies the drain installation.

Then either a DIYer or contractor could then make the pipe to wedi drain kit connection.

Yes, it’s that easy.


Reason #5: wedi is Easy to Cut and Dustless

Cement backer board is a pain to cut and creates a lot of dust.

wedi backer boards are easy to cut with a utility knife.

There’s very little dust. And boards can be scribe cut agains ceilings or adjacent drywall.

A shower system that’s easy to cut is a big deal and makes building a shower easy.


What’s Next

Hopefully this quick wedi shower system review helped.

Wedi can be used to waterproof a tub shower surround, curbed shower, or curbless walk-in shower.

Grab our free guide if you’re doing a DIY bathroom remodel – it shares how to remodel a bathroom in 10 days or less

Get Our Guide


Thanks as always for reading, watching, and being part of our awesome community.


Jeff Patterson





P.S. If you’re doing a DIY bathroom remodel in 2018 check out Bathroom Repair Tutor, you won’t be disappointed with the videos and one-on-one support.

P.P.S. Our online store has a ton of supplies for homeowners doing a bathroom remodel. You’ll find wedi shower systems, KBRS shower pans, tiling tools, and more.

  1. Jeff says:

    Can you or Steve give me pointers on how to repair sagging floor joists under my soon to be remodeled bathroom on my 1905 old house? Jeff, Ohio

    1. Jeff Patterson says:

      Thanks Jeff for asking. One of the biggest reasons for sagging joists is them being cut for plumbing. You’ll want to inspect them for large holes or cutouts. Consult a structural engineer if you’re unsure of the safety. One method for fixing sagging joists is to sister new 2x material to them, e.g. 2×8, 2×10, etc. Apply Liquid Nails to the new joists and screw them to the old ones. But again, be safe while doing this project.

      1. Jeff says:

        Jeff structural engineers sound expensive is there a cheaper option like a carpenter or something?

        1. A good contractor will be able to help, but it’s hard to say without seeing the problem. Contact a contractor with this type of experience, that would be a good place to start.

  2. Ray Ferri says:

    We are planning to build a walk in shower where there used to be a tiled tub shower. Everything is ripped out down to the studs and subfloor. It is as a 41″ x 60″ 3 walled space opening into the main bath. The back wall is an exterior wall which I have insulated and placed a 6 mil vapor barrier.
    I have looked at the different systems on your tutorials. I like the KBRS basins with a curb and the Wedi waterproof wall kits. Can these be used together and if so how are the two sealed at the shower pan level? Do you like this combination or would you recommend the Wedi shower pan systems? They looked harder to install than the KBRS.
    If I used the KBRS pans and the Wedi board I understand I would need to place 1/4″ firing strips on the studs. If I do this there will be an air space between the Wedi board and my insulation and vapor barrier. Is that OK?
    This is my first time doing something like this so I need all the help I can get.
    Thanks. I really enjoy your tutorials they are easy to follow and understand.

    1. Jeff Patterson says:

      Great questions Ray. Both KBRS and wedi are fantastic options. Both systems require the subfloor to be as level as possible.

      You’re correct about the air gap but that shouldn’t be an issue. The primary concern is the rate of vapor infiltration versus the rate of evaporation. As long as the rate of water vapor evaporation is greater than that of infiltration there should be no issues inside the wall. Plus wedi backer boards have R-Value due to the foam construction. This in turn will help keep walls insulated better versus cement board installation.

      You could use wedi backer boards with KBRS’ pans. Apply a bead of wedi joint sealant along the inside perimeter of the KBRS pan and set the wedi panel in it. Then apply another bead of wedi joint sealant between the panel and pan for additional waterproofing.

  3. Tcapelli says:

    We installed a wedi system and our contractor did a fairly bad tile job and some are not even, sticking out etc. Can it be retiled or will we have to stripped it back down and replaced the wedi boards to correct? There are about 5,24″ tiles on a wall that need to be replaced.We are obviously getting another contractor to correct the problem. Thanks

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