Absolutely incorrect. Traditional shower pans are built thus: using “dry pack” method, create sloped mortar bed to drain weep holes. waterproof sloped floor using hot asphalt or vinyl pan liner, should extend over curb and up surrounding walls at least 2″ above curb.

Do you need membrane for shower pan?

There is no need to pre-slope the subfloor or install a rubber or metal shower pan liner to the subfloor with this system. The foam shower base simply bonds to the unaltered subfloor with thin-set tiling mortar. Most, but not all of these shower bases require a membrane to be applied over their entire surface.

Do you need a shower pan liner on concrete floor?





You will have to ensure that there is no wax, oil, grease, or soap scum on the face of the concrete slab that could ruin or reduce the bond. After that, I recommend that you install a sloped shower pan to contain the shower water and prevent harmful organisms from becoming resident in the surrounding walls and floor.

What type of concrete do I use to make a shower pan?

The best concrete mix for shower pans is made by Quikrete. They make two products, the first is called Floor Mud, the 2nd is their Sand/Topping mix. Both work great for building a shower pan. Just like other types of concrete mix, there are DIY options.

How do you waterproof a shower pan?


Quote from Youtube video: Anyway i started the waterproofing. Process by getting the shower pan installed i used this foam shower pan system made by prova which i picked up from toolsforflooring.com.

Do you have to waterproof a concrete bathroom floor?

If the bathroom floor is either concrete or compressed fibre cement sheet flooring then there is no requirement for full waterproofing of the floor and the extent of floor waterproofing will depend on whether it has a bath with a shower over it or the shower recess is enclosed with a shower screen.

Can you install tile directly on concrete?





You can install the tile directly on the concrete. You can install a CBU or cement board on the concrete, then the tile on top of that. Finally, you can use an uncoupling membrane between the tile and the concrete.

Do I need to waterproof under shower tray?

If it is a wet room with a tiled floor and no shower tray then yes it needs tanking. In a nutshell, the tanking process is where tape is applied to the corners and joins and a waterproof coating is painted on. It is not always necessary to tank the floor if a shower tray and enclosure are being installed.

What is a shower pan liner used for?

It is something that goes below the tiles and the mortar that forms the floor of the shower pan. It is an additional means to waterproof the bathroom floor and prevent leakages and seepage into the floor and subsequently to the floor beneath the bathroom.

Do you Red Guard shower pan?

Using a direct bonded waterproofing membrane (RedGard is such) on the interior of your shower walls over a traditional shower pan is fine. Do only the walls, not any part of the floor. Read and follow the manufacturer’s instructions carefully, including the part about priming the walls.

Do you need to use RedGard over cement board?



As long as it’s Cement Board & not some crappy “almost” cement board stuff. You really don’t need the RedGard, but the more protection the better…so go for it. And yes, you can do the boards beforehand. But, hit the filled seams & screws (your weak points) as soon as a panel is ready to give it some time to setup.

Can you put RedGard over thinset?

You can install thinset mortar and tile directly onto RedGard. For best results, mix mortar in small batches and apply it to the shower wall a small area at a time. Use a notched tile trowel to spread mortar whenever you are tiling over RedGard.