QA

Quick Answer: How To Install Kerdi Shower Pan

Which Thinset for KERDI shower pan?

Schluter SET™, ALL-SET™, FAST-SET™ or an unmodified thin-set mortar must be used to construct all KERDI seams to ensure watertightperformance of the system.

Can I cut a KERDI shower pan?

Yes. The KERDI-SHOWER- T/-TS/-TT trays can be cut to size to fit various applications. Ideally, the tray should be cut by equal amounts on all four sides to ensure a consistent height of the first course of wall tile. However, slight differences can typically be made up with thin-set mortar when setting the floor tile.

What happens if you use modified thinset on KERDI?

Modified thinset mortars aren’t recommended for use with Kerdi because they must dry out to gain strength, whereas the membrane inhibits drying, which can lead to unpredictable results. Schluter’s recommendation is to use unmodified thinset mortar when installing Kerdi over most shower substrates.

What size notched trowel for KERDI shower pan?

A 1/4″ x 3/16″ (6 mm x 5 mm) V-notched trowel or the Schluter™-KERDI-TROWEL is recommended.

How long should Kerdi dry before tiling?

Wait 24 hours after the membrane (i.e., Schluter®-KERDI-BAND and Schluter®-KERDI) installation is complete to allow for the final set of the mortar and to ensure waterproof performance of the assembly at seams and connections before water testing.

How thick is a Kerdi shower pan?

The KERDI-SHOWER-LTS is a prefabricated shower tray designed to accommodate the KERDI-LINE linear drain along the perimeter of the shower. The shower tray, available in a range of sizes with thicknesses from 1-21/32″ (42 mm) to 2-3/8″ (60 mm), eliminates the need for a mortar bed, and is easy to install.

What sizes do Schluter shower pans come in?

The trays are available in 39″ x 39″ (100 cm x 100 cm), 55″ x 55″ (140 cm x 140 cm), 48” x 48” (122 cm x 122 cm), 36” x 72” (91 cm x 183 cm), 38” x 76” (97 cm x 193 cm) and 36” x 55” (91 cm x 140 cm) sizes.

Is Kerdi shower pan sloped?

Schluter®-KERDI-SHOWER-T/-TS/-TT are prefabricated sloped shower trays with integrated KERDI waterproofing that eliminate the need for a mortar bed.

Can you use cement board with Kerdi shower pan?

Yes,Kerdi can be installed on drywall or cement board. The back side of the drywall fails and it is just as bad or worse than if it had an issue on the tile side. All shower/tub areas should have concrete board (I prefer hardiboard).

Why does KERDI require unmodified thinset?

Portland cement-based unmodified thin-set mortars are dependent on the presence of moisture for hydration in order to gain strength. Since KERDI is impervious, it does not deprive the mortar of its moisture. This allows the cement to properly hydrate, resulting in a strong, dense bond coat.

Can you use modified thinset under KERDI membrane?

In general, modified thin-set mortar is not recommended to set ceramic and stone tile, including large format tiles, over the KERDI membrane. Modified thin-set mortars must dry for the polymers to coalesce and form a hard film in order to gain strength.

Can you put KERDI over drywall?

Yes. Once you install KERDI over the drywall panels, they will be completely protected from the water and vapor in your tiled shower.

Is Schluter all set waterproof?

Schluter®-Systems offers a variety of systems for tile installation, including uncoupling and waterproofing membranes, shower systems, and building panels. It is sag-resistant and ideal for setting tile on both horizontal and vertical surfaces.

What is unmodified cement?

In general, unmodified thin-set mortar is a blend of Portland cement, sand, and water retention agents that is mixed with water by the user. 1 when mixed with water). Unmodified thin-set mortar may also be referred to as dry-set mortar by the manufacturer.

What sizes does Kerdi board come in?

With the available panel thicknesses of 3/16″, 3/8″, 1/2″, 5/8″, 3/4″, 1″, 1-1/2″, and 2″ (5, 9, 12.5, 15, 19, 25, 38, and 50 mm), KERDI-BOARD allows the installer to prepare and create a broad range of substrates and building elements for the installation of ceramic and natural stone tile that are flat, level, plumb,.

How long does it take to install a Schluter Shower System?

Also, it took me 6 hours to install the system. I decided to cut out my pieces first and this was easily done using a tape measure and scissors. Next, I mixed the mortar. TIP: Make sure you are using the correct type of mortar: unmodified thin-set mortar ANSI A118.

Can you tile over Ditra right away?

Once DITRA has been installed on the substrate, tile can be installed right away. No need to wait for the mortar to cure.

Can you tile over wet Kerdi membrane?

How long do I have to wait before I can install tile on the Schluter™-KERDI membrane? Once the KERDI membrane, including seams, corners and protrusions have been completely bonded and, therefore, waterproofed, the assembly is ready to be tiled. No wait time is required.

Can I use KERDI board on shower floor?

With the KERDI-SHOWER-TT thin shower tray on a wood subfloor, you can build up the rest of the bathroom floor by installing either a 5/8″ or 3/4″ plywood/OSB panel on top of the wood subfloor along with DITRA or another Schluter®-Systems uncoupling membrane.

What is the slope of a Schluter shower pan?

Answer: 10″ to center of drain in the 60″ direction and centered (16″) in the 32″ direction.