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Using the Schluter Shower System

Preventing Pipes From Freezing - A Concord Carpenter

Utilizing the Schluter Bathe System

By Robert Robillard on Loos

Waterproofing a Bathe With the Schluter System

What Shoppers Actually Assume About

When transforming a bathe, an important factor to think about is waterproofing. Sadly, many individuals do it flawed or minimize corners. Everyone knows numerous bathe pan and waterproofing horror tales. Leaks and call-backs take time, value you cash, and can harm your organization popularity.

Whereas shoppers ask loads of questions throughout a toilet rework, one which by no means appears to return up is correctly waterproofing the bathe.  Perhaps they don’t perceive the method — or perhaps they only belief us to construct and set up our techniques based on business greatest practices.

However loos the truth is which might be botched greater than some other room in the home. The shoppers I do know spend an excessive amount of money and time on ornamental options and fixtures, and never sufficient thought or cash on waterproofing their bathe, which impacts the general high quality and longevity.

Efficient Bathe Waterproofing

Efficient bathe waterproofing strategies exist. I like to recommend putting in an entire bathe system that features a drain. When correctly put in, these techniques create a 100% waterproof and moisture-proof envelope from showerhead to empty.

Previous vs. New Bathe Waterproofing Know-how

There are lots of acceptable strategies to assemble a top quality tile bathe, all of them contain totally different proprietary merchandise and strategies.

Conventional Bathe – My Previous Method

The standard waterproofing course of is complicated, nevertheless it’s not unimaginable to know. Most bathe installations used to contain copper bathe pans, mud flooring, cement backer boards, mesh tape, thinset,  and liquid waterproofing sealer.  Later, remodelers started putting in PVC bathe pan liners to get rid of the time and price concerned with mud bathe pans.

Whatever the actual particulars, a standard bathe set up requires a minimum of three tradespeople participating in a 5-step course of.

Cement Board Course of

  1. The remodeler has to border the partitions and set up blocking between the studs
  2. The plumber has to put in a drain and the copper pan or PVC liner, and flood-test it.
  3. The remodeler then applies the cement board.
  4. The tile setter subsequent installs the mud flooring, and tapes and coats the cement board seams with thinset
  5. The remodeler applies 2-coats the waterproof coating to the cement board and the mud flooring.

And but the truth is that cement backer board, thinset mortar, and liquid sealers simply aren’t absolutely waterproof, even after tile and grout are utilized. Cement board solely provides dimensional stability in moist areas. In different phrases, they gained’t swell after repeated publicity to moisture in your bathe.

Thinset mortar, tile, and grout aren’t waterproof both. Some tile absorbs little or no, whereas grout and pure stone are porous. And lastly, sealers don’t make your bathe waterproof; they solely shield the grout from staining from physique oils and soaps.

Issues with the “Previous Means”

Standing water can get trapped within the bathe pan under the tile degree. The bathe flooring tile and grout will seem to dry in 24 hours, but when your bathe was improperly constructed, the 1.5 inches or extra of deck mud underneath the ground tiles won’t ever dry.

Ultimately, the moisture wicks up the partitions behind the tile, and also you’ll see mould strains on the wall-to-floor transition, on the curb and even in recessed niches in the event that they’re uncovered to sufficient direct water.

You might also see efflorescence within the flooring tile grout joints.

Efflorescence is a chalky white substance that begins by staining your grout and may develop to virtually stalagmite circumstances, the place it seems to be rising out of your bathe flooring grout.

Schluter Bathe System – My “NEW” Means

Schluter-Methods supplies an built-in household of merchandise through which the person elements collectively type a bonded, watertight meeting.

The attraction to me was that the Schluter System dramatically reduces complete set up time, is lighter than cement board, and is straightforward to chop with much less mess. Additionally it is an all-inclusive package deal containing every of the elements required to create a watertight bathe meeting with no mortar mattress. And it’s a great bonded waterproof system for each conventional tiled showers and steam showers.

Waterproof vs Moisture Proof

Waterproof means water gained’t move by way of.  The tile, setting mortar, grout, caulk and sealers is perhaps water resistant, however they aren’t waterproof.

The Schluter bathe system goes additional, providing an entire line of elements together with bathe curbing, waterproofing strips, seamless corners, and pipe and mixing valve seals assist full the waterproofing course of.

Schluter Waterproofing Choices

Schluter gives two methods of water proofing a bathe.

  • KERDI membrane

They’ve strong KERI-BOARDS which are utilized just like cement board, and fixed to studs, they usually have a KERDI membrane that may be utilized over a backer substrate. These two choices let you cope with many various bathe purposes and conditions.

The Schluter KERDI waterproofing membrane is designed to be utilized over strong backing. It’s an eight mil (zero.2 mm) pliable, easy-to-install, sheet materials that’s appropriate to be used in showers, bathtub surrounds, and residential steam showers.

Schluter KERDI-BOARD waterproof constructing panel is a light-weight, easy-to-cut XPS foam panel that gives a water-proof barrier.

Along with being helpful in showers, surrounds, and steam showers, KERDI-BOARD can be used to create waterproofing assemblies with tile coverings comparable to bathe benches, niches, cabinets, and so forth.

As a remodeler, I want utilizing the KERDI-BOARD as a result of I’m much less expert with a trowel. These boards are straightforward to make use of as a result of they’re put in just like drywall or Durock however methodlighter. Additionally they minimize simply with a utility blade and are much less messy than chopping cement board. For me this implies I can reduce inside the home, saving time.

KERDI-BOARD Protection and Slicing

Every grid-lined KERDI-BOARD are available giant sheets for quick protection. Should you’re cautious in your set up, the grid strains can be utilized to line up your fasteners alongside the studs. Taking the time to put out fasteners in the identical aircraft seems neat and provides shoppers the impression of professionalism.

Word – you possibly can reduce KERDI-BOAR with a knife, noticed or desk noticed. When you have repeat cuts or course of that you simply do, pre-cutting elements in your store could also be an environment friendly train.


If the wall is just not plumb you apply quick setting LHT mortar [LHT= Large, Heavy Tile] to the studs and apply the board with a degree to realize plumb. You should use screws to briefly maintain the board plumb till the thinnest is dry. Then return to put in your fasteners not more than 12″ vertically aside.

Obtainable KERDI-BOARD Panel Thicknesses

  • Three/16″ 5 mm
  • Three/eight″ 9 mm
  • 1/2″ 12.5 mm
  • 5/eight″ 15 mm
  • Three/Four″ 19 mm
  • 1″ 25 mm
  • 1-1/2″ 38 mm
  • 2″ 50 mm

Professional Tip

Kerdi-Board seams ought to be positioned on wall studs. Use one washer at seams to safe two panels.


  • 32″ x 48″ x 1/2″(KB121220812)
  • 64″ x 48″ x 1/2″ (KB1212201625)
  • 96″ x 48″ x half″ (KB1212202440

KERDI Membrane

If KERDI-BOARD is the spaghetti, then KERDI-BAND is the meat sauce. The KERDI-BAND, mixed with preformed inside and out of doors corners, [KERDI-KERECK] is used to seal all seams, corners and fastener places. The band is utilized with a 2-inch overlap, with thin-set, and smoothed out with putty knives creating a water-proof seam.

(5″ broad – used to attach KERDI membrane or KERDI-BOARD with 2″ overlap)

  • 5″ x 16′-5″ (KEBA100/125/5M)
  • 5″ x 33′ (KEBA100/125/10M)
  • 5″ x 98′-5″ (KEBA100/125)
  • Inside Corners: (KERECK/FI2 – 2 pack or KERECK/FI10 – 10 pack)
  • Outdoors corners: (KERECK/FA2 – 2 pack or KERECK/FA10 – 10 pack


When utilizing the KERDI-BAND you should guarantee a two inch overlap in all places it overlaps—corners, outdoors bathe curbs, joints between sheets, and run the sheet from the drain to above the bathe heads.

KERDI-BAND membrane

  • Three′-Three″ x 16′-5″ (54 ft2) (KERDI200/5M)
  • Three′-Three″ x 23′ (75 ft2) (KERDI200/7M)
  • Three′-Three″ x 33′ (108 ft2) (KERDI200/10M)
  • Three′-Three″ x 65′-7″ (215 ft2) (KERDI200/20M)
  • Three′-Three″ x 98′-5″ (323 ft2) (KERDI200)
  • 6′-7″ x 98′-5″ (646 ft2) (KERDI200200)

Professional Tip

To play KERDI-BAND use a 1/Four x Three/16 trowels and hold notches in one-direction. Use a putty or tape knife to clean banding and squeeze out all air bubbles between the band and the thinnest.

Drain Choices

Schluter gives an entire system and their drains include built-in bonding flange ensures waterproof connection at prime of meeting. These drains [square or lineal] might be put in with prefabricated foam bathe trays or mortar bases. Their drain grate assemblies accommodate totally different tile thicknesses.


Schluter sells premade curbs in three sizes and one ramp.

  • 38″ L x 6″ H x Four-1/2″ W (KBSC 115 150 970)
  • 48″ L x 6″ H x Four-1/2″ W (KBSC 115 150 1220)
  • 60″ L x 6″ H x Four-1/2″ W (KBSC 115 150 1524)
  • Ramp: 48″ L x 15-7/eight″ W x 1-1/2″ H(SR 122)

These curbs are tremendous handy and in the event that they don’t suit your wants you possibly can all the time use the KERDI-BOARD and customized make your personal curb.

Tip: Utilizing your left over KERDI-BOARD to make your bathe curb is a good way to make use of up scrap materials and get monetary savings.


In contrast to the normal technique that leaves a niche round pipe penetrations, which I’ve all the time seen as an Achilles heel for cement board bathe techniques. The KERDI-SEAL is a rubberized gasket that slides over the pipes and bathe valve making it a water-proof connection.

  • Pipe seal: (KMS185/12 – 1/2″ opening or KMS185/20 – Three/Four″ opening)
  • Mixing valve seal: ( KMSMV235/114 – Four-1/2″ opening

Word: The Schluter drain Package consists of Four inside and a couple of outdoors corners, and 1 pipe seal with Three/Four″ opening and a big mixing valve seal

Pre-sloped KERDI Bathe Tray or Mortar Mattress

The final a part of the Schulter bathe system is the bathe tray. The trays could be modified by chopping to a customized measurement, or you should use a dry-pack mortar mattress.

Waterproof Bathe Set up Tip

In case you are contemplating a tile bathe set up, be certain that your installer outlines a waterproofing plan. Analysis this plan, and ensure you’re snug with it. Insist your bathe pan be flood-tested previous to putting in any tile. If the water degree drops in 24 hours or moisture is seen (wicking) above the water line, don’t let your installer proceed till this difficulty is resolved.

Is Schluter Value it?

With tile installations, numerous sudden points can come up, particularly if issues aren’t finished appropriately. With at the moment’s YouTube movies, increasingly DIYer are tackling tasks like tiling and bathe installations.  Whereas I’m a fan of DIY, I’ve been round lengthy sufficient to see that many DIYer, and a few contractors too, search for methods to remove bills by slicing corners. Slicing corners when waterproofing a bathe could be one of many costliest errors one could make when transforming.

I really feel that the Schluter system meeting supplies superior moisture administration because it doesn’t allow moisture to penetrate into the mortar mattress or strong backing, permitting the meeting to dry utterly between makes use of.

It additionally has fewer steps concerned and thus is extra more likely to be adopted, versus the normal cement-board, multi-step course of.

Your complete course of took me Three.5 hours and fewer than $750.00

Backside line

The built-in Schluter-Bathe System eliminates leaks, reduces the potential for efflorescence and mould progress within the system, and dramatically reduces complete set up time to make sure success and make bathe set up simpler than ever.

Putting in a Waterproof Bathe With The Schluter Bathe System – Video

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