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Schluter Roofing: The Anaheim Owner’s Guide
Schluter roofing systems in Anaheim typically run $400-$1,800 for repairs and $8,000-$20,000 for full replacement, with most Schluter-compatible membrane and drainage components available same-day through our supply chain. We stock and install Schluter-DITRA, Schluter-KERDI, and Schluter-SHOWER membrane assemblies for roofing applications, including the specialized edge profiles and weep-screed accessories that integrate with tile and low-slope assemblies common in Anaheim’s mixed-climate zones. Most owners discover a Schluter roofing failure after seeing water stains on ceiling drywall below a tile roof, noticing lifted membrane edges near parapet walls, or finding cracked Schluter-RONDEC or Schluter-JOLLY edge trim after Santa Ana wind events.
Which Schluter Models This Applies To
Schluter roofing components fall into three main families, and matching the right part starts with reading the stamped profile code on the existing trim edge or the printed lot number on membrane remnants. Schluter-KERDI membranes carry a fleece-backed orange face for bonded assemblies; Schluter-DITRA carries a square-grid pattern for uncoupling under exterior tile; Schluter-SHOWER variants include the KERDI-DRAIN flange assemblies used on walkable roof decks and balcony conversions.
The profile trims most often replaced on Anaheim roofing are Schluter-RONDEC (rounded exposed edges, typically 3/8″ or 1/2″ reveal), Schluter-JOLLY (straight finished edges in 5/16″ through 1/2″), and Schluter-DILEX expansion joints, which separate tile fields from stucco or coping caps. We see the most confusion around RONDEC sizing: the 3/8″ profile fits nominal 3/8″ tile but the anchoring leg depth varies between the -80 and -100 series, and mixing them leaves the trim proud or recessed.
Rowan Construction Group Anaheim is an independent service provider with no affiliation to Schluter Systems. We source OEM Schluter components and, where appropriate, specify functionally equivalent profiles from competing membrane manufacturers when lead times or compatibility favor it. For Anaheim’s coastal-influenced climate with salt air exposure near the Platinum Triangle and higher UV load inland near Anaheim Hills, we generally recommend staying with Schluter’s anodized aluminum or color-coated PVC profiles rather than bare aluminum aftermarket equivalents, which we’ve seen oxidize through in six to eight years.
Signs Your Schluter Roofing Is Failing

- Water staining on interior ceilings below tile fields. The KERDI membrane or fleece bonding has separated at a seam or penetration, letting water migrate across the substrate before finding a path through. In Anaheim’s occasional heavy winter rains, this shows up first at low points where drainage slowed.
- Lifted or curled membrane edges at parapets, scuppers, or penetrations. The Schluter-KERDI-KERECK preformed corners or Schluter-KERDI-SEAL-MV mixing valve seals have lost adhesion, often from thermal cycling between 105°F summer deck temperatures and 45°F winter mornings.
- Cracked or missing RONDEC/JOLLY edge trim. Aluminum profiles fatigue at the anchoring leg after years of foot traffic on walkable roofs; PVC profiles become brittle from UV exposure, particularly on south-facing exposures above Anaheim’s older flat-roofed bungalows.
- Grout cracking in a regular pattern following membrane grid lines. The Schluter-DITRA uncoupling function has degraded, meaning the membrane has delaminated from the substrate or the shear studs have fractured, transferring substrate movement directly into the tile bed.
- Standing water or slow drainage on “flat” roof decks. The Schluter-KERDI-DRAIN flange height is wrong for the finished floor elevation, or the weep holes in the integrated bonding flange have clogged with mortar debris, a common issue when original installers didn’t protect the drain during tile setting.
Before
AfterReplacement Cost & What’s Included
| Service | Price Range (Anaheim) | What’s Included |
|---|---|---|
| Schluter membrane patch repair (localized) | $400-$1,200 | Cut back to sound substrate, prime, install new KERDI or DITRA section, re-tile affected area |
| Profile trim replacement (RONDEC/JOLLY/DILEX) | $600-$1,800 | Remove damaged trim, clean anchoring channel, install new profile, re-grout or seal |
| Drain assembly replacement (KERDI-DRAIN) | $800-$2,500 | Remove finish grate, cut out old flange, install new bonded flange, reconnect drain body, flood test |
| Full Schluter membrane replacement (walkable roof deck) | $8,000-$20,000 | Strip to substrate, inspect and repair structural deck, install new membrane system, new tile or paver finish |
The spread in each range comes down to three factors: how much finish material must be removed and replaced to access the failed component, whether the substrate beneath the membrane is sound (plywood or concrete decks with rot or spalling add $400-$1,500), and the tile or paver specification being reinstalled. We deliver a written line-item quote before any work starts, under Clause 1 of the Haven Standard, and no change to that scope proceeds without a signed change order. Our 365-Day Done Right Promise covers the workmanship, and Schluter OEM membrane components carry the manufacturer’s system warranty when installed to their published specifications.
DIY or Call Us?

There is one thing an owner can safely check: the condition of visible profile trim and the drain grate. If RONDEC or JOLLY edges are loose enough to wiggle by hand, or if the KERDI-DRAIN grate sits unevenly, the anchoring system has failed and water is likely migrating behind.
What goes wrong with DIY Schluter roofing repair is almost always membrane bonding. KERDI and DITRA require a specific unmodified thin-set mortar for fleece bonding, applied at proper coverage rate with the correct trowel notch, in temperature and humidity conditions that allow curing before exposure. We’ve been called to Anaheim jobs where a homeowner used premixed mastic or latex-modified mortar, both of which can prevent proper bond and void any warranty. The second common failure is sequencing: membrane seams must overlap per Schluter’s specified dimensions, and penetrations require preformed collars or carefully cut membrane layers that most owners don’t have the templates to execute.
We don’t recommend walking a wet or damaged tile roof to inspect membrane condition. The slope, the glaze on clay or porcelain tile, and the height make this genuinely hazardous. Our crews use roof jacks, harness tie-offs, and walk boards as standard practice. Call (562) 245-4592 to schedule your free estimate. We’ll photograph what we find, explain it in plain terms, and put the repair scope and price in writing before any work starts.
FAQs
In Anaheim’s climate, a properly installed Schluter-KERDI membrane assembly should last 20-30 years, though edge profiles and drain grates typically need attention at 12-18 years from UV exposure and thermal cycling. The Santa Ana wind season accelerates wear on exposed trim, and properties within two miles of the coast see faster oxidation on non-anodized aluminum components. Call (562) 245-4592 for an exact quote on your specific assembly - estimates are free.
Localized damage, punctures, or small seam failures can be patched with new KERDI bonded over the existing membrane using Schluter-KERDI-FIX or compatible unmodified thin-set, provided the substrate beneath is dry and sound. We do not patch over mold, saturated plywood, or delaminated areas larger than about two square feet, because the repair will fail at the edge of the compromised zone. Call (562) 245-4592 for an exact quote - estimates are free.
Profile trim replacement on an accessible roof deck takes one day; membrane patching with tile removal and replacement typically runs two to three days, depending on mortar cure time before grout can be applied. Full membrane replacement on a walkable roof deck with tile or paver finish requires five to ten working days, including substrate repair, membrane installation, flood testing, and finish replacement. We sequence trades to prevent stacking, which is how jobs finish on time. Call (562) 245-4592 to schedule your free estimate.
We stock common Schluter profiles in standard colors, KERDI membrane in 3’3″ and 6’7″ widths, KERDI-DRAIN assemblies in the two most common flange heights, and KERDI-FIX sealant on our Anaheim service trucks. Less common profile sizes, custom color anodizing, or large membrane quantities typically arrive within 24-48 hours through our regional supplier. We confirm part availability when we deliver your written quote, not after work starts. Call (562) 245-4592 for an exact quote - estimates are free.
Written by Grant Rowan, Owner, Rowan Construction Group Anaheim at Rowan Construction Group Anaheim, serving Anaheim and nearby areas.







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