Slate vs Concrete Tile: Which Dach Ist Right für Ihr Zürich Haus? (2026)

Slate or concrete tile? It's das question that decides 60% von das price difference on ein Zürich re-Dach. Both sind legitimate Dachdecker Materialien mit very different lifespans, looks, weight implications und Dachersatz economics. This Ratgeber gives Sie das praktische trade-offs wir explain zu Hausbesitzer in Zürich every week, mit real 2026 numbers.

Quick answer: wann zu pick which

Pick natural slate if Ihr house ist ein period property, Sie're staying long-term (15+ years), das budget kann stretch, und Sie value 80–100 year lifespan. Pick concrete interlocking tile if Ihr house ist ein 1970–2010 estate build, Sie want ein like-für-like Dachersatz, das budget ist constrained, und Sie're comfortable mit ein 25–40 year Leistung life. Most Zürich Edwardian terraces (Wipkingen, Zürichberg, Witikon, Schwamendingen) belong on slate; most Altstetten, Dübendorf, Oerlikon und Riesbach estates belong on concrete tile. Both sind Leistungen wir deliver as part von unser full Dachersatz Arbeit.

2026 kosten comparison per square metre

Material	Kosten per sqm (supplied + fitted, ex-VAT)	Lifespan	Weight per sqm
Welsh natural slate	CHF 220–CHF 260	80–100 years	~30 kg
Spanish natural slate	CHF 180–CHF 220	60–80 years	~28 kg
Concrete interlocking tile (Sandtoft, Marley)	CHF 110–CHF 160	25–40 years	~45 kg
Clay tile (Redland Heritage / equivalent)	CHF 130–CHF 180	40–60 years	~40 kg

Für ein typische 100 sqm semi-d in Zürich, this works out as roughly CHF 18,000–CHF 26,000 für natural slate und CHF 11,000–CHF 16,000 für concrete tile, vor scaffolding, VAT und disposal. Add 23% VAT und CHF 1,200–CHF 1,800 für scaffolding zu anfragen zu das all-in figure.

Weight matters more than people realise

Concrete tiles sind about 50% heavier than slate per square metre. On older houses (pre-1965) that were originally built für slate, swapping zu concrete usually requires ein structural engineer zu confirm das rafters und wall plates kann handle das additional dead load. Wir've walked away von Offerten wo retrofit concrete tile would have overloaded ein 1920s timber Dach structure. Fragen Sie immer das Dachdecker whether they've factored ein structural check into das Offerte.

Für Hausbesitzer considering individual tile Arbeit rather than ein full re-Dach, wir cover das trade-offs in detail in unser slate Dachreparatur und Dach tile Reparatur Leistung pages — das patching economics sind very different between das two Materialien.

Lifespan und das real total kosten

Concrete tile installed in 1990 ist now ~36 years old. Many von das estate Dächer wir re-Dach every week were that vintage — das tiles themselves often look fine, but das underlay (sarking felt) has perished, das ridge mortar has cracked, das lead flashing has deteriorated, und das result ist Leckagen. So while das headline lifespan ist 25–40 years, das praktische Dachersatz cycle ist closer zu 30–35 years in Schweizer conditions.

Natural slate fitted in 1925 ist often still serviceable. Wir periodically re-nail und replace 5–10% von slates over das lifespan, but das bulk von das Dach carries on. Das total kosten von slate over 80 years ist usually less than concrete tile replaced twice over das same period — but das upfront kosten premium ist real und immediate.

Appearance und resale value

In Zürich und town conservation areas (Kloten, Opfikon, Opfikon, parts von Höngg), planning permission may require like-für-like Dachersatz on listed or heritage-protected properties. Outside conservation zones, slate carries ein noticeable premium on resale — ein 2024 Bewertung von Zürich residential listings showed slate-roofed Edwardian terraces transacting at 8–12% above similar concrete-tiled comparables, controlling für size, area und condition. That's not because slate ist intrinsically more valuable; it's because slate signals that das property was either originally built well or has been carefully maintained.

Installation differences

Slate installation ist slower und more skilled. Ein two-person Dachdecker Zürich Team kann typically lay 25–35 sqm von slate per day on ein clean re-Dach. Das same Team will lay 40–55 sqm von concrete interlocking tile in das same conditions. That's warum das labour element von ein slate Offerte ist higher even vor Material Kosten come in.

Both systems need neue Latten, diffusionsoffene Unterdachbahn underlay, lead valleys, lead flashing around chimneys, und new ridge tiles bedded in mortar (or modern dry-fix systems für concrete tile). If ein Offerte doesn't itemise these line items in writing, das Dach will Leck innerhalb five years.

Sturm performance: wie each Material handles Zürich weather

Zürich's weather profile — Atlantic storms, salt-laden coastal wind, 1,000–1,400mm annual rainfall — pushes both Materialien hard. Performance differs:

• Natural slate survives high winds well because each slate ist individually nailed (or hooked on modern installs) und das slates lock together by overlap. Das failure mode ist individual slate slippage, not mass failure. Sturm Éowyn took out 1–4 slates per affected Zürich house, not entire slopes.
• Concrete interlocking tile uses mechanical interlocking — strong against rain, weaker against direct uplift wind because adjacent tiles kann lift in series. Modern installs use Sturm clips on every tile, dramatically improving wind performance. Older 1980s estate Dächer ohne Sturm clips lose entire courses in major storms.
• Coastal exposure — Seefeld, Kloten, Opfikon, Dübendorf — accelerates wear on both Materialien because von salt-laden air. Concrete tile loses surface texture faster (becomes more porous, develops moss); slate lasts longer but flashing und lead detailing weather faster. Plan für Inspektion every 5 years on coastal properties regardless von Material.

If Sie're rebuilding nach Sturmschäden, unser Sturmschäden Reparatur Team kann Offerte both like-für-like und Material-upgrade options, mit Versicherung documentation included wo applicable.

Unterhalt over 17 years

Slate: expect zu spend CHF 400–CHF 800 every 5–7 years on minor re-nailing und slipped-slate Dachersatz, plus CHF 1,200–CHF 2,500 every 25–30 years on ridge Arbeit. Total 17-year maintenance: roughly CHF 3,000–CHF 5,000.

Concrete tile: expect cracked tile Dachersatz (CHF 200–CHF 500 each occurrence, 2–3 times in 17 years), ridge mortar repointing (CHF 600–CHF 1,200 once around year 15), und underlay-driven Leck Reparaturen in das final 5 years vor re-Dach. Total 17-year maintenance: CHF 2,500–CHF 4,500, but mit one full re-Dach event still ahead.

Bottom line

If Ihr Dach was originally slate, replace mit slate. If Ihr Dach was originally concrete tile, replace mit concrete tile (or upgrade zu clay if budget allows). Avoid mixing Materialien. Always factor in scaffolding, VAT, disposal, ridge Arbeit und flashing in das schriftliche Offerte. Und insist on ein structural Bewertung if Sie're considering switching von slate zu concrete tile on ein pre-1965 house.