Thin stone tiles
Natural stone sawn to 10-30 mm thickness. Bonded to masonry substrate or clipped to subframe. Moderate weight (20-50 kg/m²). Authentic appearance guaranteed — each piece is unique.
Stone facades — Mineral nobilityNatural
Natural
stone
Thin stone tiles, stone composite panels, reconstituted stone. The authenticity of stone without the structural constraints. QUASART installs and specifies in Luxembourg and the Greater Region.
A1 RatingThin stoneLimestone · Sandstone · SlateVentilated facade
A1Non-combustible
50+ yrsLifespan
100%Natural
Why stone?
Authenticity without constraints.
Natural stone on facades evokes permanence, prestige and territorial roots. But traditional pinned stone (solid blocks fixed to subframes) requires load-bearing structures dimensioned accordingly and stonemason expertise. Contemporary solutions — thin tiles, stone composite panels and reconstituted stone — offer the same visual result with installation compatible with ventilated facade systems.
QUASART, based in Crauthem (L-3327), focuses on thin stone and stone composite systems suited to lightweight subframes. We do not install heavy pinned stone (stonemasonry, NF DTU 55.2) — that trade belongs to stonemasonry and structural brickwork. However, we master the systems that achieve an authentic stone appearance on any substrate, including over ETICS.
Thin stone · Material sheet
Données certifiéesFire resistanceA1
Durability9.5
Aesthetic nobility10.0
Frost resistance9.0
Maintenance requiredLow
Material originNatural rock
Stone typesLimestone, sandstone, slate, granite, travertine, marble
Tile thickness10 to 30 mm — bonded or clipped to subframe
Composite thickness3 to 6 mm — natural stone + aluminium or resin backing
Tile weight20 to 50 kg/m² depending on thickness and density
Composite weight5 to 12 kg/m² — compatible with lightweight subframe
Fire ratingA1 (natural stone) — non-combustible
DTU 41.2EN 13501-1 (A1)EN 12326 (ardoise)EN 1469NF EN 771-6RE 2020
Stones
The stones we work with
Each stone has its colour, texture and ageing. The choice depends on the desired appearance and exposure.
01 / STONES
Limestone
Burgundy stone, Jura, ComblanchienDurability8.0
Aesthetics9.0
Availability8.5
Soft sedimentary stone, beige, cream and blonde tones. Widely used in traditional Luxembourg and Lorraine architecture. Develops patina over time. Suitable for thin tiles and reconstituted stone.
Classic02 / STONES
Sandstone
Moselle sandstone, Vosges sandstoneDurability8.5
Aesthetics8.5
Availability7.0
Local stone from the Greater Region. Warm pink, ochre and brown tones. Strong regional identity — guaranteed territorial roots. Variable frost resistance depending on porosity. QUASART selects certified frost-resistant stones.
Regional03 / STONES
Slate
Natural slate — Spain, BrazilDurability9.5
Aesthetics9.5
Availability7.5
Foliated metamorphic stone, grey-blue to deep black. Powerful graphic appearance, unique natural texture. Highly weather-resistant. Used as thin tiles (3-8 mm) or composite panels.
Contemporary04 / STONES
Reconstituted stone
Cement + natural stone aggregatesDurability7.5
Aesthetics7.0
Availability9.5
Cement and natural stone aggregate cast to reproduce the appearance of solid stone. Thickness 20-40 mm, reduced weight. The most economical solution for a stone finish. Wide choice of textures and shades.
EconomicalFinishes & appearances
From raw rock to polished surface.
Each finish reveals a different character of the same stone.
Natural
Natural splitRaw split surface, authentic texture
Bush-hammered
Bush-hammeredMechanical stippling, regular grain
Honed
HonedFine sanding, silky touch
Mirror
Mirror polishedMaximum brilliance, light reflections
Flamed
FlamedThermal shock, non-slip surface
Aged
AgedArtificial patina, century-old appearance
Referenced suppliers
Our stone partners.
QUASART works with selected suppliers for the quality of their stone and the reliability of their systems.
Slate & natural stone · SpainSlate · Worldwide · Thermostone
CUPA STONE
Natural Slate · Stone · ThermostoneWorld’s leading natural slate producer. Cupa Stone range of tiles and panels in slate, quartzite and limestone. Thermostone system (stone composite panels + integrated insulation).
Natural Slate — natural slate tiles
Stone Panels — clipped thin stone panels
Thermostone — stone + integrated insulation
Luxembourg stock availability via merchants
Pre-assembled stone panelsPre-assembled · Fast install · CE
STONEPANEL
Sahara · Laja · Maxi · OrientPatented system of natural stone panels pre-assembled on cement backing. Rapid installation by bonding or mechanical fixing. Wide stone choice (slate, quartzite, limestone, sandstone). CE certificate and A1 rating.
Pre-assembled panels — 3× faster installation
Slate, quartzite, limestone, sandstone
Thickness 3.5 cm — weight ~55 kg/m²
Mechanical fixing or bonding
Ultra-thin flexible stone · InnovationUltra-thin · Flexible · Innovation
FLEXSTONE
Natural · Design · XLUltra-thin natural stone sheets (1-2 mm) laminated onto a flexible backing. Weight < 3 kg/m². Applicable to curved surfaces, furniture, interior and exterior. Innovative solution for weight-critical projects.
Thickness 1-2 mm — genuine natural stone
Weight < 3 kg/m² — lightest on the market
Flexible — applicable to curved surfaces
Slate, mica, iron oxide, quartzite
Local stone · Greater RegionLocal · Short chain · Identity
REGIONAL QUARRIES
Moselle sandstone · Jaumont stone · Euville stoneLocal stone sourcing from Greater Region quarries — Moselle sandstone, Jaumont stone (golden yellow limestone), Euville stone. Complete traceability, short supply chain, territorial identity.
Jaumont stone — golden yellow limestone, Lorraine
Moselle sandstone — pink/ochre tones
Euville stone — hard white limestone, Meuse
Short supply chain — quarries within 200 km
Available systems
Tiles, composites, reconstituted — stone adapted to everything.
Stone composite panels
Natural stone laminated onto aluminium, resin or fibreglass backing. Total thickness 3-6 mm, weight 5-12 kg/m². Compatible with lightweight subframe and ventilated facade.
Reconstituted stone
Cement + natural stone aggregates cast. Reproduces the appearance of solid stone at lower cost. Thickness 20-40 mm. Wide choice of textures and shades.
Pre-assembled panels
Stonepanel and similar systems — natural stones pre-assembled on cement backing. Installation 3× faster than unit laying. Ideal for long runs.
Flexible stone
Flexstone — ultra-thin natural stone sheets (1-2 mm) on flexible backing. < 3 kg/m². For curved surfaces, lightweight cladding and weight-critical projects.
Ventilated stone facade
All systems are compatible with an aluminium ventilated subframe — 20-40 mm air gap, HPV breather membrane, ETICS insulation behind cladding. DTU 41.2 compliant.
Installation
Thin stone installation techniques
QUASART masters thin stone and composite systems — not heavy pinned stone (DTU 55.2).
01
Bonding to substrate
Tiles and panels bonded to masonry or ETICS with specific adhesive mortar. Substrate preparation mandatory. Double buttering for formats > 30 × 30 cm.
Adhesive mortar · Double buttering02
Clipping to subframe
Composite panels and tiles clipped to aluminium rails. Hidden fixing, individual replacement possible. Ventilated air gap. The most versatile system.
Alu rails · Hidden fixing03
Pre-assembled panels
Stonepanel and similar — installation by horizontal row from bottom to top. Mechanical fixing by screws + adhesive. 3× faster than unit laying.
3× faster · Bottom to top04
Flexible stone lamination
Flexstone — application by roller or trowel bonding. 24h drying. Finish with water repellent or matt varnish. Applicable to flat and curved surfaces.
Roller · Curves · Water repellentTechnical standards
Standards & certifications
Thin stone systems installed by QUASART comply with current European standards.
DTU 41.2
Applied external cladding
DTU applicable to thin stone systems in ventilated facades — subframe, fixings, air gap.
EN 13501-1
Fire classification
Natural stone is rated A1 — non-combustible. Stone/aluminium composite panels are rated A2 or B depending on the backing.
EN 12326
Slates and schists
European standard for natural slates in roofing and cladding. Classification by type, frost resistance, flexion.
EN 1469
Natural stone products — slabs
Specifications for natural stone slabs and tiles used in facade cladding.
NF EN 771-6
Specifications for stone elements
Standard applicable to natural stone masonry elements — mechanical properties, water absorption, frost.
RE 2020 / GPE
Thermal compatibility
Natural stone is a high thermal inertia material. Compatible with RE 2020 and GPE Luxembourg in ventilated facades with ETICS.
Applications
Stone, from contemporary to heritage
01
Villas & prestige residences
Limestone or slate tiles on high-end individual house facades. The authenticity of stone with the lightweight of modern systems.
02
Institutional buildings
Museums, town halls, embassies — natural stone confers a nobility and permanence that synthetic materials cannot equal. A1 rating.
03
Renovation & embellishment
Overcladding existing facades with thin stone or reconstituted stone — rejuvenation without structural intervention. Compatible with ETICS for thermal improvement.
04
Plinths & bases
Natural stone on the lower part of facades for a robust and elegant plinth. Resistance to impacts, splashing and run-off. Ideal combined with other materials on upper floors.
Selected projects
Stone in context
Calcaire Jaumont plaquettes
Résidentiel · 2024Villa BertrangeBertrange, Luxembourg
Grès de la Moselle
Institutionnel · 2023Ambassade KirchbergKirchberg, Luxembourg
Ardoise Cupa Stone
Collectif · 2024Résidence GasperichGasperich, Luxembourg
Pierre reconstituée beige
Résidentiel · 2023Maison StrassenStrassen, Luxembourg
Stonepanel quartzite
Tertiaire · 2023Commerce EschEsch-sur-Alzette, Luxembourg
Composite pierre/alu
Tertiaire · 2024Bureau ThionvilleThionville, France
Stone is the most honest material — it does not lie, does not discolour, does not go out of fashion. It is simply there, forever.QUASART — Philosophy of materials
FAQ
Your questions about stone facades
Systems, installation and limitations
No. Heavy pinned stone (solid blocks fixed to metal subframe, NF DTU 55.2) belongs to stonemasonry and structural brickwork — a distinct trade. QUASART focuses on thin stone systems (tiles, composite panels, reconstituted stone) compatible with lightweight subframes and ventilated facades.
Tiles are natural stone slices of 10 to 30 mm, bonded or clipped. Weight 20-50 kg/m². Composite panels are natural stone (1-3 mm) laminated onto aluminium or resin — weight 5-12 kg/m², compatible with lightweight subframe. The appearance is similar, the weight and cost differ.
Yes, if the stone is correctly selected. QUASART exclusively uses stones certified frost-resistant according to EN standards. Slate and granite are naturally resistant. Limestone and sandstone must be selected based on their porosity. Ventilated facade installation also protects the stone from standing moisture.
Yes — it is even a high-performing combination. Thin tiles are bonded directly to the ETICS reinforced render (with suitable adhesive mortar). Composite panels are fixed to subframe over the insulation. The result: a stone facade with RE 2020 thermal performance.
Cost varies by system: reconstituted stone 80-150 EUR/m², limestone tiles 150-300 EUR/m², composite panels 200-400 EUR/m², natural slate 250-450 EUR/m². Heavy pinned stone (which QUASART does not install) exceeds 400 EUR/m². QUASART provides a precise quotation after study.
Limestone (Jaumont type) and Moselle sandstone integrate perfectly into the Luxembourg and Lorraine landscape. Slate offers a more contemporary look. Reconstituted stone is the best value for money. The choice depends on the architectural context, budget and desired appearance.
Areas of operation