StoVentec Glass panel
97% recycled glass support panel. Rigid, rot-proof, A2 rated. Replaces traditional cladding — render is applied directly onto it. Thickness 6 mm, weight ~11 kg/m².
Sto system — Rendered ventilated facadeStoVentec
StoVentec
Glass
The only ventilated facade system with render finish. Recycled glass support panel, A2 rating, total architectural freedom. One system, one manufacturer, one expertise: Sto. QUASART applicator in Luxembourg.
Euroclass A2Sto CertifiedRecycled glassVentilated render
A2Fire rating
1Integrated system
40+ yrsLifespan
Why StoVentec?
Ventilated render — the best of both worlds.
StoVentec is the only system that combines the advantages of a ventilated facade (air gap, moisture evacuation, thermal bridge elimination) with a render finish (monolithic appearance, unlimited palette of colours and textures). The Sto recycled glass support panel replaces traditional cladding — render is applied directly onto the panel.
QUASART, based in Crauthem (L-3327), is a certified Sto applicator in Luxembourg. We master the entire StoVentec system: aluminium subframe, Glass support panel, reinforcement, StoSilco or StoLotusan finish render. We operate in Luxembourg, Moselle (Metz, Thionville) and Belgium (Arlon).
StoVentec · System sheet
Données certifiéesFire resistanceA2
Thermal performance9.8
Architectural freedom10.0
Weathertightness9.5
Maintenance requiredLow
FinishSto render
Support panelStoVentec Glass — 97% recycled glass, 6 mm thick
Fire ratingA2-s1,d0 according to EN 13501-1
Panel weight~11 kg/m² (panel only, excluding render)
Formats1,200 × 2,600 mm standard — cut on site
Air gap40 mm minimum — ventilated top and bottom
Compatible rendersStoSilco, StoLotusan, StoLevell, StoColor
ETA-07/0201EN 13501-1 (A2)DTU 41.2DTU 33.1EN 13830RE 2020
Finishes & appearances
Over 800 shades. Zero limits.
Sto render offers the widest palette of all ventilated facades — plains, two-tone, material effects.
Fine
Fine trowelledGrain 1.0-1.5 mm — smooth contemporary look
Standard
Standard trowelledGrain 2.0 mm — the residential classic
Scratched
Scratched / ribbedDirectional grooves, graphic effect
Polished
Polished concrete effectStoLevell In — raw mineral look
Two-tone
Two-toneTwo shades, architectural volume play
Lotus
Lotus effectStoLotusan — self-cleaning by rain
System components
One integrated system. Every component by Sto.
Sto aluminium subframe
Sto-specific T and L aluminium profiles. Adjustable fixing brackets, plumb correction. Ventilated air gap 40 mm minimum. Load calculation by Sto engineering department.
StoSilco finish render
Hydrophobic silicone-silicate render — lotus effect, self-cleaning. Over 800 RAL and NCS shades. Grain 1.0 to 3.0 mm. The standard for StoVentec ventilated facades.
StoLotusan — lotus effect
Patented Sto lotus-effect finish render — rain cleans the facade. Extreme hydrophobicity, resistance to algae and fungi. Ideal for north/west-facing facades in Luxembourg.
StoGlass reinforcement
Fibreglass reinforcement mesh embedded in the base coat. Impact and crack resistance. Applied in one or two layers depending on the required resistance class.
Insulation behind panel
The StoVentec system is compatible with all insulations: EPS, rock wool, wood fibre. Insulation is fitted between uprights, the breather membrane protects, the air gap ventilates.
Installation
StoVentec application step by step
An integrated system = every step is defined by Sto. QUASART strictly follows the specifications.
01
Subframe & plumb adjustment
Fixing aluminium brackets to the substrate, laser alignment. Installing vertical uprights. Correcting wall irregularities up to 100 mm.
Laser · 100 mm correction02
Insulation + breather membrane
Fitting insulation between uprights (rock wool, EPS or wood fibre). Applying HPV breather membrane over insulation. 40 mm ventilated air gap maintained.
Insulation + HPV + 40 mm03
StoVentec Glass panel
Screwing recycled glass panels to aluminium uprights. Diamond grinder cutting. Panel joints sealed with Sto mastic.
Screwing · Diamond · Sto mastic04
Reinforcement + base coat
Applying StoArmat base coat to the panel, embedding StoGlass mesh. Drying 24-48h depending on conditions. Surface ready for finishing.
StoArmat · StoGlass · 24-48h05
Finish render
Applying StoSilco or StoLotusan finish render in one or two passes. Grain 1.0 to 3.0 mm. RAL or NCS shade defined in the layout. Result: monolithic facade.
StoSilco · 1-2 passes · RAL/NCSTechnical standards
Standards & certifications
The StoVentec system has a European Technical Approval (ETA) covering the entire assembly.
ETA-07/0201
European Technical Approval
ETA specific to the StoVentec Glass system — covers the support panel, subframe, fixings and finish render. CE marking of the complete system.
EN 13501-1
Fire classification
The StoVentec system achieves A2-s1,d0 rating with the Glass panel — compatible with high-rise, public buildings and buildings with enhanced fire requirements.
DTU 41.2
Applied external cladding
The StoVentec system follows DTU 41.2 principles — subframe, ventilation, fixings — while derogating through its specific ETA for render finish.
DTU 33.1
Curtain walling
Complementary reference for lightweight facades — applicable to the aluminium uprights and cross-members of the StoVentec system.
EN 13830
Curtain walling — product standard
European performance standard for lightweight facades. The StoVentec system is tested and certified under this standard for air permeability and weathertightness.
RE 2020 / GPE
Thermal performance
The StoVentec system with integrated insulation meets RE 2020 and GPE Luxembourg requirements. The Glass panel and render have no thermal bridge — the only bridge is the aluminium subframe.
Applications
Ventilated render wherever direct render is no longer sufficient
01
Renovation of cracked render facades
The primary use case for StoVentec — overcladding a degraded render facade with a ventilated system and new render finish. No removal of the old render. Integrated thermal improvement.
02
Public buildings
A2 rating of the Glass panel — compatible with public buildings and buildings subject to fire requirements. Render finish for seamless urban integration with existing buildings.
03
New collective housing
Alternative to direct ETICS when ventilation is required — low-energy and RE 2020 schemes with monolithic render finish. StoLotusan for exposed facades.
04
Mixed render + cladding facades
StoVentec on the lower section or main building body, combined with wood, zinc or HPL cladding as accent. StoVentec render integrates perfectly with other QUASART materials.
Selected projects
StoVentec in context
StoVentec Glass + StoSilco blanc
Collectif · 2024Résidence GasperichGasperich, Luxembourg
StoVentec A2 + StoLotusan
ERP · 2023École KirchbergKirchberg, Luxembourg
StoVentec sur enduit fissuré
Rénovation · 2023Rénovation EschEsch-sur-Alzette, Luxembourg
StoVentec + bardage bois accent
Résidentiel · 2024Villa StrassenStrassen, Luxembourg
StoSilco anthracite taloché
Tertiaire · 2024Bureaux BelvalBelval, Luxembourg
StoVentec bicolore
Collectif · 2023Immeuble ThionvilleThionville, France
StoVentec is render that breathes. The ventilated facade without giving up the rendered look — the best of both worlds.QUASART — Certified Sto applicator
FAQ
Everything about StoVentec
System, performance and installation
Standard ETICS bonds insulation directly to the wall and render directly to the insulation — no air gap. StoVentec inserts a ventilated air gap between the insulation and the support panel, like cladding. Result: better moisture management, thermal bridge elimination, superior durability. The additional cost is offset by longevity.
Yes — 97%. The panel is manufactured from post-consumer recycled glass (bottles, glazing). It is rigid, rot-proof, A2 rated and emits no toxic substances. It is one of the most environmentally friendly facade panels on the market.
All Sto finish renders are compatible: StoSilco (silicone-silicate, the standard), StoLotusan (self-cleaning lotus effect), StoLevell (polished concrete effect), StoColor (finish paint on render). Over 800 RAL and NCS shades available.
It is actually its primary use case. StoVentec allows overcladding a degraded or cracked render facade without removing the old render. The subframe fixes to the existing wall, insulation fills the voids, the Glass panel receives the new render. Result: new facade, improved thermal performance.
Yes. QUASART is a trained and referenced Sto applicator for the installation of the StoVentec system in Luxembourg. Our teams are trained in the system specifics — Glass panel, dedicated subframe, Sto renders. The Sto system warranty applies on our projects.
Cost varies between 200 and 350 EUR/m² installed depending on insulation thickness, type of finish render and facade complexity. It is more expensive than standard ETICS but the durability and moisture management justify the investment. QUASART provides a precise quotation after study.
Areas of operation