Technical Portal for Sustainable Architecture
Stone Engineering for Large-Scale Projects: Eternal Aesthetics and Certified Anchoring Systems
Ventilated Facades in Natural Stone: The Monumental Envelope
Natural stone represents the excellence and eternity of architecture. VM Group creates ventilated facades in marble, travertine, granite, and Santafiora stone, combining the majesty of stone materials with the most advanced engineering systems.
From the redevelopment of historic and religious buildings like the Basilica of St. Paul in Rome, to modern design icons like the Teatro degli Arcimboldi in Milan and the technical construction of the Palazzo di Giustizia in Florence, each of our installations uses concealed AISI 304 stainless steel anchoring systems, ensuring maximum safety and a monumental aesthetic.
Marble and Stone Engineering: Beyond Cladding
Natural stone ventilated facades are not only a prestigious choice, but a highly technical solution designed to stand the test of time.
VM Group Technical Excellence:
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Stainless Steel Anchoring Systems: We use exclusively mechanical systems, including concealed ones, with stainless steel or aluminum substructures. This ensures pinpoint precision and structural strength designed to handle the specific weight of stone materials with complete safety.
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Expansion Management and Stability: Each project is developed to ensure dynamic thermal expansion control and stability over time, protecting the load-bearing structure and improving the building's thermal inertia.
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Specialization in Institutional Buildings: Our experience on internationally renowned construction sites makes us the sole partner for designers working on places of worship, institutional headquarters, and prestigious business centers.
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Durability and Asset Value: Choosing natural stone means investing in an asset that increases in value over time. Our certified installation guarantees that the natural beauty of granite or travertine remains intact, reducing the need for extraordinary maintenance to a minimum.
Florence Palace of Justice: Public Architecture and Engineering Safety
Institutional Strength in Pietra Santafiora: VM Group's Excellence in Large-Scale Projects
The Palace of Justice in Florence represents one of the most impressive and complex projects in the VM Group portfolio. In this majestic architectural complex, we engineered a ventilated façade that celebrates Santafiora stone, a material rooted in Tuscan tradition while also offering exceptional mechanical performance.
Large-Scale Engineering: Safety and Technical Rigor
Managing the envelope of a public building of this size requires specific expertise in load calculations and managing fastening systems across large surfaces.
Technical specifications of the project:
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Concealed Anchors in AISI 304 Steel: To support the substantial mass of the Santafiora slabs, we implemented a concealed mechanical fastening system in high-quality stainless steel. This solution guarantees maximum seismic resistance and certified wind load resistance for great heights.
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Differentiated Expansion Management: Given the expansiveness of the façades, our design incorporated a network of expansion joints and a "sliding point" fastening system that absorbs the building's structural micromovements, preventing cracks and ensuring the slabs remain permanently flush.
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Material Enhancement: The dry (ventilated) system allows the Santafiora stone to maintain its natural breathability, protecting the heart of the building and ensuring optimal thermal insulation for a highly populated structure.
The Partner for Contemporary Public Architecture
This project demonstrates VM Group's ability to manage highly complex projects, where the technical rigor of steel meets the timeless beauty of stone. We have delivered a building capable of defying time, representing the public architecture of the future with prestige and solidity.
St. Paul's Basilica (Rome): Invisible Engineering for Eternal Architecture
Roman Travertine and Innovation: 1,000 m2 of High-Resistance Ventilated Facade
In one of the world's most iconic and protected contexts, VM Group created the ventilated envelope for a building belonging to the Basilica of Saint Paul Outside the Walls. The project covered a surface area of 1,000 square meters, where the use of Roman Travertine—a stone symbolic of the Roman architectural identity—was reinterpreted through the most modern façade technologies.
The Challenge: Integrating Tradition with Technical Rigor
The real challenge of this project was not only aesthetic, but also related to the system's durability in a monumental context. Integrating solid travertine slabs into a ventilated system requires absolute mastery of the material's loads and hygrometric cycles.
The technical solutions adopted by VM Group:
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AISI 316 Anchoring Systems: Given the solemnity of the structure, we used superior-grade stainless steel components to ensure total corrosion resistance and centuries-long mechanical stability.
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Coplanarity Control: Thanks to a custom-engineered substructure, each travertine slab was aligned with millimeter precision, eliminating any possible unevenness and ensuring a consistent joint for proper rainwater drainage.
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Rising Damper and Humidity Management: The ventilated façade system was configured to optimize the chimney effect, protecting the building's structure and keeping the travertine dry and healthy over time, preventing the classic stagnation stains typical of wet installations.
VM Group DNA: Where History Meets Technology
This project represents the perfect synthesis of our vision: a profound respect for stone tradition combined with mastery of cutting-edge construction technologies. In São Paulo, VM Group has demonstrated that modernity can be invisible, allowing the timelessness of the stone to speak for itself, supported by impeccable mechanics.
Rimini Court: Stone Engineering: Between Shielding and Design
Navona Travertine and Sunshade Systems: Dynamism and Solar Control in Institutional Design
The Rimini Courthouse represents a technical challenge, successfully achieved thanks to VM Group's thirty-year experience in complex building envelopes. In this project, the institutional solidity of Navona Travertine—renowned for its compactness and warm cream tones—meets the most modern energy efficiency requirements.
Functional Innovation: The Vertical Stone Sunshade
The true innovation of this project lies in the dynamic management of the façade. We went beyond cladding, instead engineering a slatted solution:
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Advanced Sunshade Systems: We alternated large solid walls with vertical natural stone sunshade systems. This solution was designed to shield the courthouse from direct solar radiation, reducing summer heat load while ensuring optimal natural lighting.
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Corrosion-Resistant Stainless Steel Substructure: Given the proximity to the Rimini coast, the entire system is supported by a point-fixed substructure in AISI 316L stainless steel, chosen to ensure exceptional resistance to salt corrosion and pinpoint load stability.
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Suspended Load Engineering: The rotation and positioning of the travertine blades required rigorous structural calculations, ensuring that each element responds correctly to wind pressure and mechanical stress.
Sustainability and Solemnity
The Rimini project represents the perfect synthesis of the solemnity required by a court and cutting-edge technology. VM Group has demonstrated how natural stone can become an active element in managing thermal comfort, making the building a benchmark for contemporary public architecture.
Pininfarina Design Center: Where Design Meets the Mechanics of the Envelope
The Elegance of Natural Travertine and Technical Rigour: Excellence in Cambiano (Turin)
At the heart of global automotive creativity, the Pininfarina Design Center, VM Group has created a cladding that embodies elegance and engineering. The project involved approximately 300 square meters of ventilated façade in natural travertine, transforming a material surface into a manifesto of contemporary design.
Technological Synergy: Invisible Fixing and Millimetric Precision
Working for a brand like Pininfarina requires the utmost in aesthetic and quality standards. The challenge was to create a seamless surface, capable of reflecting the excellence of Italian design without any visual interference.
The cutting-edge solutions adopted:
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AISI 304 Stainless Steel Substructure: To ensure eternal durability and superior structural stability, we designed a metal substructure capable of eliminating even the slightest deformation.
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Fully Retractable System: Thanks to the use of invisible mechanical anchors, the natural stone "floats" above the building. This technology eliminates any mechanical interruptions, allowing the travertine to express itself in a pure, fluid surface free of visible fasteners.
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Mechanics of Tolerances: As in an automotive design studio, every joint and alignment was calculated to respect millimetric tolerances, ensuring that the façade responds correctly to thermal stress without compromising the perfection of the facade.
The Partner for Visionary Brands
This project demonstrates how VM Group is the ideal partner for businesses that make precision and aesthetics their hallmark. In Cambiano, we didn't just lay a stone: we engineered an idea of beauty, putting our thirty years of experience at the service of the world's most prestigious design.
Teatro degli Arcimboldi (Milan): Envelope Engineering for Gregotti's Icon
2,000 m2 of Nero Zimbabwe: The Perfection of a High-Altitude Ventilated Facade
For the Teatro degli Arcimboldi in Milan, VM Group oversaw a monumental cladding project that represents the state of the art in ventilated natural stone facades: over 2,000 square meters of Black Zimbabwe Granite. In this internationally prestigious project, designed by the Vittorio Gregotti firm, the challenge was not only aesthetic, but also purely engineering: translating the geometric rigor of the design into a structure capable of defying time.
The Engineering of "Disappearance": Beyond Simple Fixing
The Arcimboldi's unique construction lies in the use of a mechanical anchoring system with a concealed hook. This solution supported the imposing granite slabs while ensuring a pure, monolithic exterior surface.
However, VM Group's true added value was the dynamic control of expansion:
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Management of Fixed and Sliding Points: Each upright was designed with a system of calibrated slots to allow for the natural thermal movements of the aluminum without transmitting stress to the stone.
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Safety and Durability: The use of high-strength stainless steel components ensures an unbreakable bond between the building and its dark "skin," protecting it from corrosion and urban weathering.
A Symbol of Technical Precision
This project is not a simple envelope, but a treatise on construction techniques. The depth of Zimbabwe's absolute black meets VM Group's thirty-year expertise, setting a new standard of safety and beauty in Milan's architectural landscape.
We design solutions that are resistant to thermal cycles, because we understand the physics behind every sheet of glass.
Palafiori Sanremo: Resilience Engineering in Marine Environments
Granito Rosso e Protezione Totale: L'Eccellenza costruttiva sulla Riviera Ligure
The Palafiori in Sanremo represents an exemplary example of functional architecture inserted in one of the most hostile environments for building materials: the seafront. For this multipurpose center, VM Group created a ventilated façade in red granite, selected not only for its vibrant color but also for its intrinsic ability to resist salt corrosion.
Technical Challenge: The Battle Against Salt Air
Operating in a Ligurian microclimate means dealing daily with salt air and high humidity, factors that accelerate the deterioration of any metal or stone component that is not properly treated.
VM Group's engineering approach:
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High-Performance Anchors: For the Palafiori, we implemented anchoring systems made of specific stainless steels, capable of resisting oxidation induced by salt air, ensuring that the fastening system maintains its mechanical properties for decades.
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Design for Specific Load: Red Granite has a high specific weight. Our structural design included precise calculations of brackets and uprights to properly distribute the weight, avoiding any excessive stress on the slabs or the building's load-bearing structure.
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Ventilated Facade as a Shield: The ventilated cavity, in addition to ensuring energy efficiency, acts as a true "thermal shield" that prevents moisture from accumulating behind the stone, preventing efflorescence and ensuring the granite remains intact despite aggressive climates.
Solid, Unalterable, Iconic
The result is a work that combines the chromatic elegance of natural red with certified structural durability. Transforming the Palafiori into an architectural landmark means understanding that true beauty in architecture is that which resists the passage of time and the force of the elements.
Sardinian Granite and Thermal-Acoustic Performance: VM Group Engineering at the Service of Large Hubs
The passenger terminal at Alghero-Fertilia Airport represents a perfect combination of local identity and cutting-edge functional design. VM Group oversaw the construction of the ventilated façade using Sardinia's finest materials, Grigio Sardo Granite and Rosa Beta, transforming them into a technological system capable of meeting the challenges of a critical infrastructure.
Complex Infrastructures: Durability and Environmental Comfort
Operating in a seafront airport requires extremely high technical requirements, where structural safety must be combined with energy efficiency.
The technical pillars of the project:
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Extreme Resistance to Salt Air: Given the direct exposure to Sardinia's salty winds, we implemented a high-strength aluminum substructure with AISI 316 stainless steel components, ensuring the absolute durability of the fastening system.
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Advanced Thermal and Acoustic Insulation: The ventilated façade's air cavity was designed to act as an airlock, dramatically improving noise reduction—essential for the terminal's internal comfort—and optimizing the internal microclimate.
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Mounting Systems for Large Surfaces: The Grey and Pink Granite were installed using anchoring systems certified to withstand the vibrations and stresses typical of airport sites, ensuring perfect coplanarity across thousands of square meters.
The Welcome of Natural Stone
Thanks to VM Group's thirty years of experience, we have transformed the ancient Sardinian stone into a modern, safe, and energy-efficient shell. The result is a structure that not only welcomes travelers with the beauty of tradition, but also protects them with the best façade engineering available today.
Alghero-Fertilia Airport: Envelope Technology at the "Coral Riviera"
Prestigious Residence in Prague: The Art of Stone in Circular Volumes
Architectural Tailoring in Navona Travertine: Custom Engineering Beyond National Borders
In one of Prague's most exclusive areas, VM Group has created a shell of Navona Roman Travertine that redefines the concept of a luxury residence. This project is not just a cladding, but a successful challenge against the rigidity of the material, where the stone is modeled on organic, circular forms.
Technical Challenge: The Geometry of the Curve
The primary complexity of this villa lies in its circular volumes. To accommodate the curved lines of the architectural design, we abandoned standard solutions and adopted a "tailor-made" design.
The system's technical excellence:
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Custom-Made Calendered Substructure: We designed and installed a piece-by-piece calendered aluminum alloy framework. This pinpoint precision allowed us to maintain perfect flatness of the stone slabs along the entire circumference of the building.
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Concealed Mechanical Fixing: The aesthetic integrity of the Navona Travertine is preserved by an invisible anchoring system. The natural grain of the stone flows seamlessly, ensuring a seamless, pure, and elegant surface.
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Continental Climate Management: Prague is characterized by significant temperature fluctuations. The system was engineered with dynamic expansion joints and an insulating layer of rock wool (a non-combustible material), ensuring breathability, excellent thermal insulation, and passive fire protection.
Details from Thirty Years of Experience
Every detail, from the slanted windows to the 45-degree corners cut with surgical precision, reflects the mastery of VM Group. We have brought the excellence of the Italian stone tradition to the heart of Europe, transforming the ventilated façade into a certified, safe, and timeless technological system.
Tivoli Car Dealership – Elite Commercial Restyling
Roman Travertine and Contemporary Design: The Envelope as a Branding Tool
For this prestigious showroom in Tivoli, VM Group oversaw a comprehensive redevelopment project, transforming a standard commercial space into a space of absolute luxury. The goal was to elevate the brand's architectural identity through the masterful use of Roman Travertine, a material that defines the history of the region and the excellence of Italian design.
Synergy Between High-Tech Transparency and Stone Solemnity
The project thrives on the balance between the large glass surfaces and the material mass of the natural stone, orchestrated with engineering precision.
Technical Details of the Project:
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Fully Concealed Roman Travertine: We adopted a ventilated façade system with invisible mechanical anchors. This choice enhances the purity of the travertine slabs, creating a continuous surface that frames the windows without any visual interference from hooks or supports.
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Glass-Stone Integration: Managing the joints between the large display openings and the stone cladding required meticulous planning to ensure airtightness and a flawless aesthetic finish at every joint.
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Strategic Investment in Durability: The use of natural stone in the retail sector guarantees an ageless aesthetic. Thanks to our thirty years of experience, we have delivered a building envelope that eliminates external maintenance costs and significantly improves thermal comfort for showroom customers.
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Insulation and Performance: The natural ventilation chamber protects the display spaces from solar heat, ensuring a stable internal microclimate and reducing the impact of air conditioning costs.
Architecture that Sells
The final result in Tivoli demonstrates how VM Group's expertise can transform a commercial building into a prestigious asset. We have fused the age-old solemnity of stone with the communicative needs of a cutting-edge automotive brand, creating a work destined to maintain its allure over time.
Scandicci (Florence) – Innovation in Recomposed Materials
Marble and Granite Chips: The Synthesis of Nature and Technology
In the Scandicci industrial area, VM Group created the façade cladding for the new headquarters of Powersoft, an Italian company and world leader in professional audio technologies and patented amplification systems. For this iconic brand of technological innovation, the building envelope explores the frontiers of recomposed stone materials and advanced terrazzo. This solution represents the ideal choice for projects requiring the profound texture of stone combined with the consistent performance and homogeneity of cutting-edge manufacturing processes.
Graniglia Engineering: Homogeneity and High Performance
The use of recomposed marble and granite allowed the large surfaces of the Powersoft headquarters to be managed with absolute aesthetic control that quarried stone, due to its heterogeneous nature, cannot always guarantee, maintaining a clean and rigorous visual identity in line with the client's technological DNA.
Project Technical Specifications:
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Stainless Steel Anchoring Systems: To ensure maximum longevity for the large slabs, we implemented a stainless steel substructure specifically designed for recomposed marble and granite materials. This system ensures pinpoint flatness, essential for enhancing the homogeneous texture of the terrazzo tiles under sunlight.
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Resistance to Thermal Changes: The recomposed materials used by VM Group are engineered to have controlled expansion coefficients. This makes them extremely resistant to thermal shock and atmospheric agents, preventing cracking, crazing, and discoloration over time.
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Material Flexibility and design: The Scandicci project confirms VM Group's ability to interpret diverse architectural languages. We transform a "technical" material into a pure design envelope, ensuring a uniform aesthetic across thousands of square meters of façade.
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Durability and Zero Maintenance: Thanks to the density of the recomposed material and the quality of VM Group's qualified installation, the envelope requires minimal extraordinary maintenance, maintaining the building's decor intact and protecting the internal insulating layers for maximum energy efficiency.
Versatility at the Service of Institutional Architecture
The innovative project for the Powersoft headquarters in Scandicci demonstrates VM Group's vision: to offer tailored solutions that maximize the durability of the building envelope. We don't just install panels; we create technological shields that enhance energy performance and define the aesthetic character of the modern Tuscan urban landscape.
Perugia Car Dealership – Restyling and High-Tech Identity
Technical Ceramics and Coordinated Fixings: The Envelope as a Brand Manifesto
In Perugia, VM Group oversaw the restyling of a major automotive showroom, transforming a conventional space into a center of contemporary design and high-impact communication. For this redevelopment, we selected a technical ceramic cladding, the material of choice for those seeking the perfect blend of extreme resistance and aesthetic rigor.
Detailed Engineering: Safety Becomes Design
In an automotive context, where precision is paramount, we implemented technical solutions that reflect the quality of the products on display.
Technical Specifications of the Project:
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Mechanical Fixing with RAL-Colored Clips: We used a visible mechanical anchoring system, rendered virtually invisible thanks to the use of colored clips in the same RAL color as the ceramic. This choice ensures maximum structural strength—essential in exposed areas—without interfering with the clean color of the façade.
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Resilience and Impeccable Finish: The selected technical ceramic offers superior resistance to abrasion, urban chemicals, and UV rays, ensuring the showroom maintains its "factory-new" appearance for decades.
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Energy Efficiency and Comfort: The ventilated cavity acts as a thermal shield, protecting the showroom's large surfaces from summer overheating and improving the internal microclimate for customers and staff.
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Thirty Years of Experience in the Corporate Sector: Managing the Perugia construction site confirms our ability to interpret the guidelines of major international brands, delivering projects that enhance the property's value and brand perception.
Architecture that Welcomes and Protects
The Perugia restyling demonstrates how VM Group's expertise can give a new identity to existing buildings. We don't just cover: we create envelopes that communicate innovation, protect the customer's investment, and transform a simple retail outlet into a local icon.
Hotel Europa in Rho: Hospitality Architecture and Engineering Safety
Elegance in Natural Travertine with the Kerf System: VM Group's Excellence in Large-Scale Projects
A perfect combination of the historic nature of natural stone and the modernity of dry-laminate technology.
For this important hospitality facility located in Rho, just outside Milan, VM Group oversaw the engineering and construction of the ventilated façade, transforming the building's aesthetics and efficiency.
The choice of finish fell on travertine slabs, a noble and timeless material that gives the hotel a luminous, prestigious, and institutional image, perfectly integrated into Milan's urban context.
The Technical Heart of the Project: Kerf Fixing
From an engineering perspective, the real challenge was to ensure a visually continuous, clean surface free of visible anchoring elements, without compromising static safety and wind resistance.
The project was constructed using the Kerf mechanical fixing system. This technique involves making a continuous or localized incision (milling) along the thickness (rib) of the travertine slab. Stainless steel anchoring brackets are inserted into this invisible slot and connected to the aluminum substructure.
The advantages of this construction:
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Minimal and Exclusive Aesthetic: The fastening disappears completely behind the slab, allowing the natural veining of the travertine to take center stage.
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Safety and Durability: The system's mechanics evenly distribute loads (self-weight and wind pressure) across the substructure, absorbing the thermal expansion typical of Milan's climate.
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Energy Efficiency: By taking full advantage of the chimney effect in the cavity, the building benefits from a drastic reduction in summer heat, reducing the hotel's cooling costs.
A project that demonstrates how VM Group's thirty years of experience can transform a stone cladding into an advanced, safe, and expertly designed construction system.
A&O Shopping Center in Capalbio Scalo:
Commercial Architecture and Engineering Security
Territorial Integration in Natural Travertine with the Kerf System: VM Group's Excellence in Large-Scale Projects
For this important A&O branded commercial building located in Capalbio Scalo, VM Group engineered and installed a ventilated façade that combines the stringent thermal insulation requirements typical of a public building with the clean lines of Tuscan architecture.
The natural travertine slab finish was chosen to ensure perfect chromatic and material integration with the surrounding landscape. The stone's warm tones and unique veining give the commercial complex a modern look, yet one strongly rooted in local tradition.
Node Engineering and the Kerf System
Because this is a commercial building subject to high public traffic and constant exposure to the elements, the design had to ensure the highest standards of static safety and hydrostatic stability of the airflow.
The project was completed using a Kerf-type concealed mechanical fastening system:
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Invisible Mechanics: Using precise milling on the upper and lower horizontal ribs of the travertine slabs, the stainless steel anchoring brackets are inserted directly into the stone, completely disappearing from view.
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Technical Joint and Ventilation: Installation was performed with a consistent, precise joint between the slabs. This arrangement allows for the proper equalization of dynamic wind pressures and promotes the activation of the chimney effect in the cavity, thermally insulating the supermarket's walls and significantly reducing summer cooling energy costs.
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Management of Construction Nodes: As shown in the detail of the corner of the building, the precise alignment and management of structural tolerances ensure perfect geometric flatness of the surface, protecting the building envelope from thermal bridges and water infiltration.
A masterfully executed project that demonstrates how VM Group's thirty years of experience can elevate the architecture of commercial spaces, ensuring security, insulation, and a timeless aesthetic.
Frequently Asked Questions about Ventilated Stone Facades (FAQ)
What are the main advantages of a ventilated facade in marble or natural stone compared to traditional glue installation?
Traditional glue-down installation is highly sensitive to temperature fluctuations and humidity, with the risk of dangerous detachment of heavy stone materials over time. Ventilated facades eliminate this risk thanks to mechanical fastening to the substructure. From a thermo-hygrometric perspective, the air cavity activates a natural "chimney effect" that removes internal humidity, improves sound insulation, and drastically reduces energy consumption in both summer and winter, protecting the building's load-bearing structure.
How is the specific weight of stone or travertine cladding managed and calculated?
The weight of stone materials requires rigorous engineering of the building envelope. At VM Group, we develop a detailed design that includes static and dynamic structural calculations, sizing the aluminum or stainless steel substructures based on the thickness of the slabs, the height of the building, wind load, and seismic activity in the area. Furthermore, we perform specific pull-out tests (mechanical tensile tests) directly on the supports on site to certify the actual strength of the anchors.
What mechanical fastening systems do you use for stone slabs?
We primarily use concealed geometric or mechanical anchoring systems (using pins inserted into the slab or Kerf/Fischer-type rear dowels). This allows us to keep the stone surface completely clean, free of exposed metal elements, preserving the monumental aesthetic of the work while ensuring optimal distribution of static loads.
Can natural stone be used to redevelop historic or protected buildings?
Absolutely. Our thirty years of experience allow us to liaise with designers and heritage agencies for philological restoration or energy efficiency improvements to historic, religious, or institutional buildings. Knowing how to integrate modern thermal insulation requirements with the use of traditional local stones (such as travertine or Santafiora stone) allows us to preserve the original architectural identity of the work.
How do ventilated stone facades behave in the event of thermal shock or expansion?
VM Group ventilated façade systems are engineered to allow complete freedom of thermal expansion of the individual elements. The joints between the panels and the flexible fixing points of the substructure absorb micrometric movements caused by seasonal and daily temperature variations. This prevents any cracking or crazing of the marble or granite, ensuring structural stability designed to withstand the centuries.
What maintenance does a ventilated natural stone facade require?
Extraordinary maintenance is virtually zero. Thanks to constant ventilation of the cavity, which prevents moisture buildup, and the absence of chemical sealants or glues between the joints (which tend to deteriorate), the building envelope retains its original beauty. Natural stone ages gracefully, increasing in value over time and requiring only periodic water cleaning for surfaces exposed to city smog.
Want to learn more about the technical characteristics of this material?
Visit our Ventilated Facade Guide.
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