High-performance warm edge technology for efficient insulating glass production.
Swisspacer warm edge spacer systems are a critical component in high-performance insulating glass units. By significantly reducing thermal bridging at the glazing edge, they help optimize whole-window Uw values and improve the overall energy efficiency of insulating glass constructions.
For IGU manufacturers, this means delivering thermally optimized units that meet increasingly stringent building regulations across Europe and international markets - without compromising production efficiency.
Beyond thermal performance, Swisspacer supports consistent production quality. Its material properties enable stable processing and precise frame geometry in insulating glass manufacturing.
Caluwin: Compare spacer performance in insulating glass units
Caluwin is our calculation tool for evaluating insulating glass configurations with different spacer bar systems. It enables quick comparison of Ψg values, glazing-edge performance and interior surface temperatures to assess condensation risk and optimize overall thermal performance.
Results can be documented for customer specifications, tender documentation and compliance with international energy-related building requirements.
Calumen: Advanced glazing configuration analysis
For comprehensive glazing performance analysis, Calumen - the Saint-Gobain Glass calculation platform — allows evaluation of glass build-ups including Ug value, solar factor (g-value), light transmission and façade performance.
By combining Calumen glazing simulations with Swisspacer edge performance data from Caluwin, IGU manufacturers can provide a complete and reliable performance assessment - from center-of-glass to glazing edge.
Use verified spacer bar performance data
With Swisspacer warm edge technology, you can measurably improve the linear thermal transmittance (Ψg) of your insulating glass units compared to conventional aluminum spacer bars. Verified Ψg values and BF data sheets provide reliable thermal calculations in accordance with EN ISO 10077 and European energy regulations. This enables window and façade manufacturers to achieve improved Uw values without modifying frame systems — strengthening your position as a high-performance IGU supplier in competitive global markets.
Lower carbon footprint at component level
Environmental requirements increasingly extend beyond thermal values to whole-building life cycle assessment.
With verified Environmental Product Declarations (EPDs) for Swisspacer spacer systems and Georgian bars, we provide reliable environmental data for LCA calculations and sustainable building certifications such as LEED, BREEAM and DGNB.
Compared to conventional aluminum spacer systems, Swisspacer contributes to improved CO₂ performance at component level — supporting more sustainable insulating glass solutions.
For projects with elevated design requirements, Swisspacer Ultimate | Nyxé combines an all-black aesthetic with recycled content, supporting both architectural demands and sustainability targets.
Improve indoor comfort with optimized edge performance
By maintaining higher interior surface temperatures at the glass edge, Swisspacer reduces the risk of condensation formation and mold growth.
A study by the Passive House Institute confirms that the choice of spacer significantly influences thermal comfort and condensation behavior - key performance aspects for high-quality insulating glass units.
Process reliability and production efficiency
Swisspacer spacer systems are designed for compatibility with modern insulating glass production lines. The material properties support precise cutting, accurate corner connections and stable frame geometry — contributing to consistent production quality.
Reliable processing reduces scrap rates and supports predictable manufacturing workflows.
Automation that keeps your production line in pole position
Frame:racer is an automation service by Swisspacer for fast, precise spacer frame assembly and filling. It brings the next level of automation to insulating glass production - improving efficiency, process stability and quality while reducing manual handling.
Pressure compensation for stable insulating glass units
Swisspacer Air features an integrated pressure-equalization system inside the insulating glass unit. It helps balance pressure differences caused by altitude changes, transport and varying climates — reducing the risk of pane deflection and unnecessary load on the edge seal.
Ideal for:
High-altitude applications
Export and long-distance transport
Modular and mobile buildings
Large-format glazing
No changes to your IGU production workflow required.
eLement, Athens, Greece: The LEED-certified office building in Athens surrounds a Mediterranean garden and, with its green roof terraces, appears very natural. The high energy efficiency of the surrounding glass facades is ensured by insulating glazing with Swisspacer Ultimate warm edge spacer bars.
Finstral supplied IGUs for the Santner Pass hut in South Tyrol.
Authentic reconstruction meets modern technology: With Retro78 windows from PaX and Swisspacer Ultimate, a listed building in Viersen was renovated for energy efficiency – combining historic charm with contemporary thermal insulation.
Swisspacer Advance
The warm edge spacer delivers high thermal efficiency, improving Uw values at the glass edge while ensuring excellent gas retention and durability. It integrates easily into standard IGU production lines and is available in up to 17 colors, offering flexibility in design and application.
Swisspacer Ultimate
The warm edge spacer delivers excellent thermal performance with optimized Uw values at the glass edge, combined with superior moisture control and durability. Designed for easy integration into IGU production lines, it supports high‑end applications and is available in up to 17 colors.
Swisspacer Ultimate Pro
Swisspacer Ultimate Pro delivers top thermal performance with optimized Uw values and strong moisture protection. Its robust design ensures long‑term stability and easy integration into IGU production. Available in three colors, it offers design flexibility and consistently high quality.
Swisspacer Georgian Bars
Swisspacer Georgian Bars combine elegant design with high energy efficiency. Made from proven Swisspacer material and available in 17 colours, they enhance window aesthetics while maintaining Uw values – unlike conventional aluminium bars.
Swisspacer Air
Swisspacer Air equalises pressure inside insulating glass units, reducing stress from altitude and climate changes. It minimises the risk of glass breakage and ensures safe transport, installation, durability and CE compliance.
