Explore our state-of-the-art building envelope components and high-temperature insulation barriers.
An authoritative analysis of regulatory trends, structural evolution, and material physics shaping the global energy retrofit industry.
Across the globe, building envelope regulations are undergoing the most drastic transformation in a generation. Driven by net-zero emission mandates, carbon-neutral policies, and rising utility overheads, developers can no longer rely on thick, inefficient layers of traditional expanded polystyrene (EPS) or mineral wool. The modern construction framework calls for ultra-thin, highly robust materials capable of delivering exceptional U-values without consuming valuable structural footprints.
Regulatory frameworks such as the European Union’s Energy Performance of Buildings Directive (EPBD) and ASHRAE 90.1 in the United States demand envelope performance targets that are near-impossible to meet with standard insulations without sacrificing floor area. Vacuum Insulation Panels (VIPs) represent a crucial technological breakthrough to fulfill these demands.
Traditional insulation materials require thicknesses upwards of 150mm to 200mm to achieve modern energy standards. In contrast, advanced fumed silica vacuum insulation boards provide equivalent thermal resistance at just 20mm to 30mm, preserving exterior architectural aesthetics and maximizing internal usable spaces.
While the initial CapEx for vacuum solutions may exceed that of mineral wool, the total cost of ownership (TCO) is substantially lower. When factoring in structural footprint reclamation, minimized thermal bridge remediation, and heating/cooling load savings, VIP systems deliver superior returns on investment.
| Insulation Board Type | Thermal Conductivity (λ - W/m·K) | Required Thickness (for U-value 0.15 W/m²K) | Fire Classification (EN 13501-1) | Key Vulnerabilities |
|---|---|---|---|---|
| Fumed Silica VIP (Zerothermo) | 0.004 - 0.005 | ~30 mm | Class A (Non-combustible core) | Cannot be punctured or cut on-site |
| Polyurethane (PU / PIR) | 0.022 - 0.028 | ~160 mm | Class B / C (Combustible) | Dehydration and off-gassing degradation |
| Extruded Polystyrene (XPS) | 0.030 - 0.035 | ~220 mm | Class E (Highly Flammable) | High environmental impact; flame propagation |
| Mineral Stone Wool | 0.038 - 0.044 | ~280 mm | Class A1 | Hydrophilic, heavy structural load requirements |
Precision OEM and ODM manufacturing capability tailored to specialized applications, from electric vehicles to skyscraper building wraps.
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View More +Exploring the thermodynamics of gas exclusion, core nano-porosity, and the engineering behind a 50-year service life.
Thermal conduction in insulation operates via three mechanisms: solid conduction, gaseous conduction, and radiative heat transfer. By evacuating the internal chamber of the envelope panel, gaseous conduction is almost entirely eliminated, allowing the system to achieve thermal conductivity values as low as 0.004 W/m·K.
Within a vacuum environment, the mean free path of gas molecules becomes significantly larger than the average cell size of the core. As a result, collisions between gas molecules are replaced by collisions with the cell walls, nullifying convective heat pathways inside the panel.
Our fumed silica cores boast an incredibly small pore structure (usually in the range of 10 to 100 nm). Because of this ultra-fine porosity, fumed silica VIPs maintain high thermal resistance even if the internal vacuum level degrades slightly over time, unlike fiberglass alternatives which fail rapidly under minor pressure changes.
To assure a structural lifecycle spanning over 50 years, our manufacturing incorporates specialized gas and water-vapor getters. These elements chemically bind invading moisture or air molecules, ensuring the panel core remains under vacuum throughout its operational lifespan.
Zerothermo Technology Co., Ltd., a subsidiary of CBVAC Group and a national high-tech enterprise, is headquartered in the Beijing Economic-Technological Development Area with its production base located in Nanchong City, Sichuan Province. This facility stands as one of China’s largest comprehensive production centers for vacuum technology application products.
Special sizes (beyond the range of ANSI/ASME/DIN and other standards) are produced according to customers' drawings or technical parameters.
square, oval or other special shaped flanges. - Oversize/small diameter: such as diameter over 60 inches or micro precision flanges.
Special sizes (beyond the range of ANSI/ASME/DIN and other standards) are produced according to customers' drawings or technical parameters.
Bridging the gap between raw manufacturing capabilities and future zero-carbon urban spaces.
The future of external wall insulation is not merely about increasing thermal resistance; it is about intelligence, integration, and environmental lifecycle responsibility. Our technical roadmap aims to embed smart sensor technologies and develop fully circular bio-core substrates.
Integration of ultra-thin RFID and pressure sensors inside external wall vacuum insulation layers. This allows engineers to assess structural vacuum health dynamically over decades without invasive inspections.
Transitioning fumed silica synthesis to utilize organic, agricultural silicon-byproducts. This dramatically reduces the initial carbon footprint of panel production, matching strict circular economy guidelines.
Collaborating with major industrial prefabricated wall developers to produce factory-integrated facade envelopes that do not require external scaffolding or dangerous on-site handling procedures.
Providing high-efficiency thermal insulation solutions for building envelope systems through innovative products such as vacuum insulation panels and vacuum insulated glass, empowering - the construction sector to reduce carbon emissions and achieve carbon neutrality.
Providing high-efficiency thermal insulation solutions for building envelope systems through innovative products such as vacuum insulation panels and vacuum insulated glass, empowering - the construction sector to reduce carbon emissions and achieve carbon neutrality.02
Providing high-efficiency thermal insulation solutions for building envelope systems through innovative products such as vacuum insulation panels and vacuum insulated glass, empowering - the construction sector to reduce carbon emissions and achieve carbon neutrality.03
Providing high-efficiency thermal insulation solutions for building envelope systems through innovative products such as vacuum insulation panels and vacuum insulated glass, empowering - the construction sector to reduce carbon emissions and achieve carbon neutrality.03
Committed to supporting China’s “dual-carbon” goals, Zerothermo Technology drives high-quality development of new quality productivity while promoting sustainable industrial advancement
Common engineering, installation, and manufacturing inquiries resolved by our technical directors.
We offer a one-stop vacuum insulation board solution. Contact us for a solution.
Discover our specialized product portfolio including tempered vacuum glass and custom cold chain insulation boards.
