Faced with extreme environments, complex projects, and diverse architectural demands, SunFrame continuously pushes boundaries through innovative curtain wall systems and precise engineering practice. Join us on a journey—from -50°C extreme cold certification, through smart energy-saving performance tests, to a case study in culturally integrated design.
In extremely cold regions such as Canada, Northern Europe and Central Asia, curtain wall systems must withstand the challenges of low temperatures of minus 50°C, strong wind loads and structural stress caused by thermal expansion and contraction. As an important entry specification for exterior maintenance structures of Canadian buildings, the CSA (Canadian Standards Association) standard sets strict requirements for the weather resistance, air tightness and structural stability of curtain wall systems.
SunFrame has passed the CSA standard door and window system certification and has a number of international authoritative certifications, including:
☞ AAMA (American Building Manufacturers Association) standards
☞ AS2047 & AS4284 (Australian building facade performance standards)
☞ ASTM E283 / E330 / E331 (North American common air tightness, water tightness, and wind pressure performance tests)
☞ ISO international standard system
Under the CSA standard framework, SunFrame curtain wall systems continue to benchmark the following key performance indicators during R&D and project implementation:
These standard verifications not only demonstrate SunFrame’s technical preparation for the high-latitude market in North America, but also enable us to provide compliant, safe and energy-saving curtain wall systems for Canada, northern Russia, Scandinavia and Central Asian countries.
In the 400-foot-high Tom Condos (Toronto) project, SunFrame provides a factory-prefabricated unitized curtain wall system that integrates Low E glass, automatic sunshade blinds, light sensors, and connects to the building energy system:
☞ Modular curtain wall units are pre-installed in the factory environment to ensure accurate size and sealing performance.
☞ The installation method helps improve on-site construction efficiency and reduce interference.
☞ Actual measured data shows:
This energy-saving performance is due to the combined effect of the unitized system’s airtightness, watertightness, Low E insulating glass, and natural light regulation of sunshade blinds. The final system U value reached 1.5W/(m²·K), the sound insulation performance was improved to 52dB, and the wind pressure resistance reached ±2.1kPa.
In this section, we selected two typical Canadian Aboriginal cultural center projects – Squamish Lil’wat Cultural Centre and Nk’Mip Desert Cultural Centre, to illustrate how curtain wall design is not just a building shell, but an important medium for conveying cultural connotations and strengthening regional spirit.
Design highlights:
Cultural narrative:
Ecological method:
Cultural Dialogue:
These two cases show that curtain walls are not only a carrier of building physical properties, but can also become an interface for cultural expression, ecological response and visual narrative. Through form, material, symbol and spatial strategy, curtain walls can deeply participate in the “cultural narrative” of buildings.
From enduring arctic extremes to enabling energy efficiency and embodying cultural heritage, SunFrame curtain wall systems reflect more than engineering—we tell stories. Backed by international certifications and proven performance across diverse climates and cultures, we are committed to building façades that protect, perform, and inspire.
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