What international standards and certifications must a Curtain Wall System comply with globally?

Specifying a metal curtain wall system for international or Middle East and Central Asia projects demands compliance with a set of recognized standards and certifications that verify structural, thermal, acoustic, water and air performance, and fire safety. Widely referenced international standards include EN (European Norms) such as EN 13830 for curtain wall product standards, EN 12154/12155 for air and water tightness tests, and EN 1991-1 (Eurocode 1) for wind actions. North American projects often rely on ASTM standards—ASTM E283 (air leakage), ASTM E331 (static water penetration), ASTM E330 (structural wind), and AAMA standards (AAMA 501 for performance verification). ISO standards (e.g., ISO 140 for acoustics, ISO 9001 for factory quality management) and ISO 14001 for environmental management are frequently requested by owners pursuing sustainability goals. For fire performance, systems must meet regional codes such as NFPA standards or local Gulf fire codes; fire-rated spandrel and compartmentation details may require UL or FM approvals depending on client needs. In the Gulf and Central Asian markets — including Dubai, Doha, Astana (Nur-Sultan), and Tashkent — project specifications commonly combine EN or ASTM test evidence with GCC or national conformity assessments; some jurisdictions also require third-party factory inspections and on-site witnessed testing. Certifications such as CE marking (for applicable EU markets), ETL/UL labeling (where fire/health/safety applies), and third-party performance verification from accredited labs strengthen EEAT for product claims. Finally, ISO 9001 factory certification, documented QA/QC procedures, and documented material traceability for aluminum alloys and fasteners are essential to demonstrate consistent production quality for international clients.