Technical Guides
Sourcing International Fenestration for US Projects
A window system that performs well in its market of manufacture is not automatically a system a US project team can approve. Approval in the United States rests on documentation written against the standards named in the project specification, and on evidence that belongs to the exact configuration being bought.
Approval is decided by the specification and the jurisdiction
US fenestration requirements are set by the project documents and the authority having jurisdiction, and they vary by building type, exposure and location. A coastal high-rise, an inland commercial fit-out and a residential development do not carry the same demands.
Establish which standards, ratings and approvals the project actually names before shortlisting manufacturers. Reliance treats those requirements as the selection criteria rather than checking them after a supplier has been chosen. Where a manufacturer cannot evidence what the project names, that is a sourcing decision, not a paperwork problem to solve later.
Evidence has to describe the configuration being supplied
Test reports and certifications apply to a specific frame, size, glass make-up and opening type. An otherwise valid report for an adjacent configuration is not evidence for the one on the order. This is the most common reason internationally sourced fenestration stalls at submittal.
- —Confirm the report covers the specified size, frame depth and opening configuration
- —Confirm the glass build-up tested matches the build-up quoted
- —Confirm the report is current and issued by a body the project will accept
- —Confirm the manufacturer has produced the configuration in production, not only as a test specimen
Terminology and drawing conventions
US project teams work in aluminum, curtain wall, storefront, jobsite and submittal; many overseas manufacturers document in aluminium, EN terminology and metric detail. Translating between the two is part of technical coordination, not an administrative afterthought — mismatched terminology hides real differences in frame depth, thermal break and anchorage.
Programme, freight and site sequence
Sea freight to US ports, customs clearance and inland transport all sit between production completion and the jobsite. Fenestration should be sequenced against the installation programme, and packing specified for long-haul transit and site handling rather than for general cargo.