NBTC’s physical anti-drone barrier systems are developed for critical-infrastructure applications in accordance with the approved project design basis, client specifications, applicable local authority requirements and the site security risk assessment. The supporting steelwork, foundations, connections and access provisions shall be engineered for the defined site conditions and agreed load cases, using an internationally recognised structural design basis such as ANSI/AISC 360-22 or EN 1993 (Eurocode 3) where specified by the contract.

Fabrication, welding and inspection shall be controlled through approved drawings, material traceability, inspection and test plans, and qualified welding procedures. Where applicable to the approved material and project scope, structural-steel welding may be executed in accordance with AWS D1.1/D1.1M. Hot-dip galvanised fabricated steel components may be specified in accordance with ISO 1461:2022, while alternative protective coating systems shall follow the approved project coating specification.

The anti-drone barrier is a physical-hardening measure within a wider site security strategy. Final barrier geometry, mesh type, support arrangement, stand-off distance, drone threat definition, structural response, performance validation, testing and acceptance criteria shall be agreed individually for each project with the client, responsible engineer and relevant authority. No universal interception or asset-protection performance rating is implied unless it is demonstrated and accepted for the specific installed configuration.