Open area and wind load
A mesh screen presents less solid area than a solid panel, which reduces the wind load on the structure. It does not make the load zero, and the open area alone is not a structural calculation.
The facade engineer needs the cabinet dimensions, mounting points, weight and open-area ratio. Provide these as a package rather than a single percentage.
IP rating in context
An IP rating describes protection against dust and water under test conditions. It does not describe resistance to salt, pollution or constant condensation.
For coastal or industrial sites, the cabinet finish, connector sealing and drainage details matter as much as the IP number. Ask how water leaves the cabinet, not only whether it enters.
Thermal behaviour
Outdoor screens run through daily temperature swings. Cabinets, power supplies and cables expand and contract, and sealed enclosures can collect condensation without a pressure-equalising detail.
Plan ventilation or pressure equalisation with the enclosure design, and confirm the operating temperature range against the local climate.
Specification checklist
Before comparing suppliers, ask for the cabinet drawing, mounting detail, weight per square metre, power load, IP test report and recommended service method.
If a supplier cannot provide the mounting and service information, the screen is not yet a project specification. It is only a product photo.
- Open-area ratio and wind load data
- Cabinet drawing with fixing points
- IP test report and corrosion finish
- Service access and spare parts plan
