How do metal wall panel joints and substructures resist sandstorms and heavy winds in the Gulf region?

In the Gulf region, metal façades must withstand extreme wind loads and sandstorm abrasion. Resistance starts with a robust substructure: specify structurally-rated mullions, rails, and clip systems sized for regional wind pressures (including local code wind maps for Dubai, Doha, and Abu Dhabi) and anchored to primary structure with redundancy for uplift and cyclic loading. Panel joints should use engineered interlock profiles, concealed fastening where possible, and high-performance gaskets and seals capable of maintaining sealing under cyclic movement and sand abrasion. Overlapping joints (shiplap or tongue-and-groove) combined with second-line waterproofing (back-panels or internal seals) reduce the chance of sand being driven into cavity interfaces. Fasteners and clips must be made from corrosion- and abrasion-resistant materials (stainless steel or coated metals) and designed to allow thermal movement without loosening—slotted holes and floating clips are common solutions. For sand abrasion, choose thicker faces or abrasion-tolerant finishes (hard-anodize, durable fluoropolymers), and employ sacrificial external trim at likely impact zones. Rainscreen cavities should include insect and sand mesh at intake/exhaust points while allowing drainage and ventilation. Regular maintenance access and replaceable panels or trims allow for economical repair after severe events. Combining structural calculation, tested joint systems, and durable materials ensures metal wall systems hold up to Gulf sandstorms and heavy winds while maintaining weather-tightness and façade integrity.