Trelleborg sets new heights with silicone facade sealing solutions

The challenge

The construction of Jeddah Tower in Jeddah, Saudi Arabia, designed to become the tallest building in the world at over one kilometer in height, presented extraordinary engineering and facade sealing challenges.

A structure of this scale requires highly reliable sealing solutions capable of withstanding extreme environmental conditions, structural movement, and long-term durability requirements. In addition, the project demanded rapid development and manufacturing capabilities, including multiple new extrusion dies and the ability to deliver the first production shipment within a tight three-week timeframe.

The complexity of sealing a 252-floor skyscraper and ensuring consistent performance across the entire building envelope made this a technically demanding and high-profile project.

The Trelleborg solution

Trelleborg was selected to supply all silicone facade sealing profiles for the tower’s building envelope, delivering advanced sealing solutions specifically engineered for high-performance architectural facade systems.

The scope of supply includes approximately 1.5 million meters of extruded silicone profiles, utilizing more than 400,000 lbs of silicone material across nearly 30 different silicone and plastic components.

Products supplied

• Custom extruded silicone facade sealing profiles
• Multiple profile geometries developed specifically for the project
• Silicone and plastic sealing components for façade systems

  Key product features and technical requirements

• High-performance silicone materials designed for long-term durability
• Excellent resistance to extreme temperatures, UV exposure, and environmental stress
• Precision-engineered extrusion profiles for reliable facade sealing
• Consistent performance across a building exceeding 1 km in height

To meet the project’s requirements, Trelleborg developed several new extrusion dies and rapidly transitioned into production, ensuring timely delivery to support the tower’s construction schedule. The first deliveries were completed in Q3 2025.

Result & Value

Trelleborg’s sealing solutions play a critical role in protecting the building envelope of one of the most ambitious construction projects ever undertaken.

By supplying high-performance silicone facade profiles, Trelleborg helps ensure reliable sealing performance across the entire facade system, supporting the building’s long-term durability and environmental resistance.

Key benefits delivered

• Reliable facade sealing for a structure exceeding 1 km in height
• High durability and resistance to harsh environmental conditions
• Precision-engineered profiles enabling efficient facade installation
• Large-scale manufacturing capability to support complex global projects

The customer selected Trelleborg based on the company’s strong reputation for material expertise, manufacturing excellence, and reliability in demanding applications.