How much does it cost to seal up cable trays

The cost of sealing cable trays depends on the type of firestop system, cable tray size, and installation complexity, with modular firestop systems and intumescent pillows being common solutions.

Types of Cable Tray Sealing Systems

1. Modular Firestop Systems (e.g., FIRSTO) FIRSTO systems are designed for multi-cable and cable tray penetrations in fire-rated walls and floors. They are modular, easy to install, and allow for future cable additions or removals. These systems provide high fire and smoke protection and can withstand mechanical loads, making them suitable for industrial and commercial applications .
2. Intumescent Fireproof Pillows (e.g., AF Bags) AF Bags are certified under EN 1366-3 for up to EI 240 fire resistance. They consist of intumescent materials inside a non-combustible fiberglass casing and are suitable for small to large cable penetrations. They are easy to reposition and maintain, and their installation depth is typically 120 mm for cables up to 21 mm in diameter .
3. Preformed Firestop Blocks (e.g., CFS-BL) Preformed blocks or cushions are another option for sealing cable tray penetrations. They are available in various sizes and materials, and prices vary depending on the region and certification requirements .

Factors Affecting Cost

• Cable Tray Size and Number of Cables: Larger trays or multiple cables require more sealing material and labor.
• Fire Rating Requirements: Higher fire resistance (e.g., EI 240 vs. EI 120) increases material costs.
• Installation Complexity: Inaccessible or irregular penetrations may require more labor or specialized products.
• Product Type: Modular systems tend to be more expensive upfront but save time and labor, while pillows or blocks may be cheaper but require careful sizing and placement.
• Maintenance and Flexibility: Systems that allow easy cable addition or removal may have higher initial costs but reduce long-term labor expenses .

Cost Considerations

While exact prices are not publicly listed, modular systems like FIRSTO are generally higher in cost than simple intumescent pillows, but they offer time savings and flexibility. Preformed blocks vary widely in price depending on certification and supplier. Installation labor can also significantly affect the total cost, especially in large-scale projects.

Summary

The total cost of sealing cable trays is influenced by product choice, fire rating, tray size, and installation complexity. For budgeting purposes, it is recommended to contact suppliers directly for quotes based on your specific cable tray dimensions and fire protection requirements. Using modular systems may reduce long-term labor costs, while pillows or blocks may be more cost-effective for smaller or less complex installations .