There are three products within the Rockwool Fire Duct System; Fire Duct Slab & Fire Duct Section, each specially designed for different applications. Fire Duct Slab is composed of high density insulation slab which is faced with reinforced aluminium foil. Fire Duct Section is made up of high density pre-formed pipe section faced with reinforced aluminium foil. 

The alternative Rockwool solutions are designed for circular ductwork; Fire Duct Section for ducts of a diameter between 60mm and 610mm.

The Rockwool Fire Duct Systems provide comprehensive performance for stability, integrity and insulation, for all ducts passing through fire-rated walls or floors.

Quick Links - Click To Jump To Section:

   
• Features & Benefits
• Applications

Features & Benefits

• Specified with confidence
• Quick and easy to install
• ½, 1, 1½ and 2hour fire protection for stability, integrity and insulation
• Choice of fixing options
• Single layer, enabling verification of system installation
• Space efficient, non-brittle, strong and safe
• Multi-role insulation: fire protection, acoustic and thermal
• Can be installed on standard DW144/42 ductwork
• Rockwool stone wool insulation products have been proven in service for over 60 years, in a wide range of climates and degrees of exposure, and will generally perform effectively for the lifetime of the building, plant or structure
• Naturally inert and rot-proof material that does not encourage or support the growth of fungi, moulds or bacteria, or offer sustenance to insects or vermin
• Chemically compatible with all types of pipes, ducts, equipment and fittings
• Fully certified to BS 476–24 (duct types A and B)
• Fire Duct Slab achieves non-combustibility: Class A1 to BS EN 13501-1
• Fire Duct Section achieves Non-combustibility: Class A2 to BS EN 13501-1 
• Authorised for use in LUL surface and sub-surface premises when installed in accordance with the product data sheet

Applications

For detailed application instructions please see the product data sheet and installation guide.

• Circular steel ducts of between 60mm and 356mm diameter may be protected using Fire Duct Section. Fire Duct Section must be glued with Rockwool Firepro Glue at the joints and in the grooves. Steel bands or wires must be fitted circumferentially to the system at 300mm nominal centres to hold all joints and grooves tightly closed while the glue cures
• Where required, cover strips and bearer protection pieces are to be cut from Fire Duct Section of the appropriate diameter. The foil covering is to be removed from the area of Fire Duct Section immediately beneath the cover strips prior to gluing into position and securing with steel nails or pins
• All joints are to be securely taped with 75mm wide plain soft aluminium foil self-adhesive tape (Idenden type T303, or similar and approved) to maintain a continuous vapour barrier

IMPORTANT FIRE PRODUCTS NOTICE: The information displayed on this website should be used as a guide ONLY and our Technical Department should be contacted to obtain a tailored specification and any advice necessary before you place an order for fire protection products. Fire protection products are non-returnable except in accordance with Condition 8 of the Terms and Conditions and should be applied only by an individual with the necessary expertise and experience. We will not be held liable for any resulting damage to property, human life or monetary costs incurred due to the incorrect specification you have prepared or use of fire protection products caused by your negligence, including your failure to have contacted us to obtain the relevant advice/specification.