Rockwool RockLap 25mm Pipe Insulation 34mm OD

Rockwool RockLap Pipe Insulation with 25mm thickness and 34mm outer diameter delivers pre-formed stone wool sections engineered for straightforward installation. Each section arrives pre-slit with factory-applied foil facing and self-adhesive lap, enabling quick application directly onto pipes and sealing with backing tape.

These pipe insulation sections excel at protecting heating and ventilation pipework across buildings, industrial plants, and comparable applications. Delivering superior thermal insulation performance consistently for more than 60 years, they perform reliably in varying climates and exposure scenarios.

Product specification

• Model: 25mm RockLap
• Thickness: 25mm
• Outer diameter: 34mm
• Length: 1000mm
• Density: 120kg/m3
• Thermal Conductivity: 0.033W/mK
• R-Value: 0.76m2K/W
• Pack quantity: 1
• Fire Rating (Reaction to Fire): A2L-s1, d0
• Resistance to fire: Tested to BS EN 1366-3 to provide up to 120 minutes fire resistance
• Brand: Rockwool

These cylindrical stone wool insulation segments arrive pre-slit for effortless fitting, complete with foil facing and integral self-adhesive lap design.

Key features include

• Non-combustible construction with Euroclass A2L-s1, d0 rating
• Reinforced aluminium foil facing delivering vapour-resistant protection
• Self-adhesive foil lap enabling rapid installation whilst reducing reliance on additional aluminium tape
• Certified to EN 1366-3 standards for penetration seal fire resistance, delivering up to EI 120 protection

Applications

Suitable for pipework carrying fluids between 0°C and 200°C, these sections provide proven fire stopping where steel and copper pipes penetrate fire-resistant walls and floors. Continuous installation through separating elements eliminates costly local removal or replacement work.

Fire performance

• Euroclass A2L -s1,d0. • Tested to EN 1366-3, the harmonised European standard for the fire resistance of penetration seals. • Provide up to 120 minutes* fire resistance integrity and insulation.

Water Resistance

Rockwool RockLap sections feature water-repellent properties. When deployed or stored in outdoor conditions, protective waterproof covering is recommended. For cold pipe insulation applications, seal joints with foil tape to prevent condensation formation.

Service Temperature

This 25mm Rockwool pipe insulation accommodates pipes operating between 0°C and 250°C. To preserve foil facing bond integrity, select thickness ensuring outer surface temperatures remain below 80°C.

Durability

Rockwool stone wool insulation delivers outstanding resilience, durability, and dimensional stability, preserving thickness and form indefinitely. Extensive testing confirms Rockwool maintains insulating properties and performance characteristics for 65+ years post-installation.

More Information on 25mm Rockwool RockLap Pipe Insulation ( 34mm Outer diameter )

• Manufacturer Link: 25mm Rockwool Rocklap
• Browse our comprehensive Rockwool Insulation range and refine by thickness or coverage using the left-hand filters. For product suitability advice on your specific project or bulk pricing enquiries, contact us via phone on +4402038839057, email sales@insulationbee, or Live Chat - Lowest UK Rockwool Insulation Prices.