Rockwool RockLap 20mm Pipe Insulation 34mm OD

20mm Rockwool RockLap Pipe Insulation ( 34mm Outer diameter ) delivers pre-formed stone wool insulation segments engineered for straightforward installation. Each section arrives pre-slit with factory-applied foil facing and self-adhesive lap, enabling rapid application directly onto pipes and sealing with backing tape.

This Pipe Insulation solution excels at protecting heating and ventilation pipework across buildings, industrial plants, and comparable installations. Delivering dependable thermal insulation performance across varied climates and exposure scenarios, Rockwool has proven its effectiveness over 60 years.

Product specification

• Model: 20mm RockLap
• Thickness: 20mm
• 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 sections feature pre-slit construction with integrated foil facing and self-adhesive lap for efficient installation.

Key features include

• Non-combustible with Euroclass A2L-s1, d0 rating
• Reinforced aluminium foil facing delivering a vapour-resistant barrier
• Self-adhesive foil lap enabling swift installation, reducing reliance on additional aluminium tape
• EN 1366-3 tested for fire resistance at penetration seals, delivering up to EI 120 protection

Applications

Ideal for pipework operating between 0°C and 200°C, these sections are specifically tested for fire stopping where steel and copper pipes penetrate fire-resistant walls and floors. Continuous installation through separating elements eliminates costly local removal or replacement requirements.

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

These Rockwool RockLap sections offer water-repellent properties. When deployed or kept outdoors, protective waterproof covering is recommended. For cold pipe insulation applications, seal joints with foil tape to prevent condensation formation.

Service Temperature

Suitable for pipes operating between 0°C and 250°C, this 20mm Rockwool insulation maintains foil facing bond strength when outer surface temperature remains below 80°C.

Durability

Rockwool stone wool insulation demonstrates exceptional resilience, durability, and dimensional stability, preserving thickness and form indefinitely. Performance testing confirms Rockwool retains its insulating capabilities and characteristics for over 65 years post-installation.

More Information on 20mm Rockwool RockLap Pipe Insulation ( 34mm Outer diameter )

• Manufaturer Link: 20mm Rockwool Rocklap
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