Rockwool RockLap 30mm Pipe Insulation 42mm OD

30mm Rockwool RockLap Pipe Insulation (42mm outer diameter) delivers pre-formed stone wool segments engineered for straightforward installation on pipework. Each section arrives pre-slit with factory-bonded foil facing and self-adhesive lap, allowing quick application and sealing with backing tape.

Ideal for protecting heating and ventilation pipes across residential, commercial, and industrial applications, this 30mm insulation has delivered reliable thermal performance across varied climates and conditions for over 60 years.

Product specification

• Model: 30mm RockLap
• Thickness: 30mm
• Outer diameter: 42mm
• 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

This cylindrical stone wool insulation comes pre-slit for rapid installation, featuring foil facing and integral self-adhesive lap for superior performance.

Key features include

• Non-combustible construction with Euroclass A2L-s1, d0 rating
• Reinforced aluminium foil facing that acts as a vapour-resistant barrier
• Self-adhesive foil lap enabling fast installation and reducing additional tape requirements
• Certified to EN 1366-3 standards for penetration seal fire resistance, delivering up to EI 120 protection

Applications

Suited for pipework operating between 0°C and 200°C, RockLap sections are specifically tested for fire stopping where steel and copper pipes pass through fire-resistant walls and floors. This capability allows continuous insulation through separating elements, reducing installation time and labour expenses by eliminating localised removal or replacement.

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

This 30mm Rockwool RockLap product offers water-repellent properties. When installed or stored outdoors, protection with a waterproof covering is recommended. For cold pipe insulation applications, seal joints using foil tape to prevent condensation buildup.

Service Temperature

The 30mm Rockwool pipe insulation performs effectively for pipes operating between 0°C and 250°C. To preserve foil facing bond strength, insulation thickness must ensure outer surface temperature remains below 80°C.

Durability

Rockwool stone wool insulation products demonstrate exceptional resilience and dimensional stability, preserving thickness and form indefinitely. Independent testing confirms Rockwool insulation maintains its thermal properties and performance characteristics for 65+ years post-installation.

More Information on 30mm Rockwool RockLap Pipe Insulation (42mm Outer diameter)

• Manufacturer Link: 30mm Rockwool Rocklap
• Browse our complete Rockwool Insulation range and refine by thickness or coverage using the left-hand filters. For project suitability advice or volume discount quotations, contact us via phone +4402038839057, email sales@insulationbee, or Live Chat - Competitive UK Rockwool Insulation Pricing.