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








