Rockwool RockLap Pipe Insulation with 25mm thickness and 54mm outer diameter comprises factory-formed stone wool segments engineered for straightforward application. Each section arrives pre-slit with an integrated foil facing and self-adhesive lap, enabling rapid installation directly onto pipes and securing with backing tape.
These pipe insulation sections excel at protecting heating and ventilation pipework across residential, commercial, and industrial settings. Delivering dependable thermal insulation performance, Rockwool has maintained its reputation for over 60 years across varying climates and demanding conditions.
These cylindrical stone wool insulation segments arrive pre-slit for convenient fitting and feature a foil facing with integral self-adhesive lap technology.
RockLap H&V Pipe Sections perform effectively for pipework between 0°C and 200°C. They undergo rigorous testing for fire stopping where steel and copper pipes breach fire-resistant walls and floors. This certification confirms the insulation can extend uninterrupted through the separating element, reducing installation time and labour expenses by eliminating the requirement for localised removal or refitting of pipe insulation.
• 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.
Rockwool RockLap H&V Pipe Sections demonstrate water-repellent properties. When positioned or kept outdoors, protective waterproof covering is advisable. For cold pipe insulation, seal joints with foil tape to guard against condensation formation.
This 25mm Rockwool pipe insulation suits pipework operating from 0°C to 250°C. Appropriate insulation thickness preserves foil facing bond strength by keeping outer surface temperatures below 80°C.
Rockwool stone wool insulation delivers exceptional resilience, longevity, and dimensional consistency, preserving thickness and form indefinitely. Performance testing demonstrates Rockwool insulation sustains its thermal properties and performance characteristics for 65+ years following installation.








