Rockwool Rocklap Foil Backed Pipe Insulation Lagging – 1m
Rockwool Rocklap Foil Backed Pipe Insulation Lagging – 1m
Rockwool Rocklap Foil Backed Pipe Insulation Lagging — 1m
Rockwool Rocklap is the UK's leading mineral wool pipe insulation, trusted by M&E contractors, heating engineers and specifiers across commercial, industrial and district heating applications. Each 1m section features a factory-applied aluminium foil facing with a self-adhesive lap for fast, clean installation — no tools or additional adhesive required.
As an A1 non-combustible product, Rocklap is the specified choice wherever fire resistance is critical, and its ability to perform continuously at temperatures up to 250°C makes it suitable for steam, high-temperature heating and process pipework that elastomeric foam products cannot handle.
Key Benefits
- A1 non-combustible — Euroclass A1 fire rating, will not contribute to fire spread. Essential for commercial and industrial installations
- High temperature rated — suitable for continuous operating temperatures from 0°C to +250°C, covering steam, HVAC and hot water services
- Foil facing with self-adhesive lap — aluminium foil jacket reflects radiant heat, provides a clean professional finish and seals without additional tape or adhesive
- Wide size range — pipe outside diameters from 15mm to 219mm, wall thicknesses from 20mm to 70mm
- Dimensionally stable — mineral wool will not shrink, settle or degrade at high operating temperatures
- Moisture resistant — maintains thermal performance in damp plant room conditions
Technical Specifications
- Material: Stone wool (mineral wool) with aluminium foil facing and self-adhesive overlap
- Length: 1m per section
- Pipe outside diameter: 15, 22, 27, 28, 35, 42, 48, 54, 60, 67, 76, 89, 108, 114, 127, 140, 169, 219mm
- Insulation thickness: 20, 25, 30, 40, 50, 60, 70mm
- Operating temperature: 0°C to +250°C
- Fire classification: Euroclass A1 non-combustible
- Facing: Aluminium foil with self-adhesive overlap
Wall Thickness Selection Guide
- 20mm wall — Light commercial heating and hot water pipework, frost protection
- 25mm wall — Standard commercial specification, meets Part L and CIBSE Guide C for most heating applications
- 30mm wall — Enhanced performance for high-temperature heating mains and steam pipework
- 40mm wall — Industrial process pipework and high-temperature steam systems
- 50mm wall — Maximum performance for demanding industrial and process applications
- 60–70mm wall — Heavy industrial, power station and refinery pipework
Shop by Pipe Size
15mm | 22mm | 28mm | 35mm | 42mm | 48mm | 54mm | 60mm | 67mm | 76mm | 89mm | 114mm
Applications
- Commercial and district heating mains and primary circuits
- Steam pipework and high-temperature process pipework
- HVAC and building services pipework
- Plant room and boiler house pipework
- Industrial process and chilled water pipework
- Fire-rated pipework penetrations and compartmentation
Complete Your Installation
- Aluminium Foil Tape — Seal butt joints and ensure a continuous vapour barrier across the full pipe run
- Rockwool Rocklap Pipe Supports — Foil Faced — Matching foil-faced mineral wool pipe supports for a consistent, professional finish at pipe fixings
- Rubber & Standard Pipe Clamps — Secure your insulated pipework with the correct pipe clamps for commercial and industrial installations
For technical advice on wall thickness selection or compliance with Part L, CIBSE Guide C or project specifications, call our team on 0161 775 1190 (Mon–Fri 8am–4pm).