Rockwool Rocklap 1m Foil Backed Pipe Insulation Lagging-89mm-30mm-Wall

ROCKWOOL RockLap H&V Pipe Insulation - 30mm x 89mm

The ROCKWOOL RockLap H&V Pipe Insulation (30mm thickness, 89mm bore) is a premium stone wool insulation solution designed for thermal and acoustic insulation of heating, ventilation, and air-conditioning (HVAC) pipework. Engineered for pipes operating between 0°C and 250°C, this product ensures energy efficiency, fire safety, and durability for commercial and industrial applications.

Key Features

• Superior Thermal Performance: With thermal conductivity ranging from 0.034 W/mK at 10°C to 0.056 W/mK at 150°C, RockLap H&V Pipe Sections minimise heat loss, reducing energy costs and CO₂ emissions in compliance with BS 5422:2023.
• Non-Combustible: Rated Euroclass A2-s1, d0, offering exceptional fire safety. Tested to EN 1366-3, it provides up to 120 minutes of fire resistance for penetration seals, ideal for steel and copper pipes passing through fire-resistant walls and floors.
• Acoustic Insulation: Reduces noise from HVAC systems, enhancing comfort in buildings and plants.
• Easy Installation: Pre-slit with a factory-applied reinforced aluminium foil facing and integral self-adhesive lap, ensuring quick and secure fitting. Joints can be sealed with 75mm aluminium foil tape for a robust vapour barrier.
• Vapour Resistance: The foil facing acts as a vapour-resistant barrier, preventing condensation on cold pipes when joints are sealed with foil tape.
• Water Repellent: Repels water, but requires a waterproof covering for outdoor use to maintain performance.
• Durability: Dimensionally stable and resilient, ROCKWOOL stone wool retains its insulation properties for over 65 years, as proven in tests.
• Biological Resistance: Inert and rot-proof, it does not support fungi, mould, bacteria, or vermin growth.

Applications

ROCKWOOL RockLap H&V Pipe Sections are ideal for insulating pipework in HVAC systems, including heating, ventilation, and air-conditioning applications in buildings and industrial plants. They are suitable for both hot and cold pipes, providing condensation control, heat loss prevention, and fire stopping where pipes penetrate fire-resistant structures. This product is authorised for use in London Underground (LUL) surface and sub-surface premises, as listed on the LUL Approved Product Register.

Standards and Approvals

Certified to BS EN 14303 and compliant with BS 3958-4 for bonded preformed stone wool pipe sections, RockLap H&V Pipe Sections meet stringent UK standards. They align with BS 5422:2023 for thermal insulation and BS 5970 for water vapour permeance, ensuring compliance with Building Regulations for thermal and fire performance.

Installation Guidelines

Installation is straightforward: place the pre-slit section around the pipe, peel the protective tape from the self-adhesive lap, and press it smoothly over the joint. Seal all joints between sections with approved 75mm aluminium foil tape to maintain the vapour barrier. For external applications, refer to the ROCKWOOL HVAC Specification Detail Guide for appropriate finishes. The product is easy to cut with a sharp knife for custom fitting.

Sustainability

ROCKWOOL stone wool is net carbon negative, saving over 100 times more energy during its lifetime than is emitted during production. It is recyclable, has no degradation in quality, and contains no ozone-depleting or global warming potential gases. ROCKWOOL’s commitment to sustainability is backed by third-party verified environmental reports, available at rockwool.com/uk/sustainability.

Technical Specifications

• Thickness: 30mm
• Bore Diameter: 89mm
• Nominal Density: ≥100 kg/m³
• Service Temperature: 0°C to 250°C (foil facing bond strength limited to 80°C outer surface temperature)
• Thermal Conductivity: 0.034 W/mK (10°C), 0.039 W/mK (50°C), 0.048 W/mK (100°C), 0.056 W/mK (150°C)
• Fire Rating: Euroclass A2-s1, d0
• Standards: BS EN 14303, BS 3958-4, BS 5422:2023, BS 5970

Why Choose ROCKWOOL RockLap H&V Pipe Insulation?

With its energy efficiency, fire safety, and ease of installation, ROCKWOOL RockLap H&V Pipe Insulation is the go-to choice for professionals seeking reliable, long-lasting pipe lagging. Backed by ROCKWOOL’s decades of expertise and sustainable manufacturing, this product delivers exceptional performance for UK HVAC systems.