RWRWA45

Rockwool RWA45 Insulation Slab 1200x600mm - Thermal & Fire UK

Rockwool RWA45 Insulation Slab - 1200mm x 600mm
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£45.33
As low as: Inc. Tax
£54.40

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Description

Rockwool RWA45 Insulation Slab

Rockwool RWA45 Insulation Slab - 1200mm x 600mm

The Rockwool RWA45 Insulation Slab, available at www.pipelagging.com, is a high-quality, resin-bonded stone wool insulation product designed for thermal, acoustic, and fire protection in various UK building applications. Certified to BS EN 13162:2012+A1:2015 (BSI Kitemark KM 06661), this versatile slab is ideal for walls, ceilings, floors, and roofs in residential, commercial, and institutional buildings, offering durability and compliance with UK Building Regulations.

Key Features

  • Thermal Efficiency: Achieves a thermal conductivity of 0.035 W/mK (EN 13162), reducing heat loss and improving energy efficiency in buildings, helping to lower fuel bills.
  • Acoustic Insulation: The dense, non-directional fibre structure traps sound waves and dampens vibrations, achieving up to 55 dB Rw in specific partition configurations, ideal for noise reduction in dwellings, schools, and hospitals.
  • Fire Safety: Euroclass A1 non-combustible (EN 13501-1), providing up to 60 minutes of fire resistance in certain applications, enhancing building safety without contributing to fire spread.
  • Water Repellent: Resists moisture ingress, reducing the risk of condensation, rot, and mould, ensuring long-term performance in various environments.
  • Sustainable and Durable: Made from recyclable stone wool, with proven durability of at least 65 years (IW Durability Project, 2016), maintaining performance without compression or degradation.
  • Facings Available: Optional aluminium foil, black tissue (60 gsm), or white tissue (100 gsm) facings for enhanced performance, subject to production compatibility and minimum order quantities.

Applications

Rockwool RWA45 is suitable for a variety of construction applications, ensuring compliance with UK regulations such as Approved Document E (sound insulation) and Approved Document B (fire safety):

  • Walls: Ideal for cavity walls, timber frame walls, steel frame party walls, and internal partitions, meeting acoustic requirements of 40-55 dB Rw for dwellings, schools, and hospitals.
  • Floors: Enhances thermal and acoustic performance in suspended timber or concrete floors.
  • Ceilings and Lofts: Prevents heat loss and improves soundproofing in residential and commercial buildings.
  • Roofs: Suitable for flat and pitched roofs, providing thermal insulation and fire protection.
  • Refurbishments: Upgrades existing solid masonry walls to meet party wall standards under Approved Document E Section 4, with pre-completion testing required.

Installation Guidelines

Rockwool RWA45 is easy to install, requiring no pinning or fixings due to its density and dimensional stability, ensuring a tight friction fit. Follow these guidelines for optimal performance:

  • Preparation: Ensure the area is clean, structurally sound, and free from moisture or defects. Ventilate the workspace and use appropriate PPE (gloves, long sleeves, face mask in unventilated areas, and goggles for overhead work).
  • Measuring and Cutting: Measure the internal aperture of the frame or joist accurately. Cut slabs using a serrated insulation saw or knife, adding 10mm to width and length for a snug fit.
  • Installation: Push the slab into the structure for a tight, gap-free fit. For specific applications like steel frame party walls, use 60mm RWA45 in the cavity and 75mm in the frame, with two layers of plasterboard (22 kg/m²) on each side.
  • Safety: Fibres may cause temporary skin itching; cover exposed skin and rinse in cold water before washing. Dispose of waste as non-hazardous (EWC 170604) per local regulations.

Technical Specifications

Property Specification
Dimensions 1200mm x 600mm (1000mm x 600mm for faced slabs)
Thickness Range 25mm to 230mm
Nominal Density 45 kg/m³
Thermal Conductivity 0.035 W/mK
Fire Classification Euroclass A1 (non-combustible)
Water Absorption Water-repellent (No Performance Determined for short/long-term absorption)
Water Vapour Transmission No Performance Determined
Durability Retains performance for at least 65 years

Safety and Handling

Rockwool RWA45 is safe to install and use, with no hazardous classifications under EU/UK REACH and CLP regulations. Key safety considerations include:

  • Health: Temporary itching may occur from fibre contact; cover skin and use PPE. If dust is inhaled, rinse the throat and rest. If irritated, flush eyes with water for 15 minutes, and seek medical attention if symptoms persist.
  • High Temperatures: When heated above 150°C, binder decomposition may release trace gases; ensure ventilation or use appropriate respirators.
  • Storage: Store in original packaging, keep dry, and protect from mechanical damage.
  • Disposal: Non-hazardous waste (EWC 170604); dispose in suitable containers, avoiding drains or sewers, per local landfill regulations.

Certifications and Standards

  • BSI Kitemark: Certified to BS EN 13162:2012+A1:2015 (KM 06661), ensuring quality and performance consistency.
  • EUCEB Certification: Bio-soluble fibres, compliant with Note Q of CLP Regulation 1272/2008, confirming non-carcinogenic properties.
  • Manufactured under: ISO 14001 (Environmental Management) and ISO 9001 (Quality Management) systems.
  • Building Regulations: Meets requirements of Approved Document E (sound insulation), Approved Document B (fire safety), and Approved Document L (energy efficiency).

Sustainability

Rockwool RWA45 supports sustainable building practices:

  • Recyclable: Made from abundant volcanic rock, the product is recyclable, and Rockwool offers recycling programs for installation waste.
  • Environmental Impact: Zero ozone depletion potential (ODP) and global warming potential (GWP). Production uses advanced filters and cleaning systems to minimise environmental impact.
  • Energy Savings: Reduces energy demand, lowering fuel bills and contributing to climate-resilient communities.

Why Choose Rockwool RWA45 from Pipelagging.com?

At www.pipelagging.com, we provide high-quality insulation solutions for UK customers. The Rockwool RWA45 Insulation Slab offers unmatched thermal, acoustic, and fire performance, backed by rigorous certifications and a trusted brand. Perfect for contractors, builders, and homeowners, this product ensures compliance with UK regulations and long-term durability. Order now for fast UK delivery, competitive pricing, and expert support from our team.

More Information

Product NameRockwool RWA45 Insulation Slab 1200x600mm - Thermal & Fire UK
SKURWRWA45
mpnRWA45
ManufacturerRockwool
Brand c2cRockwool

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