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Rainclad+

Rainclad+

Customisable non-combustible stone wool insulation for ventilated rainscreen systems requiring project-specific density and thickness. Designed for complex façade construction, Rainclad+ enables architects and façade enginerrs o optimise thermal performance, structural rigidity, and fixing requirements to suite individual project conditions.

Project-specific

Custom density

 λ from 0.035 W/mK

Thermal conductivity

 Bespoke

Thickness to specification
Quotation

Description

Rainclad+ is an advanced, engineered version of Rainclad, developed for ventilated rainscreen facade systems that require project-specific performance and design flexibility. It allows full customisation of density and thickness, enabling architects and facade engineers to optimise insulation performance, structural requirements, and fixing strategies to suit individual project conditions.

Manufactured from natural volcanic basalt rock, Rainclad+ delivers excellent thermal insulation, fire resistance, and acoustic performance (-55-62 dB) within external wall constructions. Its robust mineral wool composition ensures long-term durability while maintaining vapour permeability throughout the building envelope.

With a declared thermal conductivity of λ = 0.035 W/mK (with project-specific variations available), Rainclad+ provides high-performance thermal efficiency for complex facade systems and bespoke architectural designs.

Rainclad+ is classified as Euroclass A1 (non-combustible) and is suitable for use in buildings of all heights, including high-rise developments, when installed within compliant facade systems in accordance with UK Building Regulations.

Typical applications

  • Ventilated rainscreen facade systems requiring engineered insulation performance
  • Facade systems requiring customised density or thickness
  • Complex facade geometries and bespoke building designs
  • High-rise buildings with defined structural or thermal performance requirements
  • Specialist facade systems requiring enhanced fixing performance or rigidity

Advantages

  • Non-combustible Euroclass A1 fire performance
  • Suitable for buildings of all heights, including high-rise developments
  • Customisable density and thickness for project-specific facade requirements
  • Optimised thermal, acoustic, and mechanical performance
  • High thermal efficiency, λ = 0.035 W/mK (project-specific variations available)
  • Vapour permeable, allows moisture to pass through the construction
  • Factory-applied hydrophobic treatment reduces water absorption during installation
  • Designed to support improved fixing performance and facade build-up flexibility
  • Excellent adaptability around brackets and facade supports for a continuous insulation layer
Looking for standard, off-the-shelf sizes? See Rainclad, available in fixed thicknesses from 50 mm to 225 mm.
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