125mm Unilin Stonewool SW/RS Rainscreen Cladding

Unilin provides a range of non-combustible stonewool insulation products with Euroclass 'A1' certification, delivering outstanding fire safety where it matters most. Designed for ventilated facades, rainscreens, framing, and closed systems such as curtain walling, this 125mm Stonewool SW/RS Rainscreen Cladding insulation combines strength with consistency. The high-density construction ensures excellent durability throughout construction, particularly when mechanically fixing to substrates.

Product Details

Brand: Unilin ®

Model: 125mm Unilin SW/RS Rainscreen Cladding insulation

Thickness: 125mm

Length: 1200mm

Width: 600mm

Board Coverage: 0.72m²

Pack Coverage: 1.44m2

Pack Quantity: 2

Pack Weight: 22kg

Dimensions: 1,200mm x 600mm x 125mm

Density: 45kg/m3

Type: Non Combustible A1 Euroclass Stonewool Insulation Slab

Profile: Square Edge

R-Value: 3.55 m2K/W

Thermal Conductivity: 0.035W/mK

Fire Classification: Euroclass A1

Finish: Unfaced

Application Temperature: from +5 °C to +25 °C

Shipping method: Articulated Vehicle ǀ Courier

Application: Insulation for Ventilated Rainscreen Cladding

Features: Non-combustible A1 stone wool insulation slab

Advantages:

1. Achieves Euroclass A1 Fire classification.
2. Possesses a robust high-density composition.
3. Enhances acoustic insulation performance.
4. Appropriate for application in high-rise buildings.
5. 125mm stonewool Rainscreen Cladding Insulation

About

Rainscreen cladding at 125mm thickness is an essential element in contemporary building construction. It functions as a protective barrier against weather exposure whilst supporting energy efficiency and thermal comfort inside the building. This specialist insulation sits behind the exterior cladding, establishing a ventilated air gap between the cladding and the main structure.

A key advantage of 125mm rainscreen cladding insulation is its superior moisture control capability. The ventilated cavity allows air movement between the cladding and insulation, preventing moisture accumulation and reducing risks of mould, decay, and structural damage. This moisture management feature significantly extends the durability of the building envelope.

Installation

1. Unilin 125mm Stonewool panels arrive in polythene-wrapped packs suitable for temporary open storage. For longer-term storage, keep packs raised and sheltered from weather. When specified, breather membranes provide additional protection. The high-density panels are resilient and can tolerate reasonable exposure during installation, though protection during construction is recommended where possible.
2. Key considerations when installing 125mm Unilin SW/RS panels:
3. These panels are easy to work with and can be cut using a fine-tooth saw or sharp knife. Accurate fitting to adjoining boards and around openings is vital for maximum thermal performance.
4. Tight joints between adjacent boards maintain continuity in the insulation layer.
5. During installation, arrange boards in a break-bonded pattern with all joints firmly closed.
6. Metal and polypropylene 'mushroom' type fixings with a minimum diameter of 125mm will secure the panels until the main cladding is fitted.
7. Account for all penetrations through the insulation layer in thermal calculations, particularly at floor junctions and openings.

Handling, Cutting, and Storage:

1. Unilin Rainscreen Cladding Insulation should be positioned on a clean, flat surface elevated from ground level and protected by a cover.
2. Polythene wrapping alone does not provide sufficient protection against weather exposure.
3. Take care to prevent damage to the insulation during storage and throughout the construction phase.
4. Always use appropriate personal protective equipment (PPE) when handling the insulation board.

Certification and Standards:

1. BBA Certification Number: 10/4803.
2. Compliance with BS EN ISO 9001 Quality Management System.
3. Adherence to BS EN ISO 14001 Environmental Management System.
4. Conformance with BS EN 13166 standards.

Info

Browse our Unilin range and filter by thickness or coverage on the left-hand side. For advice on product suitability for your project or to request a quantity discount quotation, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation board Prices.