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Knauf  |  SKU: 48514798944603

Knauf Rocksilk Rainscreen OSCB25 - All Thicknesses


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Email: sales@nationalinsulationsupplies.com

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Delivery & Shipping

Standard: 5-10 Working Day Delivery

Express: Same/Next Day Delivery - subject to availability, please call: 020 3004 5451

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Product Datasheets

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Things you should know about this product!

  • This product is sold by the pack
  • The amount of barriers in a pack depends on the thickness
  • This product is available in the following thicknesses: 100mm-125mm, 126mm-150mm, 151mm-175mm, 176mm-200mm, 201mm-225mm, 226mm-250mm, 251mm-275mm, 276mm-300mm, 301mm-325mm, 326mm-350mm, 351mm-375mm, 376mm-400mm, 401mm-425mm, 426mm-450mm

Description

Knauf Rocksilk RainScreen OSCB25 is a horizontal cavity barrier made from rock mineral wool, featuring a shrink-wrapped design with a reactive intumescent strip. It is designed for use in ventilated cavities up to 450mm. When used as part of a system with Rocksilk RainScreen Slabs, it provides fire resistance for up to 90 minutes for both integrity and insulation (EI120).

Specifications

  • Material type
    Rock mineral wool

Key Features

  • Integral Component in Tested Systems: Integral part of tested systems offering fire resistance for up to 120 minutes for both integrity and insulation (EI120).
  • Standard Inclusion of Fixing Bracket: Includes a fixing bracket as standard equipment.
  • Intumescent Strip Reacts to Fire: Features a reactive intumescent strip that expands in case of fire to fill the remaining cavity.
  • Horizontal Application with Cladding: Designed for horizontal applications alongside an external cladding.

Where to use

Rainscreen Facade Insulation: Knauf Rocksilk Rainscreen OSCB25 is specifically designed for rainscreen facade insulation, serving as an effective cavity barrier to provide robust fire protection. It helps prevent the spread of flames and smoke through the facade, enhancing building safety. Additionally, it offers thermal insulation, aiding in reducing heat loss and improving energy efficiency. The slab also provides good acoustic insulation, minimising noise transmission, and its water-resistant properties protect the building from moisture ingress.

Frequently asked questions

How does Knauf Rocksilk Rainscreen OSCB25 work? - This insulation board works by providing a thermal barrier that helps regulate the building's temperature, reducing heat loss in winter and heat gain in summer. Its dense composition also helps absorb sound and improve acoustic comfort, while its non-combustible nature enhances fire safety.
Where can Knauf Rocksilk Rainscreen OSCB25 be used? - Knauf Rocksilk Rainscreen OSCB25 is specifically designed for use in external wall systems, including cavity walls and rainscreen cladding systems. It is suitable for both new build and refurbishment projects in a variety of applications, such as residential buildings, commercial properties, and public sector projects like schools and hospitals.
What are the acoustic performance benefits of Knauf Rocksilk Rainscreen OSCB25? - The insulation board provides effective sound absorption, reducing external noise and improving indoor acoustic comfort.
Is Knauf Rocksilk Rainscreen OSCB25 fire resistant?
- Yes, Rocksilk Rainscreen OSCB25 is classified as non-combustible and meets rigorous fire safety standards. It does not contribute to the spread of fire, significantly enhancing the fire safety of the building.

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