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British Gypsum Glasroc x Sheathing Board 12.5mm

£27.75 Excl. VAT

The Glasroc x sheathing board is ideal for use with thin-coat silicone render. Provides a high-strength and durable surface for steel frames prior to rendering.

  • Cladding
  • Panelling
  • Lightweight
  • Air tight performance
  • External boarding

Glasroc x sheathing board

British Gypsum Glasroc x Sheathing board is a lightweight alternative for protection on steel frames. It is a high-performance render carrier board providing an external façade before rendering; it is excellent when used in conjunction with silicone render. 

The sheathing board is easy to cut, fix, handle and install. Making it ideal and easy to use on-site as it can be tailored to the steel frame it is being fixed to. Due to the ease of installation, it can increase the speed at which the structure is built. 

The render carrier board provides an air-tight structure making it extremely weathertight and protect’s the frame and building against the elements. Also, the sheathing board is resistant to mould and UV light.


  • Six months’ weather protection
  • Excellent airtightness
  • Resists mould and UV light
  • Rated as Euroclass A1 ‘non-combustible’
  • Lightweight and easy to handle
  • Gets steel buildings finished faster

Technical Specification

  • Thickness: 12.5mm
  • Width: 1200mm
  • Length: 2400mm
  • Board Coverage: 2.88m2
  • Weight/m2: 10.9kg
  • Weight: 31.39kg
  • Thermal Conductivity: 0.186W/mK
  • Fire Rating (Reaction to Fire): A1(Non-combustible)


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