URSA 10 Glass Wool Loft Roll

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URSA 10 Loft Roll

URSA 10 Loft Roll is a premium quality, unfaced glass mineral wool insulation product. The URSA loft rolls are lightweight, non-combustible and offer excellent thermal performance when used as loft insulation in cold pitched roofs. URSA 10 offers the flexibility of being used either unsplit or between joists and achieve the highest fire classification A1.

Suitable for use in newbuild and refurbishment projects, the URSA 10 loft insulation easy upgrades the thermal performance of the property, providing a cost-effective solution to reducing heat loss and lowering U-values.

Technical Specification

  • Composition: unfaced glass mineral wool insulation
  • Thermal Conductivity: 0.044W/(m2K)
  • Reaction to Fire: Class A1
  • Size of rolls: 2 x 570mm rolls
  • Thickness: 100mm, 150mm, 170mm, 200mm
  • Density: 10kg/m3

Coverage per pack

Thickness (mm) m2 per pack
100mm 12.54
150mm 8.55
170mm 7.41
200mm 6.27


URSA 10 Loft Roll should be installed in accordance with the manufacturer’s installation guidelines – these should cover design and all aspects of the application of the insulation.


Shelf life: please see the manufacturer’s date of expiry. Keep in a dry place, in the original packaging. Avoid excess heat or UV light exposure.


100mm – 12.54m2, 150mm – 8.55m2, 170mm – 7.41m2, 200mm – 6.27m2


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