Product description

Insulating loft spaces properly can be one of the most effective ways to keep heat in during winter and out during the summer. ROCKWOOL Thermal Insulation Roll is designed for home comfort and saving energy, especially for application in lofts. 


ROCKWOOL Thermal Insulation Roll is a medium density mineral wool insulation developed specifically for thermal performance in loft spaces. As a non-combustible material, it can withstand temperatures of up to 1000˚C. In the event of a fire this can provide extra time for occupants to escape and emergency services to contain the fire, minimising damage to the property and contents.

In addition to the thermal and fire proofing characteristics, the mineral wool insulation also enhances home comfort with its acoustic performance, absorbing sound and reducing vibrations. The density, non-directional fibre orientation and its open porous structure trap sound waves and prevent them travelling into the property.

Thermal Insulation Roll is supplied as a pre-split twin roll at 100mm and 200mm thicknesses, for quick and easy insulation. 100mm thickness for laying between joists, and 200mm to layer over joints to give a total recommended coverage of 300mm.



Euroclass A1 non-combustible

CE Marked


  • Supplied in a pre-split twin roll of 100/200mm thicknesses for fast and easy application to add up to the 300mm total coverage set out in Part L (Conservation of Fuel and Power) of the building regulations.
  • Excellent thermal insulation properties for home comfort that will also help reduce energy bills.
  • Non-combustible Euroclass A1 rating for fire performance, giving peace of mind that the loft insulation is safe and will reduce the risk of fire spread.
  • Mineral wool insulation offers high acoustic performance to reduce unwanted noise and create a more peaceful and relaxed environment.