Glass Mineral Wool - Thermo-teK RL Pro Alu




Glass Mineral Wool


Thermo-teK RL Pro Alu is a non-combustible, Glass Mineral Wool roll with optional foil facing, for use in the thermal insulation of square and rectangular ductwork. 


  • ECOSE® technology

  • Non-combustible

  • Flexible, strong design

  • Tear-resistant, strong aluminium facing

  • Easy to handle



Thickness (mm)Thermal Conductivity (W/mK)R-Value (M²K/W)Euroclass Reaction to Fire ClassificationLength (mm)Width (mm)Area per roll (m²)Quantity Per PackArea Per Pack (M²)Packs Per PalletArea Per Pallet (m²)
250.0330.75A2 s1,d018000120021.6121.618388.8
400.0331.2A2 s1,d012000120014.4114.418259.2
500.0331.5A2 s1,d09000120010.8110.818194.4


Eurofins Gold
EN 15804

Declaration of Performance

Click the button below to view our Declaration of Performance


File Size
File Type

July 2018


0.12 MB


December 2018


0.3 MB


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Additional Product Information

ECOSE® Technology

ECOSE® Technology is our revolutionary sustainable bio-based binder used in the manufacture of all of our glass mineral wool products, and the majority of our rock mineral wool products. invented nearly 10 years ago, it is not only unique, but very much central to our sustainability strategy.  Our ECOSE® Technology is present in Thermo-teK RL Pro Alu and is just another key benefit of our products.

ECOSE® Technology has 5 key benefits

  • A natural binder
  • A lower embodied energy
  • Proven durability
  • Optimum indoor air comfort
  • Easy to handle

We care for the people who make our products, the people who use them and the world we all depend on.

 Whilst we are dedicated to supplying sustainable high performance insulation solutions for enhanced energy efficiency in buildings, we also continually strive for improvements in our manufacturing and supply chain operations so to improve quality and minimise our impact on the environment. All Knauf Insulation production locations have state-of-the-art manufacturing equipment and meet the highest quality standards as well as they are supported by an ongoing research and development program. All of our products including Thermo-teK RL Pro Alu are sustainably manufactured.

At Knauf Insulation, we have 7 key sustainability considerations:

  • to conserve natural resources
  • to reduce the evironmental effects of our own processes
  • Treating people fairly, along the supply chain
  • Delivering our products efficiently
  • Building a comfortable and healthy indoor environment
  • Performance reporting
  • Recognition