Insulation plays an important role in improving the energy efficiency and thermal performance of a building throughout its lifespan. But, how long does insulation maintain its impact – and how can we measure its durability?
The durability and longevity of insulation depend on the material specified. ROCKWOOL stone wool insulation, for example, has proven to retain its thermal, mechanical, and fire performance characteristics for at least 65 years*.
In practice this means that ROCKWOOL stone wool insulation provides thermal benefits long into a building’s lifespan, reducing the need for costly maintenance and remedial works. In this ROCKWOOL Technical Bulletin, learn how durability is defined for building insulation – and examine the test evidence supporting the lifespan of ROCKWOOL stone wool insulation.
*Testing conducted at the Danish Technological Institute (DTI) in 2023 using a 65-year-old ROCKWOOL stone wool sample recovered during the renovation of Copenhagen Airport hangar 4.
