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Pipe Insulation

As hot or cold water has quite a long way to travel throughout a building, it is crucial it maintains its required temperature as much as possible. During this process, it passes many spaces where additional heating or cooling is unavailable, meaning non-insulated pipes can heat up or cool down – with all the negative consequences that can cause.

In any case, effective insulation means HVAC systems don’t have to work as hard to maintain the operating temperature of the unit, thereby reducing energy consumption.

Discover more about HVAC pipe insulation, and how ROCKWOOL applications can benefit you today.

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Why do we need pipe insulation?

Heating and cooling buildings accounts for around half of all energy consumption1. Reducing the required energy demand can cut both operating costs and carbon emissions for many large constructions – such as airports, apartment blocks, warehouses and schools. 

HVAC pipe insulation improves the operating efficiency of heating and cooling units to keep temperatures comfortable with minimum energy usage.

The fire resilience properties of our stone wool insulation are also important – especially for hot pipes – as they can run throughout a building at high temperatures.

Acoustic absorption also limits the impact from sometimes-noisy pipes and HVAC systems on building occupants, minimising daily disruption.

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Applying insulation for cold pipes can lead to energy savings of up to 50 percent, while insulation for hot piping can result in energy savings up to 20 percent2. There can be differences between countries, but in general pipe insulation can create a return on investment within three years.

Insulation thickness is determined by the:

  • Temperature range at which the HVAC unit operates.
  • Medium temperature of the piping or duct.
  • Additional measurements to take into the calculation 
  • Environment conditions (humidity in % and temp in °C).


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ROCKWOOL products are dimensionally stable. They do not shrink or wear out under the influence of temperature, and they maintain the same level of performance. We use all our knowledge to produce and provide our customers with the best possible solution.

Rob Kooiker

ROCKWOOL Group Product Manager

Case studies

See how ROCKWOOL release the natural power of stone to enrich modern living.

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Sustainability and energy efficiency

We achieve results through the use of stone wool, which means all our pipe products are fully recyclable. They can be removed from a building at the end of its life and used again – providing circularity and preventing landfill6.

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Local support

Contact ROCKWOOL local offices for more information.

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