Pipe Insulation

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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.

Pipes require different performance levels to keep water hot or cold:

Warm water – insulation prevents heat loss, when water travels between a boiler or heating system to central heating units.
Cold water – insulation keeps the temperature low, ensuring it is delivered at its required temperature.
Rain/waste water – cold water piping insulation avoids water heating up.

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.

Relevant resources

Calculator and savings

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.

Our aluminium faced and aluminium laminate faced piping products are designed for hot and cold sections respectively. Both are available at a medium density (up to 100kg/m3).

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 (Legionella prevention or increased energy performance).
Environment conditions (humidity in % and temp in °C).

Consult our local market experts or calculators for more details.

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Why choose ROCKWOOL solutions?

Our stone wool pipe insulation material does not drop in performance levels over time.

We deliver a full range of solutions at all required thicknesses and dimensions, for both hot and cold water piping:

Hot (+12°C up to 150°C)
Cold (0°C up to 12°C) – but also suitable up to 250°C

Benefits of ROCKWOOL solutions include³:

Fire resilience
Acoustic absorption
Energy efficiency
Sustainability
Robustness
Temperature maintenance
Long-lasting performance (>75 years)

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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

The challenge⁴

Amager Bakke is an innovative energy-from-waste plant in Copenhagen, Denmark. It turns waste from around 700,000 households into electricity and heating. It also doubles as a leisure facility (with ski slope and climbing wall), as the builders were so confident of its green credentials.

However, to further reduce its emissions and create a safe working and leisure environment, it required high-performance insulation.

The solution

To achieve high energy efficiency levels, while also protecting workers and local residents from any risk of fire, ROCKWOOL insulation was installed around pipes and elsewhere within the facility.

The results

The properties of stone wool are helping the plant achieve its high environmental goals – improving the plant’s thermal efficiency, protecting workers from heat, and enhancing fire protection.

Find more case studies

Applications

Insulation

Hot Pipe Insulation

Quality hot pipe insulation can prevent heat loss in HVAC systems and offer fire protection for piping at high temperatures.

Insulation

Cold Pipe Insulation

Cold pipe insulation can help ensure drinking water and cool air in buildings is kept at the desired temperature.

Insulation

Ventilation Duct Insulation

Ventilation duct insulation helps maintain the operating temperature of HVAC systems and prevents energy loss. Find out more with ROCKWOOL solutions.

Installation

Our products can be installed onto various types of piping, with the thickness based on the temperature range of the operating unit.

Lamella and insulated matts are wrapped around the pipes, with the joints sealed by use of special aluminium tape.

To secure a proper and correct installation, an installation manual is provided (and available online), alongside onsite training and education where relevant.

We can also check during the installation process to make sure your HVAC pipe insulation is applied in the most effective manner.

Key tips⁵:

Use a registered installer – best performance is achieved through proper installation by a certified expert.
Check the instruction manual – for the best guidance on effectively insulating pipes, consult the supplied instructions before installation.
Seal insulation gaps – use special aluminium tape to avoid heat loss through unwanted gaps.

Inspiration and guides for professionals

Get 16 renovation cases

This case study bundle includes:

29 pages of our best 2018-19 projects
Acoustic renovation in both public buildings and private
Bringing new life into old buildings with facade panels
Improving fire safety and wellbeing in high-rises and historical buildings
Reducing noise and flooding with innovative stone wool solutions

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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Our products can be installed without the use of toxic adhesives or other chemical components.

As large buildings require a lot of energy to run and create a comfortable living or working environment, the use of ROCKWOOL solutions can lower energy consumption dramatically.

8 facts about the circularity of stone wool

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