Ventilation Duct Insulation

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Indoor temperature has a significant impact on the comfort and performance of a building’s occupants, whether in a commercial, residential or leisure environment.

Modern HVAC (heating, ventilation and air conditioning) units control the interior climate – and effective, high-quality duct insulation helps maintain desired airflow temperature throughout the building.

As the air in the ducts travels throughout the complete building, it passes many levels without heating or cooling available, causing an unwanted temperature rise or drop.

Quality insulation products prevent energy loss should cold air start to heat up, or hot air begin to cool down, when travelling from the unit to its destination. They help retain indoor comfort, without using excess energy to reheat or cool the air.

Learn more about ventilation insulation – and how ROCKWOOL solutions can boost the energy efficiency of your systems and buildings.

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Why do we need ventilation duct insulation?

HVAC units are designed to maximise comfort in large, modern constructions, including:

Industrial – energy plants, warehouses, data centres and other buildings where ventilation units are installed
Commercial – sports centres, offices and leisure
Residential – apartment blocks
Essential services – hospitals and airports

This can require a great deal of energy. But effective use of insulation results in lower consumption levels, leading to a more cost-efficient and environmentally sustainable constructions¹.

Our duct insulation products can be used for rectangular and circular ventilation ducts operating within a temperature range of 12°C to 250°C, or 0°C for Teclit Lamella Matts. They reduce the energy required to keep hot and cold air flowing at the optimum temperature.

As ducts are spread throughout buildings and transport hot air, this can also pose a fire risk. Insulating ventilation ducts with fire resilient stone wool improves fire safety.

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Calculator and savings

Insulation of ventilation ducts can lead to significant savings.

Generally, insulating HVAC applications can deliver a return on investment within three years – helping create a far more cost-efficient building.

The amount of insulation required depends on the size and shape of your ventilation ducts, the ideal temperature and other environmental factors. Speak to one of our experts at your local ROCKWOOL office for personalised help and advice.

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Why choose ROCKWOOL solutions?

Our range of round and rectangular duct insulation products are available to suit almost every kind of building and HVAC system. This includes aluminium faced lamella matts and insulated matts in a medium density (40-50kg/m3).

Stone wool is dimensionally stable – meaning our products don’t shrink or wear out under the influence of extreme temperatures. This means they maintain the same performance throughout the building’s lifetime. In addition, no joints are created by shrinking insulation over time, which could otherwise lead to thermal losses and inefficient operating units.

Due to the natural properties of stone wool, additional fire resilience and acoustic absorption properties help create a quieter and safer environment too.

Benefits of ROCKWOOL solutions include²:

Fire resilience
Temperature maintenance
Acoustic blocking
Thermal properties
Circularity

Find ROCKWOOL products

Due to optimal co-operation with production departments, we can guarantee the highest quality available. We understand our clients and markets and know which performance and requirements must be met.

Rob Kooiker

ROCKWOOL Group Product Manager

Applications

Insulation

Pipe Insulation

Pipe insulation can keep warm and cold water at its optimum temperature when transported through HVAC systems.

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

Voids And Fire Sealants

Seal voids effectively to avoid the risk of fire spread and improve building safety for occupants.

Insulation

Passive Fire Protection

Fire protection solutions can help secure occupant safety and raise buildings’ fire resilience.

Insulation

Fire Rated Ductwork

Fire rated ductwork reduces the serious risk of fire spread throughout buildings. Protect your construction and building occupants with ROCKWOOL solutions.

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Installation

Lamella and aluminium faced insulated matts are installed by wrapping around the ventilation ducts and sealing any joints with aluminium tape – which avoids the need for any toxic adhesives.

The difference between the lamella matts and aluminium faced insulated matts is the fibre orientation. With lamella matts the fibres are orientated vertically, for the others they’re orientated horizontally.

Key tips³:

Use a registered installer – professional training helps ensure the best installation to help your HVAC systems operate as efficiently as possible.
Choose the right product – duct insulation can be applied to rectangular and circular ducts, with varying thicknesses for different requirements.
Remember fire safety – if the ventilation duct must be insulated and also perform a certain level of fire resistance, have a look at our engineered, developed and tested solutions for fire rated ducts.

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

Our products are fully recyclable and can easily be removed and recycled or reused when a building reaches the end of its life. This prevents excess landfill⁴.

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Insulation of ductwork can lead to significant energy savings, improving the efficiency and cost-effectiveness of heating or cooling a building – and reducing the construction’s carbon footprint.

8 facts about the circularity of stone wool

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Worry about cost but remember the long-term view

The immediate finances that come with any renovation can be misleading. See how they help in the long run.

Financial support

Local tax incentives and schemes may be available to encourage the installation of insulation for energy efficiency purposes. Contact your local office for further information.

Find your local ROCKWOOL office