SonoFlex Insulated Flexible Duct – Superior Thermal & Acoustic Insulation

Blauberg SonoFlex Insulated Flexible Ducting

Blauberg SonoFlex Insulated Flexible Duct is the ideal solution for modern ventilation systems, offering superior thermal insulation, condensation control, noise reduction, and flexibility. Designed for efficiency and durability, SonoFlex is perfect for a variety of HVAC applications, including residential, commercial, and industrial installations. Available in multiple sizes and lengths, it meets all relevant UK building regulations, ensuring top performance and compliance.

Using SonoFlex Insulated Flexible Ducting to Control Condensation

Blauberg SonoFlex Insulated Flexible Ducting is specifically designed to reduce the risk of condensation in ventilation systems, which is crucial for maintaining a healthy and comfortable home environment. Areas like toilets, bathrooms, en-suites, and wet rooms, condensation can be a major concern. These spaces are prone to high humidity levels, which can lead to mould growth, poor air quality, and even structural damage if not properly managed.

Using SonoFlex ducting in your ventilation system, especially the smaller sizes such as 100mm, 125mm, and 150mm, helps to significantly lower these risks. The higher levels of insulation help your ventilation system effectively manages moisture, preventing condensation from forming. This not only protects your home from the harmful effects of dampness but also ensures a cleaner, healthier atmosphere in the most moisture-prone areas of your home.

Condensation Risk Comparison Table

The chart below is designed to show how likely it is for condensation to form inside ventilation ducts under different conditions. 

It shows that using SonoFlex significantly lowers the risk of condensation, making your ventilation system less susceptible to mould and damp. This is particularly important when ventilation passes through unheated areas like lofts or roof spaces to the outside, where temperature differences are common.

To ensure optimal performance and compliance with building regulations, the chart is based on a maximum duct length of 1.5 metres.

Disclaimer: The figures provided in the table below are for illustrative purposes only. Actual performance may vary depending on specific installation conditions.

Given the British climate, where cool and damp conditions often prevail, the use of insulated ducting like SonoFlex becomes even more critical to managing condensation risks effectively, especially in areas like bathrooms, kitchens and wetrooms.

Using SonoFlex Flexible Insulated Ducting to Regulate Temperature

SonoFlex Insulated Flexible Ducting is designed with 25mm Rockwool insulation, known for its outstanding thermal performance and flame retardent properties. With a thermal conductivity of ≤0.04 W/mK, it meets UK building regulations, making it an excellent choice for maintaining consistent air temperatures within your HVAC system. 

This insulation effectively reduces heat loss or gain, which is particularly crucial in the British climate where temperature fluctuations can impact energy efficiency. Insulated flexible ducting like SonoFlex plays a vital role in keeping your indoor environment stable and comfortable.

Temerature Regulation Table

This table illustrates the heat retention performance of SonoFlex Insulated Flexible Ducting across different duct sizes. It shows how effectively the ducting maintains a consistent room temperature of 21°C over a 1.5-metre length under varying seasonal conditions. The table provides the temperature deviations during winter (with an ambient temperature of 10°C) and summer (with an ambient temperature of 30°C).

Negative values indicate the small amount of heat lost in winter or coolness lost in summer, demonstrating the ducting’s efficiency in minimising temperature changes, which is essential for maintaining energy efficiency and comfort in HVAC systems.

Disclaimer: The heat retention values provided are estimated based on theoretical calculations using a thermal conductivity of ≤0.04 W/mK. Actual performance may vary depending on specific installation conditions, airflow, and environmental factors.

Using SonoFlex Insulated Flexible Ducting to Control Noise

Blauberg SonoFlex Insulated Flexible Ducting is engineered not only to provide superior thermal insulation and effective condensation control but also to significantly reduce noise levels within your ventilation system. The materials used in SonoFlex, particularly the Rockwool insulation, have a natural noise-dampening effect, absorbing sound vibrations and preventing them from traveling through the ductwork.

This makes SonoFlex an ideal choice for both residential and commercial applications where maintaining a quiet environment is essential. Whether in homes, offices, or other spaces where noise control is a priority, SonoFlex is an essential addition to your ventilation system, contributing to a more comfortable and peaceful atmosphere.

Noise Reduction Table

This chart illustrates how effective the SonoFlex duct is at reducing noise as air travels through your ventilation system. 

The chart shows the noise levels before and after the air passes through the SonoFlex duct. It demonstrates that the duct can reduce noise by a significant amount, making it ideal for noise sensitive areas. This means that with SonoFlex, you not only get better thermal insulation but also lower noise levels in your ventilation system.

Disclaimer: The noise reduction values provided are based on theoretical conditions. Actual results may vary depending on the specific installation and environmental factors.

Technical Data

• Diameter Range: 100mm to 315mm (4" - 12").
• Temperature Range: From -30°C to +140°C.
• Thermal Conductivity: ≤0.04 W/mK.
• Air Velocity: Up to 25 m/s maximum.
• Working Pressure: Maximum 2500 Pa positive.
• Standard Lengths: Suppled in 5 & 10-metre.
• Colour: Metallic Silver.
• Insulation Material: 25mm Rockwool.
• Outer Jacket Material: Aluminium laminate.

Applications for SonoFlex Insulated Flexible Ducting

Controlling Condensation and Mould Prevention:

• Intermittent Extractor Fans: SonoFlex is ideal for use with bathroom extractors and inline fans, which operate periodically to remove moisture and maintain air quality. The insulation helps to prevent condensation build-up, which is crucial for preserving the efficiency of these systems, particularly in humid environments like bathrooms.
• Purge Ventilation: SonoFlex is well-suited for systems designed to quickly ventilate spaces, ensuring that excess humidity is effectively expelled. This is particularly beneficial in areas that require rapid and efficient air exchange, helping to reduce the risk of mould and dampness.
• Continuous Extract Ventilation: SonoFlex is highly effective in systems such as Mechanical Extract Ventilation (MEV) and Decentralised Mechanical Extract Ventilation (dMEV), which continuously extract air to maintain indoor air quality. The insulation supports these systems by minimising condensation and ensuring consistent performance.
• Mechanical Ventilation with Heat Recovery (MVHR) Systems: In MVHR systems, SonoFlex plays a key role in reducing thermal bridging. By insulating the ducting, it helps to maintain the efficiency of the system, ensuring that heat recovery is maximised, which is essential for energy conservation.
• Air Conditioning Systems: SonoFlex helps to maintain consistent temperatures within air conditioning systems by reducing unwanted heat gain or loss through the ducting. This ensures that the system operates efficiently, providing consistent climate control.

Intermittent and Continual Extract Ventilation

Blauberg SonoFlex Insulated Flexible Duct is particularly well-suited for a variety of domestic ventilation applications. It is especially effective in roof and loft spaces, where temperature fluctuations and higher humidity levels can lead to condensation. Given the British climate’s tendency towards cool and damp conditions, using insulated flexible ducting like SonoFlex is essential for preventing condensation and maintaining a comfortable indoor environment.

Mechanical Ventilation with Heat Recovery (MVHR) Systems

In MVHR systems, SonoFlex Insulated Flexible Ducting is crucial. It connects heat recovery units to external environments, enabling energy-efficient ventilation while reducing thermal bridging. Minimising thermal bridging is key to maintaining the overall efficiency of the system, which helps to lower energy costs and supports sustainability, aligning with the UK’s energy efficiency goals.

General HVAC Installations

SonoFlex Insulated Flexible Duct is suitable for a wide range of Heating, Ventilation, and Air Conditioning (HVAC) applications across residential, commercial, and industrial settings. It is particularly beneficial in environments where thermal insulation, noise reduction, and condensation management are essential. The ducting supports a stable indoor climate, reduces energy loss, and minimises noise transmission, making it a reliable choice for installations requiring long-term performance and compliance with regulations.

Why Choose Blauberg SonoFlex Insulated Flexible Ducting?

Blauberg SonoFlex Insulated Flexible Duct offers a comprehensive solution for those seeking efficiency, durability, and performance in their ventilation systems. Whether installing a new HVAC system or upgrading an existing one, SonoFlex duct delivers superior insulation, condensation control, noise reduction, and temperature savings, making it the preferred choice for professionals in the ventilation trade.

Note 1: The British climate, with its cool, damp conditions, underscores the importance of using high-quality insulated flexible ducting like SonoFlex, which helps maintain energy efficiency and prevents condensation in such environments.

It is important to note that any flexible ducting, including SonoFlex, should only be used in lengths of up to 1.5 metres. This ensures compliance with Building Regulations and demonstrates the use of best practices.