Blauberg SonoFlex Thermally & Acoustically Insulated Flexible Ducting 200mm x 10m
Product Overview
The Blauberg SonoFlex Insulated Flexible Ducting is engineered to deliver superior
thermal insulation, condensation prevention, noise reduction and flexibility. Designed for
residential, commercial and industrial HVAC installations, it ensures long-lasting performance while
complying with UK Building Regulations. Available in multiple diameters and lengths, SonoFlex is the
professional choice for efficient ventilation solutions.
Condensation Control
Bathrooms, en-suites, kitchens and wet rooms are highly prone to condensation, leading to
damp, mould and poor indoor air quality. SonoFlex ducting, with enhanced insulation in
100mm, 125mm and 150mm sizes, effectively reduces condensation risk by stabilising air
temperature and limiting moisture build-up. This is particularly vital when ducting passes
through unheated lofts or roof spaces in the UK’s cool, damp climate.
Condensation Risk Comparison
| Dia / Length (mm / m) | Start Temp (°C) | End Temp (°C) | Relative Humidity (%) | Dew Point (°C) | Airflow (L/s) | Air Velocity (m/s) | Risk | Risk with SonoFlex |
|---|---|---|---|---|---|---|---|---|
| 100 / 1.5 | 21.0 | 15.0 | 80 | 17.4 | 15 | 1.91 | High | Low |
| 125 / 1.5 | 21.0 | 15.0 | 80 | 17.4 | 25 | 2.04 | High | Low |
| 150 / 1.5 | 21.0 | 15.0 | 80 | 17.4 | 100 | 5.7 | High | Low |
| 200 / 1.5 | 21.0 | 18.0 | 70 | 15.3 | 140 | 4.46 | Medium | Low |
| 250 / 1.5 | 21.0 | 18.0 | 70 | 15.3 | 180 | 3.67 | Medium | Low |
| 315 / 1.5 | 21.0 | 18.0 | 70 | 15.3 | 220 | 2.82 | Medium | Low |
Disclaimer: Figures are illustrative. Actual results depend on installation conditions.
Temperature Regulation
Featuring 25mm Rockwool insulation with a thermal conductivity of ?0.04 W/mK,
SonoFlex helps HVAC systems maintain stable air temperatures, reducing heat loss in winter
and cooling loss in summer. This improves overall energy efficiency and comfort in line with
UK regulations.
Temperature Deviation Performance
| Duct Size (mm) | Room Temp (°C) | Winter (10°C Ambient) | Summer (30°C Ambient) |
|---|---|---|---|
| 100 | 21.0 | -0.8 | -0.3 |
| 125 | 21.0 | -0.9 | -0.4 |
| 150 | 21.0 | -1.0 | -0.5 |
| 200 | 21.0 | -0.6 | -0.2 |
| 250 | 21.0 | -0.6 | -0.2 |
| 315 | 21.0 | -0.7 | -0.3 |
Disclaimer: Values are theoretical estimates based on thermal conductivity ?0.04 W/mK.
Noise Reduction
The natural acoustic properties of Rockwool insulation within SonoFlex effectively absorb
sound vibrations, significantly reducing ventilation system noise. This makes it ideal for
noise-sensitive environments such as bedrooms, offices, and commercial premises.
Noise Reduction Performance
| Dia / Length (mm / m) | Velocity (m/s) | Initial Noise (dBA) | After Duct (dBA) | Reduction (dBA) |
|---|---|---|---|---|
| 100 / 1.5 | 1.91 | 50 | 40 | 10 |
| 125 / 1.5 | 2.04 | 52 | 42 | 10 |
| 150 / 1.5 | 5.7 | 55 | 43 | 12 |
| 200 / 1.5 | 4.46 | 57 | 45 | 12 |
| 250 / 1.5 | 3.67 | 59 | 46 | 13 |
| 315 / 1.5 | 2.82 | 61 | 47 | 14 |
Disclaimer: Noise values are theoretical. Actual results depend on installation.
Technical Specifications
- Diameter Range: 100mm – 315mm (4″ – 12″)
- Temperature Range: -30°C to +140°C
- Thermal Conductivity: ?0.04 W/mK
- Air Velocity: Up to 25 m/s
- Max. Working Pressure: 2500 Pa positive
- Standard Lengths: 5m & 10m
- Colour: Metallic Silver
- Insulation: 25mm Rockwool
- Outer Jacket: Aluminium laminate
Applications
- Moisture Control: Ideal for bathrooms, kitchens and wet rooms to prevent condensation and mould growth.
- MVHR Systems: Minimises thermal bridging to enhance energy recovery efficiency.
- Air Conditioning: Maintains stable airflow temperature, improving system efficiency.
- General HVAC: Suitable for residential, commercial and industrial ventilation requiring insulation and noise control.
Why Choose SonoFlex?
With outstanding insulation, condensation resistance, and noise reduction,
Blauberg SonoFlex Insulated Flexible Ducting is the premium choice for
modern ventilation systems. It ensures compliance with UK regulations, delivers
long-term efficiency, and is designed to perform in the UK’s demanding climate.
Note: To ensure compliance with UK Building Regulations, flexible ducting runs should not exceed 1.5 metres.
Data Sheet: Download Here
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