What Is Thermofloc Insulation and How Is It Made?

Thermofloc insulation is made from 100% organic cellulose, which is derived from recycled newspaper sources. This environmentally friendly material is free from traditional fire retardants like borax or boric acid, instead utilising mineral fire retardant additives to meet safety standards.

The manufacturing process involves shredding newspapers into fibrous cellulose, then treating these fibres with minerals to enhance fire resistance. Mechanical refining ensures consistent fibre size and density, while quality-controlled compaction prepares the material for transport and installation. This process is energy-efficient and minimizes waste during production. The entire process uses low energy, reducing the carbon footprint compared to synthetic options. Designed for easy installation, Thermofloc employs specialised blowing machines that pneumatically fill cavities completely, providing a breathable, moisture-regulating, and long-lasting insulation solution suitable for various types of buildings across the UK.

Key Thermal Insulation Properties of Thermofloc

Thermofloc possesses a low thermal conductivity range, allowing it to effectively resist heat transfer and maintain stable indoor temperatures. The installation density plays a crucial role in its insulating capabilities, with higher density providing superior heat retention. Additionally, because it is made from newspaper, it is a natural insulator that contributes to a healthier indoor environment. These characteristics enhance energy efficiency, resulting in reduced heating expenses and a diminished environmental impact.

Thermal Conductivity Range

The thermal conductivity of Thermofloc insulation products typically ranges from 0.037 to 0.108 W/m·K, depending on the specific variant and application.

For instance, cellulose insulation has a low λD value between 0.037 and 0.040 W/m·K, making it highly effective for thermal insulation.

Pellets designed for floors have a higher conductivity at 0.108 W/m·K, offering added soundproofing benefits.

The product’s conductivity also increases slightly with density, from 0.037 W/m·K at lower densities (28–47 kg/m³) to 0.038 W/m·K at higher densities (48–60 kg/m³).

Despite these variations, Thermofloc maintains low conductivity levels across different densities and forms, ensuring consistent thermal performance.

This range of conductivity values demonstrates the versatility and adaptability of Thermofloc products for various building requirements. Such flexibility makes Thermofloc suitable for a wide range of building needs and reflects its commitment to energy efficiency in the UK market.

Installation Density Effects

Installing Thermofloc insulation at the correct density significantly influences its key properties, particularly its ability to provide effective thermal and sound insulation.

When installed at approximately 40 kg/m³, Thermofloc offers optimal soundproofing, reducing noise transmission between rooms and floors. If the density is too low, the material may settle over time, creating gaps that diminish insulation effectiveness.

Conversely, an excessively high density can complicate installation and reduce flexibility in filling voids. Proper density ensures that the material maintains its shape, prevents moisture accumulation, and remains durable over the long term. Optimal installation density also maximizes the product’s energy-saving benefits. Achieving the right installation density guarantees that Thermofloc can perform its full range of functions—delivering a quieter, more comfortable, and energy-efficient environment tailored for those who value quality and sustainability in the UK.

Energy Efficiency Benefits

Thermofloc’s high R-value performance makes it an effective thermal insulator, providing superior resistance to heat flow compared to many conventional materials. Its low lambda value enhances insulation effectiveness, helping to maintain stable indoor temperatures throughout the year. By minimising heat transfer through walls, roofs, and floors, Thermofloc reduces energy consumption for heating and cooling, resulting in lower utility bills. Its natural hygroscopic properties also help regulate moisture, preventing condensation and mould, which ensures insulation performance in humid conditions. The organic insulation material primarily made from recycled newspaper, it's eco-friendly and boasts low embodied energy. The material’s ability to block summer heat gain while retaining warmth in winter diminishes reliance on HVAC systems.

How to Install Thermofloc Insulation Effectively

To install Thermofloc insulation effectively, proper preparation is essential. The area should be cleared of debris and made accessible for either manual or machine-assisted installation. As Thermofloc is made from organic cellulose fibres, safety gear such as protective masks and eyewear is necessary during handling. Thermofloc can be installed manually or with specialist blowing machines. For cavity insulation, certified operators utilise blowing machines like the Thermoblow to fill hollow spaces evenly, ensuring proper compression. For loose-fill applications, tools such as trowels or brooms assist in levelling the material. Measuring tools are important to achieve the correct thickness and R-value. Care must be taken to hold the hose at the appropriate distance from the surface to prevent clumping. After installation, check for gaps or under-insulated spots, confirm clean-up, and verify adherence to local regulations.

Benefits of Thermofloc for Sound and Fire Protection

Thermofloc insulation provides significant advantages for both soundproofing and fire safety in buildings. Its natural cellulose fibres, combined with mineral fire retardants, create an effective barrier against noise and flames. The insulation’s dynamic stiffness values support excellent acoustic damping, achieving impact sound reduction of up to 25 dB, which makes spaces quieter and more comfortable. Furthermore, its fire-resistant properties are certified according to European standards, aiding in the slowing of flame spread and heat transfer. The installation process ensures complete cavity filling, enhancing both sound insulation and fire safety. Additionally, Cellulose insulation’s low thermal conductivity helps in maintaining consistent indoor temperatures, contributing to energy efficiency and comfort. The table below outlines the key features of Thermofloc:

Environmental Impact and Sustainability of Thermofloc

Thermofloc utilises recycled newspaper as its primary raw material, aiding in waste reduction and diminishing environmental impact. Its production necessitates minimal energy, which further decreases the greenhouse gas emissions linked to manufacturing. These attributes position Thermofloc as a sustainable option, particularly when taking into account its contribution to waste reduction and energy efficiency. The product’s environmental credentials are further supported by independent certifications such as the Environmental Product Declaration (EPD) and Natureplus certification, ensuring its sustainable and health-conscious profile.

Recycled Material Benefits

Using recycled newspaper material in insulation offers significant environmental benefits.

Thermofloc primarily utilises recycled, unmixed newspaper, which helps reduce landfill waste and decreases the need for raw forestry resources. Incorporating a mineral fire retardant ensures safety without compromising sustainability.

Recycling newspapers for cellulose insulation diverts this waste from traditional disposal streams, lowering environmental impact. Additionally, using waste paper as raw material naturally reduces the product’s carbon footprint compared to virgin fibre options.

Recycled newspaper material has a substantially lower embodied energy than virgin materials, further enhancing its eco-friendly profile.

Benefits include:

• Reducing landfill waste and preserving natural resources
• Lowering the carbon footprint with recycled materials
• Supporting sustainability through eco-friendly certifications
• Promoting healthier indoor environments with non-toxic insulation

Low Processing Energy

The manufacturing process of Thermofloc insulation is notable for its relatively low energy requirements compared to other insulation materials.

It's produced from unmixed newspaper, which helps to minimise energy consumption during production. The process avoids chemical additives, further reducing energy use compared to synthetic insulations.

The paper is shredded and milled into elastic cellulose fibres using low thermal input, making the process more sustainable. The product carries the Natureplus® mark, signifying eco-friendly manufacturing standards.

Furthermore, the installation method with THERMOBLOW machines minimises waste and energy use, efficiently filling cavities. Its excellent thermal performance reduces heating and cooling energy demands, thereby supporting sustainability.

Physical Characteristics and Handling of Thermofloc

The physical characteristics and handling process of Thermofloc insulation centre on its unique material properties and practical application methods.

Made from recycled newspaper, it features a cellulose base combined with mineral fire retardants, ensuring sustainability and fire safety. The material is available as loose-fill in 12 kg bags, making it easy to transport and install using specialised blowing machines that pneumatically fill cavities with minimal waste.

Its elastic and flexible fibres allow it to fit into irregular spaces and cracks seamlessly. Handling requires trained personnel to operate the equipment properly, sealing the blown-in insulation with adhesive tape afterwards.

Thermofloc maintains low compressibility and offers excellent impact sound reduction. Its breathability and stability make it ideal for a variety of building components, providing reliable insulation with ease.

Cost and Practical Advantages of Using Thermofloc

Thermofloc insulation offers several practical advantages that make it a popular choice for building projects in the UK.

It can be installed manually without the need for expensive blowing machines, making it versatile and accessible for a variety of spaces. Its excellent thermal conductivity of 0.039 W/mK helps conserve energy by maintaining consistent temperatures throughout a building.

Made from 100% recycled newspaper, Thermofloc is eco-friendly, supporting sustainability initiatives. It also holds quality certifications such as CE and natureplus®, ensuring high standards are met.

Its diffusion-open layer allows moisture to escape, thereby reducing the risk of mould. The installation process generates virtually no waste, and using specialised equipment enhances efficiency.

Conclusion

Thermofloc insulation offers an effective, eco-friendly solution for thermal and sound insulation in buildings across the UK. Its manufacturing process produces a lightweight, fire-resistant material that is easy to install and handle. With benefits such as improved energy efficiency, fire safety, and environmental sustainability, Thermofloc is a practical choice for various projects. Its cost-effectiveness and versatile properties make it a reliable option for those seeking durable insulation without compromising on safety or environmental impact.