How the sustainable Acoustic Fleece TEFIM®INSULATE reduces noise and reverberation

TEFIM®INSULATE: A non-woven fabric solution specifically designed for sound absorption and reverberation reduction in construction systems.

TEFIM®INSULATE is our own brand of technical and sustainable acoustic fleece. A sound-absorbing non-woven solution developed to improve acoustic comfort and meet the most demanding standards in architecture and construction projects. These projects often include decorative panels, suspended ceil-ings, or partition walls: materials valued for their aesthetics and durability. However, their reflective surface presents a constant technical challenge: noise and reverberation control. For architects, acoustic engineers, and constructors looking to comply with stringent comfort and safety standards, the solution is not to avoid metal, but to integrate it with high-performance components.

Murtra Nonwovens, with over 20 years of experience developing technical solutions for construction, has designed a key component for this challenge: the sound-absorbing acoustic fleece TEFIM®INSULATE. This material, integrated into the non-visible side of the panel, is capable of transforming an acoustically reflective surface into an effective sound control system.

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The Technical Function of Acoustic Fleece in Panels

When sound waves strike an untreated surface whether it’s made of metal, wood, gypsym, or any other type, most of the energy is reflected, increasing reverberation and creating an acoustically uncomforta-ble environment. This is especially critical in spaces like offices, auditoriums, airports, or convention centers, where sound clarity and well-being are functional requirements.

Integrating an acoustic fleece like TEFIM®INSULATE on the hidden side of the panel solves this problem. Its sound-absorbing non-woven structure is designed to dissipate sound energy, drastically reducing reverberation and ensuring the acoustic comfort of the spaces.

Practical Applications of the sound-absorbing fleece TEFIM®INSULATE:

• Perforated Ceilings: The TEFIM®INSULATE acoustic fleece is adhered to the top of the metal panels. The panel perforations allow sound to pass through and be absorbed by the fleece, cre-ating a high-performance system without compromising the design’s aesthetics.

• Sandwich and Partition Panels: In multi-layer systems like sandwich panels or partition walls, the sound-absorbing fleece acts as an internal layer that controls resonance and reduces noise transmission, improving the system’s integrity.

• Suspended ceilings, partition walls, and decorative panels. TEFIM®INSULATE offers broad compatibility with surfaces such as aluminum, wood, or plaster, even in conditions of low ad-hesion.

Competitive Advantages of TEFIM®INSULATE compared to other acoustic fleeces.

TEFIM®INSULATE is a technical acoustic control solution that responds to the most demanding regu-latory and environmental challenges in the construction sector.

Customizable Acoustic Performance

Unlike generic solutions, the performance of TEFIM®INSULATE is adapted to each project. As non-woven fabric manufacturers, we can tailor the grammage, composition, thickness, and sound-absorbing properties of the non-woven fleece required for your project. We create the product with customized characteristics and finishes to achieve the acoustic absorption coefficient your project needs.

Certified Fire Safety: EUROCLASS B-s1, d0

Safety is a non-negotiable pillar. TEFIM®INSULATE complies with the European Fire Reaction Classi-fication standard, Euroclass UNE EN 13501-1:2007. This certification, required in civil and public works, guarantees a very limited contribution to fire, very low smoke production, and the absence of flaming droplets.

Sustainability and Traceability (FSC® Certification)

At Murtra Nonwovens, we are committed to projects that prioritize sustainability and responsible re-source management. Furthermore, we strive for our products to have the minimum impact on the planet’s health, which is why TEFIM®INSULATE is available with FSC® certification. This ensures that its components of forest origin come from responsibly managed sources and verifies its environ-mental traceability.

Versatile Integration into Architectural Systems

Its format and compatibility with surfaces like aluminum, wood, or plaster facilitate its integration into industrial panel manufacturing processes, adapting to different production chains.

Compatibility with Multi-layer Systems

TEFIM®INSULATE adapts to films, foams, and adhesives, improving the integrity of the construction system. Its dimensional stability and variety of grammages ensure swift on-site integration, providing an added functional and aesthetic value.

From Challenge to Solution: Professional Technical Advice

The correct specification of a technical material requires professional support. Every project presents unique challenges in acoustics, regulation, and construction. Therefore, the most reliable path is direct dialogue with our specialized team.

Are you looking for an acoustic, fire-retardant, and sustainable solution for your project?

Contact us to:
• Receive a customized proposal.
• Request technical data sheets and certifications.
• Get technical advice on your project, from conception to implementation.

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