Acoustic Insulation

What is Acoustic Insulation?

Acoustic insulation reduces the transmission of sound between walls, floors, or adjacent rooms—creating quieter, more comfortable indoor spaces. Whether it’s for speech privacy in offices, serenity in homes, or sound control in theaters, acoustic insulation improves overall quality of life and building usability.

Key Performance Parameters

Noise Reduction Coefficient (NRC)

Indicates how well the material absorbs sound higher NRC = better absorption

Sound Transmission Class (STC)

Measures the material’s ability to block airborne sound between spaces.

Density & Thickness

Thicker materials absorb more sound and reduce sound transmission.

Fire & Moisture Resistance

Ensures safe use in humid or high-risk environments over the long term.

Why Choose Coir Acoustic Insulation?

Natural Sound Absorption

Coir’s dense, fibrous texture efficiently absorbs sound and dampens vibrations.

Eco-Friendly & Renewable

Made from coconut husk fibers, supports sustainable construction.

Moisture & Fire Resistance

Coir is naturally moisture-resistant and can be treated to meet fire safety standards.

Healthy Indoor Air Quality

Free from synthetic chemicals and VOCs, ideal for homes, hospitals, and schools.

Durable & Easy to Install

Lightweight yet sturdy, coir insulation fits well into both new builds and retrofits.

Versatile Applications

Versatile insulation for walls, ceilings, floors, and industrial prefab structures.

Applications of Coir Acoustic Insulation

Corporate Offices & Boardrooms

Enhance productivity and speech privacy in high-performance work environments.

Hospitals & Healthcare Facilities

Reduce patient room noise and support healing through quiet, compliant interiors.

Institutions & Auditoriums

Improve speech clarity and reduce echo in learning and performance spaces.

Luxury Hotels & Residents

Ensure restful stays by minimizing inter-room noise and mechanical disturbances.

Cinemas Studios

Deliver premium sound control & acoustic fidelity for immersive experiences.

Industrial Projects

Dampen equipment noise & reduce vibration in factories & transport systems.

Technical Specification

Property	Unit	Typical Value/Range	Notes
Density	kg/m³	100 – 140	Depends on panel type and compression
Thickness	mm	10 – 20	Common tested thickness for panels
Sound Absorption Coefficient (NAC/NRC)	-	0.39 – 0.97	Varies with frequency and backing materials
Frequency Range	Hz	500 – 5000	Effective sound absorption range
Peak Absorption Frequency	Hz	2600 – 3800	Peak absorption with backing materials
Backing Materials	-	Porous layer, woven cotton cloth, perforated panel	Improves absorption at low and high frequencies
Environmental Properties	-	Odorless, rot resistant, mold resistant	Natural fiber benefits

Ready to Build with Smarter Insulation?

Connect with us to discover how EVA Fiberz’s coir insulation enhances sustainable building performance.

Coconut Fiber Acoustic Insulation

Coconut fiber, also known as coir, is quickly gaining recognition as a premium solution for acoustic insulation. Its unique fibrous structure naturally absorbs sound waves, reducing echo and noise transmission across walls, ceilings, and floors. This makes it highly effective in spaces that demand sound clarity and control, such as homes, office buildings, recording studios, theaters, and even vehicles. Beyond sound absorption, coir also dampens vibrations, contributing to a quieter, more peaceful environment.

What sets coconut fiber apart is its sustainability and safety. Sourced from the husk of coconuts, this insulation material is biodegradable, renewable, and free from toxic chemicals or VOCs. Unlike synthetic insulation, coir promotes healthier indoor air quality while supporting eco-conscious construction practices. Its durability in varying conditions further makes it an ideal long-term acoustic insulation choice across residential, commercial, and industrial applications.

Noise Reduction

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More Durable Than Foam

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Sustainable Material

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Superior Sound Absorption

Porous coir structure traps and dissipates sound waves, reducing noise transmission across walls, ceilings, and floors effectively.

Vibration Control

Dense and flexible coir naturally absorbs impact noise and structural vibrations for a quieter and more peaceful space.

Eco-Friendly Acoustics

Biodegradable, renewable, and non-toxic—coir insulation ensures a healthier indoor environment without harmful chemicals or VOCs.

Key Benefits of Coconut Fiber Acoustics

Sound Absorption

The porous structure of coir fibers traps and converts sound waves into heat energy—minimizing noise travel through walls, floors, and ceilings.

High NRC Ratings

Coconut fiber boasts a high Noise Reduction Coefficient (NRC), absorbing sound across varied frequencies—ideal for acoustically sensitive environments like studios, offices, and homes.

Vibration Damping

Thanks to its natural density and flexibility, coir effectively reduces structural vibrations, limiting noise transfer in multi-story buildings or industrial settings.

Eco-Friendly & Non-Toxic

Coir insulation is biodegradable, renewable, and free from VOCs—making it safe for both the planet and people.

Long-Lasting Durability

Naturally resistant to humidity and decay, coconut fiber maintains its soundproofing qualities even in extreme environmental conditions.

Fire Safety (Treated)

With the right fire-retardant treatment, coir becomes a safe material suitable for building codes while retaining its acoustic benefits.

Applications of Coconut Fiber Acoustics

Partition Walls & Ceilings

Reduce sound travel between rooms in homes, offices, hotels, and apartments.

Floor Insulation

Dampens impact noises like footsteps—ideal for upper-floor comfort and peace.

Studios & Theaters

Perfect for recording spaces and auditoriums requiring high-quality sound clarity and reduced reverberation.

Machinery & Vehicles

Used around engines or inside vehicle panels to control noise and mechanical vibrations.

Benefits at a Glance

Natural & Sustainable: A renewable, biodegradable alternative to synthetic foams or fiberglass.
Non-Toxic: No harmful chemicals or VOCs, promotes better indoor air quality.
Strong & Resilient: Withstands temperature and humidity changes, preserving sound performance.