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Akotherm-original.
Acoustic materials

Akotherm Original

Sound‑absorbing and thermally insulating polyester-wool panel.

Sound absorption up to αw = 1.00

Suitable for walls, floors, and ceilings

Lightweight, dust-free, and hypoallergenic

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Description

Akotherm Original is a polyester wool panel that absorbs sound and also helps with heat insulation. It is used in walls, floors, ceilings and hollow spaces. It reduces echo and makes spaces more comfortable and energy efficient. The open-fibre structure makes the panels light and easy to handle. They keep their shape well and are resistant to moisture, oils and common cleaning products. The material is dust-free, hypoallergenic and contains no chemical binders. This makes it safe for indoor use. Standard panel size is 1,200 × 1,000 mm with a density of about 20 kg/m³. The panels can easily be cut to size.

Core features
Fundamental properties that define performance.
CE certification
Sound insulation
Fire resistance
Smoke control
Burglary resistance
Bullet resistance
Air and gas tightness
Additional functions
Additional functions that enhance safety and control.
Anti-panic function
Access control
Specialised options
Solutions for highly specific technical environments.
Ventilation
ATEX model
Transformer model
Properties

Akotherm Original has a sound absorption value (αw) from 0.40 to 1.00, depending on thickness, density and installation. It also provides thermal insulation with a value of λ = 0.040 W/(m·K) according to DIN 52612, Type D20. The material stays stable and keeps working well over time.

Applications

Akotherm Original is suitable for walls, floors, ceilings and building structures where both sound and thermal insulation are needed. It is used in homes, offices and industrial buildings. The material is safe for indoor use because it is dust-free and hypoallergenic. It can be placed visibly on walls or ceilings for direct sound absorption, or hidden inside constructions as an alternative to glass wool or stone wool.

Downloads and specifications

For complete technical specifications, manuals and certificates, refer to the documents below.
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Answers to common questions

Answers to the most common technical and practical questions.
What is an LCA (Life Cycle Assessment)?

A Life Cycle Assessment (LCA) is an environmental analysis of a product throughout its entire life cycle: from raw materials and production to use, maintenance, and end-of-life. An LCA provides insight into the environmental impact, such as CO₂ emissions, energy consumption, and material footprint, and helps ensure the product can be used in sustainable projects or comply with certifications such as BREEAM, LEED, or the National Environmental Database.

Is this product suitable for installations using alternative refrigerants (new F-gas regulations)?

Yes. The revision of the European F-gas Regulation (in effect since 11 March 2024) does not affect the applicability of this product. The existing requirements for fire safety and acoustic performance remain in place and are fully supported by this product.

For building-related technical installations in new construction, an LCA certification is mandatory. This product has an LCA declaration that is included in the National Environmental Database.

Can the acoustic performance be predicted for a specific space?

Merford can perform acoustic analyses or simulations to predict noise levels and reverberation times based on material selection, room dimensions, and finishes, ensuring the right solution is designed.

How maintenance-friendly are these materials?

Our acoustic materials generally require minimal maintenance. Dusting and cleaning is usually sufficient to maintain long‑term performance.

What is the difference between vibration isolation, sound insulation, and sound absorption?
  • Vibration isolation reduces mechanical vibrations from machines or equipment, preventing transmission to the building structure or floor.
  • Sound insulation prevents sound from passing from one space to another, e.g., between rooms or to the exterior.
  • Sound absorption reduces echo and reverberation within a space by damping sound waves, improving comfort and speech intelligibility.

Merford materials can provide one or more of these effects depending on the product type, such as absorption panels for rooms or isolation around ventilation units.