Thermal Insulation vs Acoustic Insulation: Differences, Synergies and Choosing the Right Product

Two Different Physics, Two Distinct Problems

Thermal and acoustic insulation are often confused because the materials used look similar and are often installed at the same time. But their physical mechanisms are fundamentally different.

Thermal Insulation: Limiting Heat Exchange

Heat propagates via three mechanisms: conduction (through solids), convection (by moving fluids), and radiation (by electromagnetic waves). A good thermal insulant must slow all three, especially conduction, by trapping still air in its structure.

Acoustic Insulation: Attenuating Sound Transmission

Sound is a mechanical wave that propagates by vibration of molecules. Acoustic insulation aims to absorb sound, reduce airborne sound transmission, and attenuate impact noise.

Acoustic Performance of Our Products

• Absorption coefficient αw: 0.80 to 0.95 (Class A)
• Acoustic reduction Rw: 42 to 55 dB
• Impact noise improvement ΔLw: 20 to 30 dB

Conclusion

Recycled textile fiber insulants are one of the few materials to simultaneously offer excellent thermal and acoustic performance without compromise. Contact our team for personalized advice for your project.