How to Choose Your Thermal Insulation: A Comparative Guide for Professionals and Homeowners

Essential Criteria for Choosing an Insulation Material

Choosing thermal insulation involves much more than comparing prices per square meter. Multiple technical, environmental, and practical parameters come into play.

Criterion 1: Thermal Performance (λ and R)

Thermal conductivity (λ) varies from 0.022–0.025 for vacuum insulation panels to 0.040–0.060 for cellulose wadding and sheep's wool. Rebrick textile fibers sit at 0.036–0.042 W/(m·K).

Criterion 2: Acoustic Performance

Rebrick textile fibers achieve acoustic reduction indices (Rw) of 42 to 55 dB depending on density and thickness.

Criterion 3: Environmental Impact

Rebrick insulants have a GWP among the lowest on the market (0.5 kg CO₂ eq./m² for 100 mm), thanks to the use of secondary raw materials and an energy-efficient manufacturing process.

Quick Selection Guide

• Lost attic, tight budget: Rebrick 200mm roll, R = 5.2
• Timber frame wall, dual performance: Semi-rigid Rebrick panel 120mm, density 35 kg/m³
• Inter-apartment acoustic partition: Dense Rebrick panel 80mm, density 50 kg/m³

Conclusion

Choosing thermal insulation requires balancing technical, environmental, and practical criteria. Our experts are available to help you select the right product for your specific project.