U-Value Calculator | Thermal Transmittance

🏠 U‑Value Calculator

Thermal transmittance (W/mΒ²K) | Wall / Roof / Floor assemblies

mΒ²K/W
mΒ²K/W

πŸ“ Material layers

* Thickness in mm | Thermal conductivity Ξ» in W/mK
Total Thermal Resistance (RT)
β€”
mΒ²K/W
U‑value
β€”
W/mΒ²K
Performance rating
β€”
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