Assembly Wall Construction R-Value Compiler
Stack multi-layer structural building materials to find total thermal resistance (\(R_{\text{total}}\)) and overall heat transfer coefficient (\(U = 1/R\)).
Thermal Resistance Equations:
\( R_{\text{total}} = \sum_{i=1}^{n} R_i \quad \text{and} \quad U = \frac{1}{R_{\text{total}}} \)
Material Layer Stack
Total Assembly Resistance
R-25.50
Overall U-Factor ($U = 1/R$)
0.039 BTU/hr·ft²·°F
IECC Energy Code Compliance
Assembly meets modern IECC Zone 4/5 continuous insulation code targets (U ≤ 0.045).