What is the R-value of common 1/2-inch wood sheathing?

The R-value represents the thermal resistance of a material, indicating its ability to resist heat flow. For common 1/2-inch wood sheathing, the R-value is approximately 0.6. This measurement is important in assessing insulation within a structure, as it helps determine how effective the sheathing material is at keeping heat in or out. A higher R-value indicates better insulation properties, which is crucial in various climates to enhance energy efficiency in buildings. Understanding the R-value is essential for inspectors to evaluate whether sufficient insulation is in place, particularly in attics where heat loss can be significant.