We will be calculating the overall U-value for the above wall assembly by calculating R-values and U- values for individual layers and components, then adding complexity to those layers. The section of wall we are examining is 40' wide by 12' tall. The wall is constructed with 2x6 wood framing, pink batt insulation, blue insulation, and exterior siding. 1.a) Consider just the innermost layer of the wall consisting of pink batt insulation and wood framing. The R-value for the insulation is for the entire thickness of the pink insulation between the 2x6 framing is R-24. Assume the layout of the 2x6s is 24" on-center. The R-value for the 2x6 is 1.1 per inch of wood thickness. Calculate the aggregate U value for the combination of 2x6s and pink batt insulation. Calculate this to three decimal places. 1.b) Calculate the R-value for the combination of 2x6s and pink batt insulation. Calculate this to two decimal places.