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. What is the R-value (ft2-h-F/BTU) of the wall constructed of materials listed below? Starting with the materials on the inside of the wall:

. What is the R-value (ft2-h-F/BTU) of the wall constructed of materials listed below? Starting with the materials on the inside of the wall: Particle board, 0.98 inches thick (inside surface) Airspace, 3.5 inches thick Particle board, 0.72 inches thick Metal siding (outside surface) Express your answer to the nearest 0.2 in R-value.

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