Question: A contractor must select a roof covering material from the two diffuse, opaque coatings with ??, (?) as shown. Which of the two coatings would

A contractor must select a roof covering material from the two diffuse, opaque coatings with ??, (?) as shown. Which of the two coatings would result in a lower roof temperature? Which is preferred for summer use? For winter use sketch the spectral distribution of ??, that would be ideal for summer use for winter use.

1.0 Coating A 0.8 0.6 0.4 Coating B 0.2 8. 12 A

1.0 Coating A 0.8 0.6 0.4 Coating B 0.2 8. 12 A (um) 16

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