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reflective paints

Hi I am trying to model a roof and walls covered with an expernal reflective paint according to the energyplus Input Output Reference - "Attempting to trick the program by modeling thin “paint” layers to apply surface properties is not a good idea; the models were not intended to support such strategies."

I have the reflectance and emmitance values, as well as a calculated r value for the layer

how can the thin paint layer should be modeled?

reflective paints

Hi I am trying to model a roof and walls covered with an expernal reflective paint according to the energyplus Input Output Reference - "Attempting to trick the program by modeling thin “paint” layers to apply surface properties is not a good idea; the models were not intended to support such strategies."

I have the reflectance and emmitance values, as well as a calculated r value for the layer

how can the thin paint layer should be modeled?