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EERE » BTO » Building America » Solution Center Home » Image Gallery » This overhang for a south-facing window provides full shade in the summer and full sun in the winter, optimizing savings in both cooling and heating energy (results shown for 2pm in both summer and winter, 36N latitude).

This overhang for a south-facing window provides full shade in the summer and full sun in the winter, optimizing savings in both cooling and heating energy (results shown for 2pm in both summer and winter, 36N latitude).