In architecture and building construction, an eave refers to the lower edge of a sloped roof that projects outward beyond the vertical exterior walls of a structure. The primary functional purpose of the eave is to channel rainwater runoff safely away from the siding and foundation, preventing water damage, staining, and soil erosion. Additionally, eaves often incorporate ventilation soffits that help regulate indoor attic temperatures andairflow, combining practical weatherproofing protection with traditional exterior design aesthetics.
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