Abstract: The invention herein is a deflector for deflecting embers or moisture from the eave vents of a structure. The deflector consists of a frame sized to substantially cover at least one vent in an eave wherein the frame contains at least one door which is slideable along two opposing horizontal grooves separated by vertical braces. When the door is disposed in one extreme, the at least one vent is exposed, and when the door is disposed the opposite extreme, the at least one vent is covered. the at least one door may also include a tab for manipulating the door to one extreme or the opposite extreme.