Patent ID: 8584411

Claim:
A weep hole valve for a structure, comprising: a non-articulating portion securable to the structure proximate a weep hole; an articulating portion secured to the non-articulating portion and articulatable relative to the non-articulating portion between a closed position at least partially covering and at least partially obstructing a flow of air through the weep hole and an open position, permitting a flow of water through the weep hole, the articulating portion having buoyancy in water and floating in response to at least partial submersion in water to transition from the closed position to the open position wherein the structure is interposed between a first environment and a second environment and wherein a flow of air from the first environment to the second environment tends to open the valve and a flow of air from the second environment to the first tends to close the valve; and wherein the first environment is the out-of-doors and the second environment is an in-door space interior to a building, such that the valve curtails the exfiltration of air from the building.