An
inflatable barrier for preventing floodwater intrusion into interior spaces is disclosed. The barrier includes a rigid or semi-rigid panel sized to fit within a doorway, window frame, or other
entryway of a dwelling.
Inflatable tubing is mounted around the perimeter of the panel and, when inflated, expands outward to form a compressive, watertight seal against the surrounding frame. The
assembly is lightweight, removable, and reusable, allowing a homeowner to quickly install or remove the barrier as needed. The device may be constructed from materials such as plexiglass, plastic, glass, or wood, with the
inflatable tubing formed from rubber or similar flexible materials. The invention provides an efficient and adaptable means of protecting interior entryways from floodwater damage.