Abstract: A window protection structure for a building including novel structure for affixing a sheet of protection material over the window opening. The sheet material is cut to the size of the window opening in the building, and holes are formed therein. U-shaped clips are slid onto an upper edge of the sheet material, and a plurality of brackets are provided with a pair of holes formed therein. Cords loops are secured through the holes in the brackets. The brackets are adapted for receipt by the interior of the window and the cords are threaded to the exterior of the window. The cord loops are threaded through the holes in the sheet material. A bungee cord is then used for securing the ends of the cord loops, whereby the sheet material is held firmly against the window.