Yes, impact windows can resist category five hurricanes. Impact windows are designed to withstand the harsh winds and flying debris that may hit during a storm. Our windows have three layers that make the window so sturdy. Two layers of laminated or tempered glass work as the outside layers and the inner layer is a frame made of Polyvinyl Butyral. Because of this, the windows are much harder to break, and if they are hit hard enough, they will crack but not shatter. Whether you stay home or leave, the house will be better protected with impact windows.