Since the bars are bolted to the siding, they cannot be removed. In the case of a fire, escaping through the window is no longer a solution for residents. Deigo’s idea is an affordable device that ...

Another theory is that the bulge allows for more air and light to enter the window without compromising security ... and they rust more easily than flat bars, so they require regular upkeep.

Window grilles have a long history of use in urban areas for security, and they double as ornamental ironwork. Certain cities ...