Hi, my name is linda I'm not sure how to explain this I have the regular 1995 mobile home aluminum slide up and down windows, have noticed a breeze coming in, I see at the bottom of window when its open there is a rubber piece there, that looks like its supposed to run from one end to the other,but some looks broken off so if your outside and take off the screen you can actually see light, does anyone know what's its called or how to replace that, I really think it would help with loosing heat, or ac! thank you for any advice!