The house we just bought is 8 years old and has vinyl siding on the exterior. We have a lot of very windy days in eastern Pennsylvania. When it is windy the fireplace and chimney rattle like crazy. It sounds like a baby playing with mom's pots and pans - as if wind is getting into the area around the metal exhaust pipe and shaking it around. We have no idea IF this can even be fixed or how to fix it. We have thought about insulation but it would need to be fire proof and we have no idea how it could even be installed between the chimney walls and exhaust system.