Did an inspection and there was insulated duct work in the attic it was silver foil on the outside it was the rigid type , looked good. A H V A C guys tells my client that it is the “old yellow stuff” and is hazardous and it needs to be replaced. By the way I recommended this guy. Are we supposed to alarm people that this insulated duct is dangerous, it was used in thousands of homes Thanks for your help, I have to call this guy back soon. After I call the HVAC guy back he says he told the guy he still has the stuff in his own house.
Foil backed soft fiberglass insulation on metal ductwork poses no hazard or threat that I’m aware of. It is usually wrapped around the ductwork and stapled onto itself to hold it in place. Asbestos, like Brian says, is a different story but I doubt that is what is being referred to.
Thanks, it is the foiled yellow fiberglass, on the inside its a hard fiberglass. The older stuff is yellow, the newer is black inside. They say the yellow breaks down after awhile. There is no metal at all no asbestos either.