cooltechmd

A little assignment for you, look up what can happen to you from breathing galvanized duct oxidation powder. Fiberglass is a silicate fiber and can reduce lung function and cause inflammation. It can also cause skin, eye and throat irritation. At higher exposure levels, fiberglass also has been associated with skin rashes and difficulty in breathing. Most important fiberglass duct board today is not the same type of fiberglass. The black duct lining used in every commercial ducted air system, roof curbs, and unit construction has it's own health issues. Older residential duct board installations should be inspected and do have a life span. You home inspectors should take a look at this. It is simple to test for, and home owners should be informed. Replacing duct work in commercial or residential is not unheard of, all duct has a life span, it all has it's pro's and cons. Installed, maintained and used correctly and all is well. Unit maintenance, as well as duct inspections by HVAC contractors is very important.