I have a three-year old house. I had the vents cleaned out (was smelling something), and the company said the plenum is insulated with fiberglass. According to the guy, this was stopped in 2001 in California. Instead, R6 should have been used. They, of course, can charge $3,500 for new ductwork. But if my home is out of code, the builder will need to fix it. Has anyone heard of this? Are you aware of the code they are talking about?
- posted
7 years ago