Condensation control — Preventing condensation that could damage insulation and other HVAC system components or possibly lead to microbial growth; and Energy conservation — Reducing HVAC system ...

Since the introduction of the 1970 Clean Air Act (CAA), coal-fired power plants in the U.S. have been required to reduce undesirable emissions, particularly those of sulfur dioxide (SO 2). Title IV of ...

A shift may be under way ductwork fabrication and commercial and industrial HVAC construction. In some uses, phenolic pre-insulated ducts are replacing those fabricated with galvanized sheet metal.