Poor heating of rooms in homes equipped with warm-air furnaces can sometimes be traced to heat loss through uninsulated or poorly sealed air ducts. When ducts run through cold areas such as crawl ...

The company’s duct wrap insulation is composed of glass fibers bonded together with a thermosetting resin, creating a strong, resilient, blanket-type insulation that is easy to fit and install on hvac ...

Q Is it time to replace my 40-year-old ductwork? Can reduced heating and cooling costs justify the high cost of replacing the ducts, or will sealing and insulating the existing ducts be just as ...

DENVER — Johns Manville (JM), a leading global manufacturer of energy-efficient building products and engineered specialty materials and a Berkshire Hathaway company, announced today the release of ...