Reflectix Duct Insulation (R-8.0 with air space), big-bubble foil duct wrap is energy-efficient and fiber-free. Some advantages over conventional insulation include:
easy, dust-free installation
not affected by moisture or humidity
resists mold, fungi, and mildew
reflects 97% of radiant heat.
Perfect for vulnerable areas such as attics or garages. Reflectix Duct Insulation may be installed by wrapping rectangular or round ductwork. The product costs less to install due to its lightweight nature - easy to cut and handle. Made in USA.