AstroECO Radiant Barrier Insulation
Improves Interior Comfort
AstroShield, an improved version of the product previously known as Astro Foil, is a line of reflective insulation products featuring polyethylene bubble film sandwiched between two protective sheets, one or both of which are composed of a strong metalized aluminum polyester film. This film provides a reflective surface that blocks up to 95 percent of radiant heat, dramatically improving thermal performance and energy efficiency while keeping energy costs lower and interior spaces more comfortable.
Mass insulations like fiberglass, cellulose and foam merely slow down the transfer of conductive heat by absorbing it; they do not reflect radiant heat away. Like a radiant barrier, reflective insulation is a highly effective barrier to the transfer of radiant heat. The middle layers of bubble film give the structure added strength and provide a thermal barrier against conductive heat transfer.