TempShield Double Bubble Foil is two layers of 5/32" barrier bubble film laminated between two layers of foil. The highly reflective (97%) foil layer makes TempShield a perfect solution for winter-proofing the sidewalls of any greenhouse. A 10.0 R value makes this an affordable permanant solution for insulating metal and commercial buildings, barns or anywhere higher R factors are required.
TempShield is used as insulation against radiant heat transfer and can be used to its greatest advantage in instances where radiation is the predominant means of heat transfer. It is the bright aluminum surface of all TempShield properties. This happens in two ways:
TempShield is an excellent reflector of all long wave radiant heat that strikes it - reflecting up to 97% of all radiant heat.
TempShield will reradiate only 3% of heat in which it comes in close physical contact, compared with the approximate 90% reradiation of ordinary building materials, at the same temperature.