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STRUCTURE
All insulation reduces the flow of thermal energy (or “heat”) from one surface to another. Insulation keeps the heat in during the winter and out during the summer. The same fundamental physics apply to all types of insulation. There are three main types of heat transfer: conduction, convection, and radiation.
YellowJacket™ Insulation is made from a lattice of macroscopic air pockets, which are carefully engineered to reduce air circulation and minimize convective heating. A low-emissivity coating is applied to internal surfaces to eliminate most radiative heating, and the walls of the pockets are thin enough to prevent any substantial conductive heating. Essentially, the precise structure of the material makes it as difficult as possible for energy to travel from one side of the insulation to the other.
COMPOSITE
Batts of YellowJacket insulation are constructed out of a composite material we developed called “ChipAL”. When exposed to an open flame, ChipAL forms a passive mechanical "blister" that stifles ignition and prevents further combustion. The high conductivity of the material quickly wicks thermal energy away from the flame (essentially acting as a heat sink across the surface of the insulation) while its low emissivity prevents heat from penetrating through the wall.
The results of a combustion test are shown on the right. This photo was taken shortly after our technician pulled the ignition source (a propane torch) away from a batt of YellowJacket™ insulation. The flame was unable to spread and extinguished itself immediately.
