7.4.3 Radiation
Radiation is the transfer of heat energy as electromagnetic waves, which heat solids and liquids (but not gases) encountered in its path.
Fire radiation paths do not require any contact between bodies and move independently of any material in the intervening space. If not absorbed by fi re resistant material the electromagnetic radiation can radiate through glazing causing fi res to spread and involve a number of compartments/rooms. As with the example of a heater or open fi re, fi res can spread to combust ible