The combustion behavior of cellular polymeric materials is reviewed. T
he correlations between the structure and thermophysical properties of
cellular polymers are discussed. The tests for potential fire hazard
of cellular polymeric materials are reviewed. The approaches to flame
retardancy of rigid foams based on reactive polyfunctional olygomers (
phenolformaldehyde and urea formaldehyde ones, polyurethane) are demon
strated.