Fire Safety Science Digital Archive

Combustible building boards are often used as internal linings to walls and ceilings of buildings and the fire risk associated with some of these boards can be reduced by treatment with fire retardant paints. The majority of internal linings however receive only decorative treatments and although it is generally assumed that these afford some protection, there is little information on the degree of protection or on the relative merits of the treatments. Since surfaces with a Class 2 or Class 3 rating on the surface spread of flame test are recommended for many situations it is important to know with which decorative treatments those can be achieved.