To limit the probability of heat loss from steam lines and piping being heated, which could lead to the lines or piping becoming an ignition source, which could lead to the ignition of nearby combustible materials, which could lead to a fire or explosion, which could lead to harm to persons.
To limit the probability of heat transfer from steam lines and heated piping systems to other piping, which could lead to liquid being overheated, which could lead to failure of the piping system to contain the liquid, which could lead to the escape of liquid, which could lead to the accumulation and subsequent ignition of vapour from a nearby ignition source, which could lead to harm to persons.
To expand the application of the National Building Code of Canada to insulation of indoor [existing buildings] and outdoor steam lines and piping for flammable liquids and combustible liquids.