Sparta-Flex Pure and Sparta-Flake Systems have exceeded the requirements of the ISO 9239-1 Radiant Heat tests.

(b) floor surface materials in the following areas of buildings must meet the performance criteria specified below:

Area of building + Minimum critical radiant flux when tested to ISO 9239-1: 2010

Buildings not protected with an automatic fire sprinkler system

Sleeping areas and exitways in buildings where care or detention is provided
4.5 kW/m2
Exitways in all other buildings
2.2 kW/m2
Firecells accommodating more than 50 persons
2.2 kW/m2
All other occupied spaces except household units
1.2 kW/m2

Buildings protected with an automatic fire sprinkler system

Sleeping areas and exitways in buildings where care or detention is provided
2.2 kW/m2
Exitways in all other buildings
2.2 kW/m2
Firecells accommodating more than 50 persons
1.2 kW/m2
All other occupied spaces except household units
1.2 kW/m2

As you can see the highest requirement is 4.5KW/M2 – Sparta-Flex systems rated at greater than 11KW/M2