Interior and fire performance


There is currently a period of co-existence of standards and either EN standards or BS 476 can be used to demonstrate compliance with Building Regulation requirements.

External fire performance for roof covering products
Colorcoat HPS200 Ultra®, when used as part of a roof cladding system can be classified as BROOF(t1), BROOF(t2), BROOF(t3), without further testing, in accordance with Commission Decision 2005/403/EC for all material greater than or equal to 0.4mm gauge and for all colours in the product range.

Colorcoat HPS200 Ultra® has a notional designation of AA (National classification) and BROOF(t4) within Approved Document B of the Building Regulations (England and Wales).

Reaction to fire
Colorcoat HPS200 Ultra® has been tested to EN 13823 and EN 11925 and can be classified in accordance with EN 13501 as C-s2, d0. This classification is valid for material ≥ 0.47mm.


Colorcoat HPS200 Ultra® has been tested and proven to provide the highest level of corrosion protection for interiors.

Used either single or double sided Colorcoat HPS200 Ultra® is the most suited and recommended pre-finished steel product for demanding and corrosive internal environments.

Excellent test results mean that Colorcoat HPS200 Ultra® has been classified as a CPI5 product as per EN 10169:2010.  This is the highest level of classification available for interiors meaning that it is suitable for the most demanding internal environments such as swimming pools and sewage treatment and energy from waste plants.

As shown in the internal environments table below means that Colorcoat HPS200 Ultra® provides corrosion protection in ‘very aggressive’ internal environments as well as having chemical resistance properties.

  Defining atmospheric criteria Typical building use Colorcoat® PE15/PE25 Colorcoat® PVDF Colorcoat HPS200 Ultra®
  Corrosiveness Cleaning Humidity        
A1 Non aggressive Routine upkeep Low hygrometry Offices, Schools and Residential buildings (excluding kitchens and bathrooms)
A2 Low aggressive Routine upkeep Medium hygrometry Sports Halls and Supermarkets
A3 Medium aggressive Non-intensive cleaning High hygrometry Industrial buildings and Factories using dry processes    
A4 Aggressive Non-intensive cleaning Humid – Low risk of condensation  Factories using wet processes and Swimming Pools    
A5 Very aggressive Intensive cleaning Very humid – High risk of condensation  Papermills, Seafood processing, Mushroom cultivation, Cheese factories