Skip to main content

Resources

Timber Specifications

Fire Retardants Specification Guide

Koppers FirePRO®

Koppers FirePRO® fire retardant treated wood products (FRTW) have been tested to BS EN 13501-1 ‘Fire classification of construction products and building elements’.

These tests are commonly referred to as ‘reaction to fire tests’. Reaction to fire tests are commonly called up in regulations in both the building and transport sectors. The classifications of flammability are A1, A2, B, C, D, E and F. Koppers currently holds approvals for many of the most commonly specified species. Below is a list of just some of the approvals held.

  • Softwood Plywoods (Spruce, Pine...)
  • Hardwood Plywoods (Far Eastern, Birch...)
  • Softwoods (Spruce, Western Red Cedar...)
  • Hardwoods (Oak, Poplar...)
  • Thermally Modified Wood (Thermowood...)

Further materials are undergoing testing on a continuous basis, please contact us for a comprehensive list. Please check with Koppers for specific sizes tested and approval classification achieved. Koppers FirePRO treated wood products can also be CE marked.

Koppers FirePRO is able to meet the requirements of HR (humidity resistant) treatment and DI (dry internal) specifications. Koppers FirePRO is approved by London Underground as a suitable fire retardant treatment for timbers to be used in their construction and maintenance projects, approval reference ID 1327.

PROTIM Frameguard®

Protim Frameguard® has been tested by Building Research Establishment (BRE) in accordance with BS 476 Part 7, the UKTFA ‘FR Build’ Scheme.

Protim Frameguard also complies with the NHBC preservation requirements for framing timbers embodied in Chapters 2.3 and 6.2 of the 2006 edition of NHBC Standards.

Protim Frameguard is a flame retardant and preservative low pressure treatment system developed to reduce flame spread in framing timbers and plywoods during construction and to impart preservative protection against fungal decay and insect attack to Use Class 2, 60 years desired service life, in accordance with BS 8417:2011 Preservation of Wood - Code of Practice.

up arrow Scroll to Top