Fire Retardant Treatment for wood

  • Thanks to fire retardant treatment for wood we achieve classifications B-s1, d0, for WRC B-s2, d0.
  • Without coating the wood, the service life of fire protection is about 30 years outdoors, fire retardant treatment does not increase the resistance of the wood to exterior conditions.
  • Wood turns gray outside like any other natural wood
  • Surfaces can only be treated with designated coatings. These coatings are 100 % natural
  • 100 % biodegradable
  • Non-toxic
  • pH neutral
  • After treatment, plywood, MDF boards, veneer and other products can be used

Protocol on fire testing and classification of GNB-CPD of position document NB-CPD/SH02/12/096 from the Group of Notified Bodies for the Construction Products Directive

Solid wood

According to the classification: EN 13501-1: 2007 + A1: 2009 and EN 13501-2: 2007 + A1: 2009

According to fire testing: EN 13823 (SBI) and EN 14135: 2004

Wood species Density Minimal thickness Reaction to fire treatment

*1. class

Fire resistance

*2. class

Spruce 350-600 15 mm B-s1, d0 K1,K2, 10/ B-s1, d0
Pine 450-600 21 mm B-s1, d0  
Oak 500-750 20 mm B-s1, d0  
Cedar 350-450 12,5 mm B-s2, d0  
Siberian larch 650-750 21,5 mm B-s1, d0  

*1: Material class/Cladding class

 

Heat-treated wood

According to the classification: EN 13501-1: 2007 + A1: 2009 and EN 13501-2: 2007 + A1: 2009

According to fire testing: EN 13823 (SBI) and EN 14135: 2004

Wood species Density Minimal thickness Reaction to fire treatment

*1. class

Fire resistance

*2. class

Thermo ash 590-650 21,5 mm B-s1, d0  
Thermo pine 450-500 19 mm B-s1, d0  
Termo Ayous 550-550 19 mm B-s1, d0  
Termo Accoya 400-700 19 mm B-s1, d0  

*1: Material class/Cladding class