Practical info | Fire Protection | Lemahieu Group

Some points of attention regarding the fire retardant treatment of wood

With Lemahieu Fire Protection®, we can give timber products a fire-retardant treatment with Burnblock® in our autoclave under pressure.

At our production site in Ostend, we treat the timber or panels fire retardant in accordance with the EN14915:2013 standard. Afterwards, the fire-retardant treated wood is dried on site and can be further processed according to your choice: planing, painting, preserving...


If you wish to purchase fire retardant timber from Lemahieu Fire Protection®, please take the following into account:


  • Essential minimum volume of 1.3 m³.

  • Battening is essential:

    • profile thickness up to 28 mm = per 2 profiles (no marking on the visible side)

    • profile thickness from 28 mm = per unit (marking possible on the visible side)

  • Timber treated with Burnblock® undergoes little to no change of colour and structure. Take note for oak: significant colour changes may occur here.

  • During the drying process, a visible white film may form on the surface of the timber. This is a logical result of the drying process. The white film can be removed with a brush, cloth or water.

  • Timber treated with fire retardant can be used indoors as well as outdoors.

  • Timber treated with fire retardant is durable over time. The durability over time is guaranteed in accordance with BS EN 16755:2017. 

  • Delivery period: 4 - 7 weeks.


Want to know more?

Do you wish to receive more information or advice concerning the reaction to fire classes, don't hesitate to contact our Technical sales advisor.



Contact Geoffrey Moerman

Technical sales advisor of Lemahieu Fire Protection®

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