We use cookies to offer the best possible user experience on our website. We also use third-party cookies, to deliver personalised advertisement messages. By using our website you agree, that cookies can be saved on your device. Further information on the cookies used and on how to disable them can be found here.

Fire-resistance in wooden structures

15.02.2016 -
Wood is a combustible material and when it catches fire, carbonisation causes a reduction in its size.

Amonn produces the intumescent paints Amotherm Wood WB and WSB specially designed for protecting wooden structures from fire.

The fire-resistance of wooden structures can only be verified through analysis in compliance with the criteria set out in the European codes EN1991-1-2 and EN1995-1-2, making a technical assessment enabling the thickness of the protective coating
to be measured, taking into account the following parameters:

  • resistant sections
  • static framework and loads
  • type of partition
  • carbonisation speed
An important parameter for checking fire-resistance is carbonisation speed that specifies the thickness of the carbonised material in relation to time. A reduction in this speed makes it possible to increase the fire-resistance of the structural element, limiting reduction of the resistant section.

AMONN has tested our Amotherm Wood paints according to the standard EN 13381-7: “Test methods for determining the contribution to the fire resistance of structural members - Applied protection to timber members” and we have calculated the contribution made by the protective coating to reducing the carbonisation speed.
Back to the list