fire-resistant windows

the expert in fire-resistant windows

Windows are one of the most vulnerable elements of a building. To prevent a fire from spreading through a building, it is important to fit the right fire-resistant windows. Why not contact aalbers|wico - the specialist in structural fire security! We manufacture, supply and install fire-resistant windows precisely in accordance with your specifications. If you wish, they can also be offered in combination with intruder-, ballistic- and blast-resistant properties.

tested in practice

The resistance value of our windows has not only been calculated on paper – it has been tested in practice too. At our own test centre we can see how the frames and glass stand up to the toughest of conditions. We make use of a fire test furnace for this.


Our windows are based on the standards NEN 6075, 6068 as well as 6069, and EN 1634, 1364, 13501 and 15269, but we can also go one step further. If stipulated in the Schedule of Requirements, we can supply a window offering the actual level of resistance you need. The official standards form the starting point here, but the window undergoes further testing on the basis of additional criteria. 

Find out more about standards for fire-resistant windows in our knowledge centre.

testing methods

We test the fire resistance of all our windows in our own test centre in accordance with the methods described in the applicable standards NEN 6069 and EN 1634. This is made possible with the help of facilities including a test furnace

Find out more about testing methods for fire-resistant windows in our knowledge centre.

resistance classes

The resistance class of fire-resistant windows is broadly defined on the basis of two factors: the function of the window (e.g. supporting, separating, insulating, etc.) and the length of time for which the window is able to maintain this function when exposed to fire.

Find out more about resistance classes for fire-resistant windows in our knowledge centre.

Want to find out more about our fire-resistant windows or receive a quotation based on your Schedule of Requirements?
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