Fire Glass

Fire resistant glass is used to stop the spread of fire throughout the building in the event of fire through doors and glazed screens.

The Architect, Specifier, or Building Control, will specify the type of fire resistant glazing required in the part of the building needing protection.

The fire resistant glass will require a frame and glazing materials to enable the whole assembly to comply with the relevant regulations.

We can supply fire glass from stock.

We hold the following licence relating to the processing of Pilkington fire resisting glass:

Standards for Fire Resistant Glazing

The British Standards that refer to fire resistant glazing are BS476 Part 20 and Part 22.

The European Standards are: EN13501-2, EN 1363, EN1364, EN1365, and EN1364.  The European definitions referring to fire resistant glass are shown below:


Integrity is the ability of the glass to remain in the frame when subjected flame for the period of time for the integrity specified.


Insulation is an additional function to Integrity.  All fire resistant glass have integrity; not all have insulation.  Insulating glasses will limit the rise in temperature on the non fire side to an average of no more than 140 degrees Centigrade and in any one position by no more than 180 degrees Centigrade.


The reduction of the surface, on the non fire side to reduce the probability of radiated heat, to other materials from that surface.


E = Integrity - No Radiation Control

EW = Integrity plus Radiation Control

EI = Integrity plus Insulation


Frequently Asked Questions about Fire Resistant Glazing

How do I know the type of fire resistant glass I need?

  1. Your Architect or Specifier will advise you, or Building Control will stipulate, what you need to comply with in the Building Regulations.
  2. Use our Fire Rated Glass Enquiry Form (link opens in a new window) to advise us of your specification and enable us to recommend a suitable glass to meet your requirements.

Can it be clear?

Wired was the traditional fire resistant glass but the latest fire resistant glasses are clear.

Are there different types for glazing internally & externally?

Wired is for internal or external use; specify if it is to comply with EN12600.  Most types of clear, however, have an internal and external grade.

Do I need special frames?

Yes, the frame must be constructed from the correct material to give the fire rating required.

Do I need special glazing materials and glazing methods?

Yes, Intumescent, compounds, strips or sealants are needed depending on the type of glass and the rating.  When you specify the glass required we will advise on the necessary materials and glazing method.

Can you provide test evidence if required?

Yes, we have manufacturers' reports available on request.

Pilkington fire glass test reports are also available on the manufacturer's website (link opens in a new window.

What are the delivery times for cut-sizes of fire glass?

Order intake cut-off time: 12 noon
Delivery times shown are for guidance only and are subject to order
Please contact us if you have specific delivery requirements.