Fire Rated Windows, Heritage Secondary Fire Rated Windows, Screens And Glazed Doors

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Fire Rated Windows, Heritage Secondary Fire Rated Windows, Screens And Glazed Doors

  • Fire Rated Windows and Glazed Doorsets are manufactured for both Primary and Secondary applications.
  • Available in E15 to E120 (Integrity Only), EI15 to EI120 (Integrity and Insulation) and also EW15 to EE120 (Integrity and Radiation).
  • Our systems are available in both Aluminium and Steel and glazed with either single or double glazed units.
  • We provide 'supply only delivered' or 'supply and installed' along with site survey as and when required.
  • Our 'supply only' systems include full fixing kits and instructions.

Product Description

Our Fire Rated Secondary Glazing is primarily used for commercial and residential applications, to provide up to 120-minutes fire protection without the need to remove primary glazing. Our secondary glazing can accommodate square, arched and gothic-style openings to maintain the original look of the building.


All systems are designed to be installed into existing openings or pre formed fire rated openings as illustrated above.

Certification includes BS EN 476 Part 22 British Standards and associated standards such as EN 1634 and EN 16034, 13501-1, A1 and similar European Standards.

All products are made here in the UK to bespoke sizes to suit either existing apertures or newly formed openings.



Advantages

Our ‘Heritage’ range offers slender profiles so that the window does not detract from the building’s existing appearance. This is ideal for listed buildings in order to maintain the integrity and originality of the building, whilst offering fire protection to meet the Health & Safety Executive’s standards.

Features

  • Certificated solution available in single and multiple combined units for new or existing windows
  • PPC or Anodised factory applied finishes in a wide range of RAL colours.
  • Glass can be removed or opened on hinges for cleaning and maintenance of existing windows.

Typical Areas of Application

·     Listed, Heritage and Historic Buildings

·     Residential Buildings

·     Libraries

·     Schools and Educational Institutes

·     Data Centres and Testing Facilities

·     Office Buildings

·     Factories




·     Hospitals

·     Airports

·     Laboratories

·     Hotels

·     Apartments

·     Museums and Galleries




Two glass window panels lean against a white, textured wall near a large window and radiator in an unfinished room.
A white-framed, multi-pane window overlooks a brick building and outdoor walkway, with a radiator visible below.
A view through a white-framed window looking out at a brick building courtyard with a radiator below.

Fire Rated Systems Explained

Fire Rated Frame and Glass Systems are designated both by the type of fire protection that is offered and also the length of time that it is required to protect against the fire. Generally, the fall into the below categories


Integrity Only

E15, E30, E45, E60, E120 – ‘E’ refers to fire integrity and the number is the time in minutes. This is the amount of time a window can protect before a fire can pass through.

 

Integrity & Insulation

EI15, EI30, EI45, EI60, EI120 – ‘EI’ refers to fire integrity and insulation with the number in minutes. Insulation refers to the ability to limit heat transferring to the other side, important in locations with higher footfall.

 

Integrity & Radiation

EW15, EW30, EW45, EW60, EW120 – ‘EW’ refers to fire integrity and insulation with the number in minutes. Radiation refers to the reduction in radiant heat transfer to the non-exposed side.


FINISHES
Factory PPC finish in a chosen RAL colour as standard
Special finishes available upon request
PROFILE
Both steel and aluminium systems available
Our ‘Heritage’ range has slender profiles and slim sightlines to maintain the appearance of the existing window
Unique shapes and sizes can be accommodated
Both fixed and hinged secondary windows available
AVAILABLE SIZES
Certificated up to 4-metres in length as a single pane
The product can combine multiple units to provide an indefinite width and height
CERTIFICATIONS
Certifire document is available to satisfy compliance and Health & Safety (HSE) requirements
We offer installation to provide a complete, certificated, supply and install package to comply with Fire Officer requirements
THERMAL PROPERTIES
Thermally broken systems available
INSTALLATION & MAINTENANCE
O&M Manuals provided upon completion
Ongoing maintenance and cleaning instructions provided
Installation kits provided for supply only or complete installation package available
A light green, 16-pane arched window set into a rough, exposed brick wall.
A white-framed window slightly ajar, revealing a view of a metal balcony railing and greenery, with a radiator below.
Three construction workers in high-visibility vests and helmets install a large glass pane into a wall frame.

'Heritage' Product Range

The ‘Heritage’ range of window profiles offer the perfect combination of performance and discreet sight lines. This system is regularly specified for use in many buildings which require slender unobtrusive secondary glazed fire windows and also many listed buildings.

It is certificated with all types of fire glass from well known manufacturers such as Saint Gobain, Pilkington, Pyroguard and others. It is available in a full range of RAL PPC finishes

Shown below is the ‘Heritage’ Fire Rated Window System used in conjunction with LPCB security rated windows to

provide security and fire protection within laboratories and other
high security and sensitive areas. It is available in 3 frame widths to offer further flexibility when matching up to security, ballistic or blast windows:

·     61mm

·     71mm

·     81mm


Technical diagram of 'Heritage' Aluminium Profiles with cross-sectional measurements and fire rating options (EI 15-60).

X

Technical drawing showing a cross-section of a back-to-back fire-rated and security-rated window installation detail.
A corner section sample of a dark grey aluminum window frame with a single pane of glass held by black rubber gaskets.

As shown above, the 'Heritage' profile offers discreet sightlines and ensures the original appearance of the window is maintained whilst offering the desired level of fire protection. A wide range of RAL colours are available in order to sympathetically disguise the secondary window as best as possible.

Unique Shapes and Sizes

As is the case with many traditional, listed and heritage buildings, a large proportion of windows have compound curves and unique shapes. We offer secondary glazing with frames to complement the existing window and to match this as closely as possible in order to retain the original look of the window.

Our ‘Heritage’ range is very popular with architects working on listed buildings with more bespoke, unique and ‘gothic’-style windows.



A stained glass window with a circular top section, set in a stone wall next to a dark wood balcony and staircase.
A semi-circular, unfinished room with tall grid windows topped by decorative patterned glass panels under construction.
Stained glass window set in a stone arch featuring a figure draped in blue and red robes, topped with a small angel motif.
A triple-arched stone window with leaded diamond-pane glass and decorative stone tracery.
A decorative, circular stained-glass window set within a pointed stone arch above a wooden door.
A light stone wall featuring a window with two diamond-paned glass sections and decorative gothic tracery above.
A large arched window with a white frame and a modern pendant lamp hanging in front of it, overlooking an interior space.
Five arched stained-glass windows with a geometric grid pattern set into a curved, wood-paneled ceiling inside a building.

Steel Fire Rated Window Systems

Window System Details

Steel fire rated windows offer up to 120 minutes of fire protection and offer a further range of sightlines to match existing primary windows

 

As can be seen this document, there are several options in terms of frame profiles and widths and combining these with different glass thicknesses and properties, we can achieve a wide range of performance and visual products.

 

As shown below, we can effectively create a unit indefinite in
length in order to meet the width and height requirements.


Technical cross-section diagrams of EI 30 and EI 60 steel system profiles with labeled dimensions.
Technical cross-section drawing of an EI 120 steel profile with dimensions labeled 50, 20, 110, and 70 millimeters.

Hinged Opening Casements

We can also offer a hinged, opening window as a certificated solution. Whereas with fixed windows, the glass has to be removed for cleaning and maintenance, our hinged alternative allows easy access to both the existing primary window and inside of the secondary.

 

Fire ratings of EI30 and E60 can be achieved with this system, and it is also available as a non-fire rated system with varying sightlines.


A hinged secondary window provides easy access to the primary window to allow for ventilation and air exchange.

The varying frame width also allows the window to complement and match the existing sightlines already in place with the primary window.



Technical cross-section diagram of an EI 30 hinged center-opening steel door system with specific component dimensions.

Sample section detail shown above and sample drawing shown right.

Technical diagram of a window unit measuring 1135mm wide by 1935mm high, featuring two stacked glass panes.

Full Working Drawings Are Provided

Full approval drawings are provided prior to manufacture and 'as-built' drawings once the project is complete.

Please see below for an example of the drawings provided for a unique and gothic-shaped window.


A pointed white arched doorway framing a central circular decorative emblem featuring a gold fleur-de-lis on a dark border.
Technical drawing of an arched window frame with dimensions in millimeters.

Sample Drawings

Technical engineering drawing of a glass partition panel with dimensions and frame details, labeled
Technical engineering drawing of a glass window frame, including plan views, sections, and structural specifications.

Frequently Asked Questions

  • Are you able to accomodate bespoke shapes and curved windows?

    Yes, we can accomodate a variety of shapes and sizes, ranging from 'square' frames, 'arched' frames to 'gothic'-style frames.


    We do not believe in offering an off-the-shelf square framed product to meet fire rating requirements. We aim to offer a discreet and sympathetic solution to retain the original appearance of the building.

  • Are your products certificated?

    Yes, we offer full fire certification for this product and this will be supplied within the Operation and Maintenance (O&M) Manuals for Fire Officers and the Health and Safety Executive (HSE).

  • Do you offer supply and installation?

    Yes, we are able to offer a complete package to supply and install this product.


    We begin with a site survey to measure and assess the current opening in which we will be installing.


    We then manufacture, deliver and install the units, if installation is required.


    This ensures that the entire process from start to finish is taken care of with no liability on the customer to provide final measurements of the opening.


    Alternatively, we are able to simply supply the fire rated windows along with a fixing kit.