F90 windows for effective fire protection

With fire-resistant, fire-proof and heat-resistant F90 windows, you make an important contribution to the safety of your building. The special F90 windows serve both to prevent and contain fires in particularly sensitive areas. Depending on the area of application, they protect against heat radiation and smoke. The individual products are divided into fire protection classes. Windows in fire protection class F90 can withstand fire for 90 minutes without breaking. The windows are available in various sizes; all of our fire protection windows are customised and made to order. Our offer also includes fire protection doors and fire protection windows of classes F30 and F60.

F90 fire-resistant windows also make an important contribution to the prevention and containment of fires in your company. Adequate fire protection is an important concern for the protection of people and property. With a fire resistance period of 90 minutes, shatterproof F90 windows in accordance with DIN 4102-12 provide long-lasting protection against the spread of fire. Their protective effect is significantly increased compared to windows in fire resistance classes F30 and F60, which can only withstand flames for 30 and 60 minutes respectively. Our high-quality F90 fire-resistant windows are available as customised products in various sizes and designs to suit your individual requirements. 

F90 windows - one of our most stable variants

With fire-resistant glazing or an F90 class fire-resistant window, you are opting for one of our most robust models. F90 windows comply with DIN 4102-12 and effectively protect against the spread of flames for one and a half hours. In contrast, models in classes F30 and F60 only offer half an hour or one hour of protection respectively. Fire flashover is prevented on one side only. It does not matter whether the fire affects the F90 window from the inside or outside. In both cases, the pane proves to be resistant to radiation and breakage.

Another classification for our F90 windows is EI90. The "E" stands for room closure, the "I" for insulation. This classification is based on the European standard for exterior windows. There is only a difference between EI90 and F90 with regard to use on the exterior wall. Our F90 class fire-resistant windows therefore also comply with this directive. 

F90 fire-resistant windows, which comply with the European EI90 standard, have a fire resistance period of 90 minutes. This means that they can withstand fire and smoke on both sides for one and a half hours and prevent flashover during this time, i.e. the flames from spreading to other parts of the building.

F 90 windows often prove to be life-saving. It is not uncommon for some time to pass before the fire is even noticed. If fire protection windows prevent the fire from spreading for an hour and a half, there is enough time to call the fire brigade, wait for them to arrive and evacuate people from the building.

Fitting windows with fire resistance class F90 significantly increases safety in production halls and warehouses, heavily frequented commercial premises and public facilities with a high level of public traffic. The protection of important documents and material goods also plays an important role.

 

Fair F90 window prices

The F90 windows naturally cost more than simple models without fire-resistant glazing. However, in view of the high protection function, the F90 window price is more than justified. F90 windows are usually double-glazed and fitted with a special gel filling. Their manufacture is correspondingly complex. If you are interested in our models, we will be happy to provide you with a customised quote. The costs depend on the size and the customer's wishes. In general, these are very high-quality products specially designed for commercial and private use. The prices for F90 windows are therefore mostly in the four-digit range. As the windows protect people and high property values in extreme cases, the purchase is definitely worthwhile. F90 windows with fire-resistant glass have long been an integral part of factories, hospitals, official buildings and schools. We supply F90 windows in the Berlin/Brandenburg metropolitan region and throughout Germany. Deliveries of F90 windows to other European countries are also possible on request. We would be pleased to inform you about our production methods.

With their complex structure consisting of double glazing with an integrated gel layer, F90 fire-resistant windows offer a high level of protection against the spread of fire and the effects of heat and smoke. The high-quality materials used and the outstanding protection for people and property come at a price. The F90 window price is therefore higher than that of windows with standard protective glass, for example against noise or solar radiation. In the event of fire, however, you are well protected against high losses. If a building is equipped with an F90 window, this adds to its value.

The size of the fire protection windows, the number of laminated panes, the quality of the frames and the professional installation are among the factors taken into account in the individual calculation of the F90 fire protection window prices. If F90 windows can be opened, the price is higher than for variants without movable sashes due to the integrated locking mechanism. We charge extra for additional glazing and surface finishing. You can obtain a customised quotation for your custom-made F90 window from our joinery on request.

We supply our F90 fire protection windows to the Berlin/Brandenburg metropolitan region, the whole of Germany and, on request, to other European countries.

 

What does fire resistance class F90 mean?

As already mentioned, the F90 fire resistance class refers to the period of time during which the window glass can withstand the fire without breaking apart. F90 stands for 90 minutes, i.e. one and a half hours. The F90 window can effectively prevent the fire from penetrating and damaging other rooms, the interior or exterior. In an emergency, this saves lives, because in most cases it is possible to call the fire brigade if the fire is discovered in time, who will then set everything else in motion. A window with fire protection class F90 provides valuable services, especially in busy commercial premises and public buildings with a lot of public traffic.

Installing an F90 window brings clear benefits and the good feeling of having done enough for the safety of your own building, your staff and all the people in it. Important documents and material goods are also well protected with the right security equipment. An F90 fire-resistant window offers significantly longer protection compared to lower class models. The more time you gain, the better, because every minute counts when a fire breaks out. For lower requirements, we recommend our Class F30 fire-resistant windows. The fire resistance then remains for about half an hour. 

 

F90 fire-resistant windows - in terms of building protection

Even if the F90 fire protection windows are more expensive than conventional models, it is often unavoidable to equip the building with them. Structural fire protection is even regulated separately in building law. The respective requirements can be found in the state building regulations. It is possible that the building authorities will stipulate the installation of fire protection windows during a building project. One of the reasons for this is to secure escape routes. The distance to the F90 window is also decisive for fire protection. Special F90 windows increase safety, especially if the building is too narrow and the distances are therefore too small. If you want to install a window in a fire-resistant wall, you need a model with special fire-resistant glazing. The window frame must also fulfil the relevant requirements. The combination with multi-pane insulating glazing is generally possible.

As the requirements differ depending on the area of application, there are several fire resistance classes. Windows with a G classification are generally only suitable for interior use. Windows with fire protection class G only protect against smoke and fire, but not against heat penetration. Typical areas of application are offices separated by windows. Windows in outdoor areas correspond to fire resistance class F. An F90 window protects against smoke, fire and heat at the same time. It blocks the spread of fire. Our fire-resistant F90 windows are heat-resistant and offer sufficient resistance to flames and open fire. They therefore fulfil the fire protection requirements set by the authorities as a complete component. The window sashes and window frames of the F90 windows also have the required fire protection value. 

Building regulations govern the requirements for adequate fire protection. It is not uncommon for building permits to be issued with fire protection requirements or ancillary provisions. In some cases, this includes the mandatory installation of a fire protection window. In buildings where a large number of people are regularly present or where flammable materials are stored, authorities often require an F90 window. If the prescribed structural clearances are not complied with, which narrows escape routes, a fire wall must be erected for safety reasons. F90 fire protection windows provide sufficient safety in the prevention and containment of fires.

Class F90 fire-resistant glazing stop a wall of fire and prevent the fire from spreading to other areas. This keeps rescue and escape routes clear, which saves lives in an emergency. Securing with an F90 window is extremely important in areas where flammable materials are stored, such as production facilities, warehouses and laboratories.

The F90 fire protection windows manufactured by our company, together with the window sashes and window frames, meet the official fire protection requirements of fire resistance class F90.

 

Fire protection window F90 for opening

The fact that an F90 window can be opened is not actually the rule. However, our F90 window has a built-in opening function with a window closing mechanism. In the case of an F90 openable window, the fire activates the closing mechanism in the event of an accident with an attached hold-open system. If an F90 window can be opened, it offers clear advantages. If F90 windows can be opened, this makes cleaning work considerably easier. The regular supply of fresh air is also good for the indoor climate. Openable F90 windows are subject to CE labelling. The components of the F90 openable fire-resistant windows are classified in accordance with European specifications and come with a declaration of performance. Our openable fire-resistant windows are certified in accordance with EN 14351-1:2006+A2:2016 and EN 16034:2014 with regard to smoke tightness, fire resistance and self-closing properties. They have opening or cleaning sashes. The F90 windows are equipped with a side, top or bottom coupling with fixed glazing. 

As a rule, F90 windows cannot be opened because their purpose is to form a closed barrier against the fire. They must not allow oxygen into the room to feed the flames or cause a fire to explode. However, if an openable F90 window has a locking mechanism with a hold-open system, its installation is permitted. A fire automatically activates the mechanism that triggers the closing of the window. F90 opening fire-resistant windows have clear advantages in terms of cleaning and the supply of fresh air into the room.

Our joinery has the necessary expertise to produce F90 opening windows and has therefore established itself as one of the few specialists on the market. Our opening fire-resistant windows are certified in accordance with EN 14351-1:2006+A2:2016 and EN 16034:2014 in terms of smoke tightness, fire resistance and self-closing properties.

 

The most important thing: F90 glazing

Our F90 windows have a very special F90 glazing. The panes are filled with gel on the inside. Alternatively, various glass structures, including special glass, are also possible. The F90 glazing costs are correspondingly higher than for a model with lower fire resistance, but they are also much safer.

The special fire-resistant glass has a special physical and chemical composition. This gives the pane its extreme heat and fire resistance. The addition of further functional glazing increases its functionality. Fire-resistant glazing contains fires and prevents them from spreading to other areas. They form a fire barrier and prevent flames from spreading in all directions. At the same time, F90 windows help to keep rescue and escape routes clear and thus save lives. The creation of fire-safe zones also makes fire-fighting and rescue operations easier. The installation of F90 windows is particularly recommended for isolating open fires in areas where flammable materials are stored. This could be a production plant, a warehouse or a laboratory, for example.

The glazing for the F90 windows is available as double or triple ISO, with special glazing such as P4A or P5A on request. Sunbelt A40, A50, A60 and A70 solar control glazing is also available. You benefit from various options for changing the appearance of the pane surface, for example with a PVB film. You decide whether you want to apply a lacquer or enamel finish to the panes of the F90 windows, whether you want to use screen printing or coatings and whether you want a surface finish at all. It is also possible to apply film and stick on glazing bars for F90 windows. 

A special glazing is used in the F90 fire-resistant window, which gives the pane exceptional heat and fire resistance. The F90 window consists of at least two panes of toughened glass, in the cavity of which a transparent gel layer is filled. In the event of a fire, this expands due to the effect of heat and creates a barrier that flames cannot penetrate. Fire protection can be made even more effective with additional safety barrier glass panes or glass superstructures.

On request, our experts can equip every F90 window with Solar control glazing, impact-resistant laminated safety glass or glazing for privacy, heat and sound insulation on. The surface can be visually enhanced with a PVB film, a lacquer or enamel coating and with decorations using screen printing. For example, gluing glazing bars onto the F90 fire-resistant window has a decorative effect.

Windows with fire-resistant glass made of wood and/or aluminium are more heat-resistant than F90 windows with plastic frames. This is because hardwood and softwood can withstand temperatures of more than 200 degrees Celsius, whereas thermoplastics lose their dimensional stability at 110 degrees. Smoke development is relatively low when charring wood; the carbon layer delays the spread of the fire. Materials contained in plastic, on the other hand, accelerate the fire. Apart from this, burning plastic releases toxic vapours.

F90 window in fire wall - is that possible?

In principle, no windows are permitted in the construction of fire walls, as these can pose a considerable risk in an emergency. However, a decisive deviation from this principle is the authorisation of the building supervisory authority for the installation of an F90 window in the fire wall. This exception is all the more acceptable if the window has a mechanism that automatically closes the sash in the event of a fire. Approval for such constructions is the responsibility of the authority, with the affected neighbours being involved in the decision-making process. However, there is no absolute certainty that the neighbour will agree to the installation of a fire-resistant F90 window in the fire wall.

Another aspect that must be taken into account is the court ruling that F90 class fire-resistant windows in the fire wall do not pose a significant risk. This legal clarification contributes to the acceptance and safety of such constructions.

Normally, windows are not permitted in fire walls, as their openings can pose considerable risks in an emergency. However, the installation of a window with fire resistance class F90 is a justified exception. In contrast, conventional glass blocks are unsuitable for this purpose as they are not sufficiently capable of keeping heat out. The inability to control the heat could result in objects on the opposite side igniting themselves.

When building a fire wall with an F90 window, it is essential to ensure the appropriate distance from the neighbour. However, there is no guarantee that the neighbour will fully agree to the installation of an F90 window in the fire wall. Careful coordination and possibly involving the affected neighbourhood in the construction process is required to ensure full consent.

 

F90 glass blocks as an alternative to F90 windows?

There are also fire-resistant glass blocks in fire resistance class F90. These are fire-resistant and provide structural strength and stability. F90 glass blocks are available in various designs. In contrast to our F90 windows, glass blocks do not have a ventilation or cleaning function. However, the installation of glass blocks requires a high level of expertise and is correspondingly expensive. Many customers therefore prefer to opt for our high-quality F90 windows. 

Instead of fire-resistant windows, the installation of glass blocks with the same fire resistance class is an option. These are available in different versions. However, the F90 glass blocks only allow light into the room, ventilation is not possible. They can only be cleaned from the outside via the façade.

As the installation of the glass blocks requires a high level of expertise, as mentioned above, it is relatively cost-intensive. Many customers prefer to opt for F90 fire-resistant windows as a cheaper option that also offers greater convenience.

 

How to find the right fire protection windows

We offer you a large selection of various fire protection windows. The F90 windows owe their enormous adaptability to their almost invisible design. They blend harmoniously into their surroundings. We manufacture the F90 windows especially for you according to your wishes. This results in customised solutions that perfectly match your building and project. Our F90 windows undergo regular fire tests at various test centres in Germany. We use alternative types of wood and minimised profile cross-sections to manufacture our F90 windows.

It may seem strange at first that an F90 window is made of glass and wood. However, unlike plastic, wood and aluminium are well suited to the manufacture of fire-resistant windows. Hardwood and softwoods are more fire-resistant than plastic. They can withstand temperatures of more than 200 degrees Celsius, whereas thermoplastics already change their shape at 110 degrees. Hardwoods and softwoods smoke less and form charring on the surface. Glass panes set in wood break much later. The kindling of the fire through additional oxygen supply is delayed. While a layer of carbon forms on wood, which ultimately slows down the fire, the substances contained in plastic accelerate the fire. Burning plastic also releases toxic vapours. Special fire protection measures additionally increase the resistance of the wood on the F90 window. 

 

F90 fire-resistant windows for greater safety in buildings

F90 fire-resistant windows make a significant contribution to increasing building safety. Unfortunately, we hear all too often in the media about building fires, which can result in serious damage to property and personal injury. Reason enough, therefore, to take precautions in good time and install F90 windows. F30 windows (fire-retardant) and F60 windows (highly fire-retardant) offer effective protection for 30 and 60 minutes respectively, with the F indicating the fire resistance duration of the fire-resistant glazing. F90 fire-resistant windows, on the other hand, offer protection against heat radiation, smoke and flames for 90 minutes in the event of a fire, depending on the area of application. Unlike standard safety glass, the fire-resistant glass for F90 windows has been extensively tested to ensure that it can withstand the temperatures reached during a fire without shattering and provides effective protection for a certain period of time. It does not matter whether the fire comes from outside or inside - F90 windows form an effective barrier for the defined time.

F90 fire-resistant windows - a worthwhile investment

In areas where a large number of people are regularly present or in production facilities where there is an increased risk of fire, the installation of fire-resistant windows is mandatory. The building authorities decide which fire resistance class these must have based on the individual circumstances. High-resistance fire-resistant glazing is absolutely essential wherever escape routes are difficult to pass due to tight building development.

From a purely safety point of view, it is always worth installing an F90 window. If there are many people in a building at the same time, the fire-resistant F90 fire protection windows help to prevent panic in an emergency, as rescue and escape routes remain clear. This makes evacuation much more coordinated and effective.

Our fire-resistant glazing meets the strict criteria of DIN 4102-13 in accordance with European harmonised standards and offers highly effective protection against fire and heat. In particular, they prevent fire flashover in border and corner buildings.

F90 fire-resistant windows can be used wherever increased fire protection is required by building regulations. This is the case in public facilities such as schools, hotels, administrative buildings, shopping centres, production facilities or office buildings where large numbers of people are present. Fire-resistant glazing is also necessary if fire protection and escape route aspects stipulated in the building regulations have to be taken into account, for example in the case of narrow buildings. However, F90 fire-resistant windows are also becoming increasingly important in private residential buildings in order to provide efficient protection for property and, in particular, for human life. Our fire-resistant glazing for F90 fire-resistant windows meets the strict criteria of DIN 4102-13 in accordance with European harmonised standards and offers highly effective protection against fire and heat. The prices for F90 windows are higher than for conventional glazing, which has no radiation and shatter-proof properties. The F90 fire protection windows from Tischlerei Beelitz prevent flashover, which is relevant in border or corner buildings, for example, so that rescue and escape routes are guaranteed.

Even if we rarely think about the risk of fire in everyday life, it is omnipresent. It is not uncommon for a little carelessness or a technical defect to have devastating consequences. Adequate fire safety precautions are particularly important in industrial and commercial enterprises as well as in public facilities with regular public traffic. Here, it is not just a matter of personal safety, but also of protecting the general public or a large number of people who are usually present in the building. This makes it all the more urgent to maximise protection in such buildings and parts of buildings. Even if the planning permission authority F30 or F60 window is considered sufficient in some areas, it is worth considering the installation of F90 windows.

Windows in this fire resistance class protect against the spread of fire, heat and smoke for 90 minutes and, above all, keep the emergency rooms clear for rescue teams. It takes a maximum of ten minutes from an emergency call until the fire brigade arrives at the scene. The fire is extinguished just as quickly if it is a fire of normal dimensions. However, it usually takes some time before a fire is even noticed. If highly flammable or explosive substances are stored on company premises, a fire can quickly get out of control if there is insufficient protection. The F90 fire protection window provides enhanced protection that significantly minimises the risk of personal injury and damage to property.

Properties of the F90 fire-resistant windows

The F90 windows consist of a special F90 glazing with a fire-resistant composition. In an F90 window, fire-resistant glass with at least two panes of toughened glass is used, and the cavity between the individual panes is filled with a transparent gel layer. In the event of a fire, the interlayer of F90 windows reacts to the heat and expands, creating a barrier against the heat of the fire. The values and layers depend on the requirements of the property, but additional safety barrier glass panes are more effective in protecting the building from the effects of heat. Various glass structures are also possible for F90 windows, including special glass. F90 windows are also made of wood and/or aluminium. These materials are more heat-resistant than plastics, for example, and in combination with the special fire-resistant glass ensure that the spread of fire in the building can be contained at least until the fire brigade arrives.

Fire protection window F90 for opening

Fire protection regulations usually ensure that fire protection windows are not intended to be opened. The main reason for this is that protection against fire is usually only guaranteed if the fire protection windows are closed. However, many suppliers who have F90 windows in their portfolio do not offer F90 opening fire protection windows. As one of the few specialists, our joinery has established itself on the market with regard to openable fire protection windows. Many customers appreciate the advantages offered by F90 opening fire-resistant windows. As well as making the cleaning process easier, opening fire-resistant windows also make an important contribution to maintaining a pleasant indoor climate through natural ventilation processes. Our F90 openable fire-resistant windows are fitted with a special window closing mechanism that is automatically activated in the event of heat or fire and closes the window again, so that full protection against fire can be guaranteed within a defined time frame. The openable fire protection windows are attractive for both commercial and private customers.

F90 fire-resistant windows according to individual requirements

The Beelitz joinery offers customised solutions for F90 windows for all customer projects - regardless of whether they are for existing buildings or new builds. The F90 fire protection windows not only fulfil the safety aspects mentioned above, but also meet aesthetic requirements. F90 fire protection windows should not only be functional, but also represent a design element. Based on the premise that windows can be defined as the eyes of a building, the fire protection windows from Tischlerei Beelitz are designed to blend harmoniously into the building. All F90 fire protection windows are customised for each customer using high-quality craftsmanship and adapted to the respective requirements. The fine-grained hardwoods or softwoods for the F90 fire protection windows are carefully selected, although alternatives made from a wood/aluminium combination are also conceivable. The portfolio includes not only fixed-glazed fire protection elements, but also F90 opening fire protection windows. There are virtually no limits to the technical design of the fire-resistant windows.

As we manufacture every F90 fire protection window according to customer quality craftsmanship individually, there is a great deal of freedom in its design. You choose your F90 window for a new or existing building according to your visual design requirements. This is because we not only focus on the pure protective effect, but also on the aesthetics of the windows. Our carpenters pay particular attention to the integration of the F90 windows into the façade of the building. This is why we offer you the choice between pure wooden frames made of fine-grained hardwood or softwood, which are very favourable in the event of fire, and a combination of wood and aluminium. The frames can be customised in any colour and the panes can be given any desired decor. In addition to fixed glazed fire protection elements, our joinery also offers F90 opening fire protection windows, which are characterised by major advantages in terms of room ventilation and cleaning.

As a renowned manufacturer of F90 fire-resistant windows, we look forward to welcoming you as our customer. We will be happy to answer your questions about F90 windows and advise you on the right fire protection for your building. We stock fire-resistant windows and glazing in various classes. Our range includes the narrowest F90 window with CE marking. This is ideal for fitting out your listed building. Convince yourself of our fair F90 window price and arrange a consultation today!

Pricing of F90 windows at a glance

If customers decide in favour of our F90 windows, there are several factors to take into account with regard to pricing. In addition to the number and size of the F90 windows, the calculation takes into account the desired opening method, any additional equipment for the glazing of the F90 windows and the costs for professional installation. The choice of frame is also relevant, as is the choice of sash variants, the number of laminated panes, the inclination or degree of glazing surface and the overall thickness of the fire-resistant windows. The automatic window closing mechanism for openable fire-resistant windows can also be concealed for an additional charge. The investment in F90 windows represents a long-term increase in value for every property, despite the price intensity. The Beelitz joinery is happy to accept customer enquiries and provide a non-binding quotation on request.

 

Interested? We look forward to hearing from you!

As one of the most renowned manufacturers of F90 fire-resistant windows, we look forward to welcoming you as our customer. We will be happy to answer your questions about F90 windows and advise you on the right fire protection for your building. We stock fire protection windows and glazing in a wide range of classes. Our range also includes the narrowest F90 window with CE marking. This is ideal for fitting out your listed building. Convince yourself of our fair F90 window price and arrange an appointment today. Consultation appointment. See you soon!

Your team from the Beelitz fire protection joinery

Can F90 windows be opened?

Yes, an openable F90 fire protection window offers enormous advantages. Cleaning the window is also much easier. 

What does F90 glass cost?

As F90 is a higher fire protection class, the prices are also higher. The prices are calculated per square metre.

Who is authorised to install F90 windows?

Only certified specialist companies are authorised to install fire protection windows, as is the case in hospitals or school buildings, for example.

What does F90 fire protection mean?

F90 stands for a fire resistance of 90 minutes.