According to fire services, a significant portion of household fires start with curtains and drapes. Therefore, it is rational to install a protective barrier for fire and smoke in window openings and passages.
The peculiarities of materials for the production of fire curtains make it possible to combine flexibility comparable to fabrics and simultaneous fire resistance. Resistance to fire and heat ensures not only the impermeability of the base coating, but also the filler. Physical properties filler - a thermoactive composite material that expands in response to an increase in temperature. Thin fire curtains quickly turn into significant, almost centimeter-long protection against heat flow.
The presence of a control unit for fire curtains saves the precious seconds required to open them. The ability of the fiberglass material to be flexible and pliable is ensured by the embedded metal wire. When folded, the fire curtain is placed in a steel casing. The fiber is wound onto a shaft and, by pressing buttons, returns to its original state. If open position fire curtains is the recommended fire safety standards, this action will have to be performed frequently and the presence automatic system will be extremely useful.
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In rooms with an auditorium with more than 800 seats, fire-retardant curtains must be installed. The presence of such a screen is a safety requirement laid down in current regulations. Its task is to obtain a certain amount of time in order to:
- organize the evacuation of people from a burning building;
- localize the source of the fire.
Cost of fire curtains
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*Please note that the above calculation is valid for basic design. The exact cost can be found out after completing the application.
To calculate the cost use the special form or call the contact numbers provided.
You can also order a call back, and we will get in touch and answer any questions you may have.
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What is a fire retardant curtain?
The OLEMATH company produces fire curtains, which are heavy steel structures. They are lowered by a powerful electric drive.
Why are fire curtains needed?
When the screen is lowered, the stage portal opening is completely blocked. In this manner auditorium protected from rooms containing a lot of combustible and flammable materials. This includes scenery and props for performances, wooden stage structures, etc.
During a performance, there is always an increased risk of fire due to the use of a large amount of equipment and sometimes open fire. Fire curtains prevent flames and carbon monoxide from spreading into the auditorium. Visitors are given sufficient time to evacuate safely. Actors and stage workers leave the dangerous place through other prepared emergency exits.
As practice shows, the auditorium fills with smoke in just 1–2 minutes. A fireproof screen prevents the spread of combustion products for different periods of time depending on the material it is made of. The minimum protective period here is 60 minutes, the maximum guaranteed by the manufacturer is 3 hours.
Our company produces and installs fire curtains, curtains and screens of any size. When installing them, a system of counterweights is created to reduce the effort when lifting the screen. The design of the canvas is worked out in such a way that in the absence of a motor it lowers at a speed of no more than 0.4 m/s. This eliminates the risk of injury to people on or near the stage. Sound and light alarms warn of screen movement.
To order a fire curtain, leave us a message or call the numbers provided. We will send a specialist to you free of charge for measurements and more detailed consultation.
Work examples
Left a message and they called back promptly. Talked about the features different curtains(couldn't decide on a choice). And they not only helped to choose the right option fire curtains, but also spoke in detail about the various intricacies of their operation. In the end I chose OLEMAT E 180 curtains.
The order was completed without delay. The delivery didn't disappoint either. As a result, I have no complaints about the work performed. Overall I was pleased. I wish the company prosperity and development.
On behalf of our production company We express our gratitude to the Fire Safety Standard company. Over the years of close cooperation, we have not had any complaints; all situations were resolved quickly and efficiently. We have never failed with deadlines. Subsequent maintenance is carried out efficiently. We ordered the production of fire protection for conveyor openings and smoke curtains.
This is due to the fact that they have a rather small range of possible geometric dimensions, weight, weight of the structure, allowing them to be closed quickly, even with electric drive, in the event of a fire in the protected or adjacent premises. For example, for most manufacturers, the reasonable limit for custom sizes ends at double-leaf fire doors - 2.1 x 2.2; gate – 4.8 x 4.8; 4 x 6. Curtains of the same purpose actually have no restrictions on width/height. In addition, they can be both vertical and horizontal, performed with or without sprinkling the canvas with water for additional fire protection.
They are now widely advertised, being called either simply an excellent replacement for traditional structures for protecting openings in barriers of a capital nature, or even an innovative breakthrough in fire protection during the construction of buildings/structures of grandiose design and complexity of architectural and planning solutions, dividing them into fire compartments , invisible until a critical situation arises with vertical and horizontal curtains that protect adjacent rooms not only from open fire, intense thermal effects; but also from poisonous products combustion. Is this how it really is, what are the real advantages and disadvantages of this new product? It’s worth understanding in detail.
Rules and regulations
To immediately put all the semicolons in place, it must be said that GOST “Fireproof curtains” does not exist in nature today regulatory framework state technical documentation. Numerous manufacturers of domestic products, suppliers/sellers of imported goods, referring to SNiP, GOST, which their products allegedly fully comply with, are, to put it mildly, wishful thinking.
In order to understand this more thoroughly, and at the same time not offend anyone, you need to first of all understand what specific documents were issued government agencies in the field of technical regulation, and why some manufacturers/suppliers sometimes refer (the majority do not do this):
- defining the fire resistance testing method for doors/gates.
- – for the same products for smoke and gas tightness.
- – fire resistance test methods for smoke screens.
Neither in the titles nor in the text of the first two official documents does the name of interest to readers appear at all. The latter is defined below.
From fire terminology: an anti-smoke screen/blind/curtain is a device that prevents the spread of combustion products through the openings of enclosing structures.
Again, not a word about fire curtains, although in terms of their basic design, smoke screens/curtains are closest to them, differing, in fact, only in being less fire-resistant, non-flammable materials, going into their production, with some differences that are not fundamental in this case.
To get through the regulatory bureaucratic jungle and understand why such products are nevertheless legally manufactured, installed and operated, you need to refer to the 2008 document (as amended in July 2015), regulating the technical aspects of industrial safety:
- Art. 37, classifying barriers, introduces another type - fire curtains, curtains, screens.
- Paragraph 2 of this article states that curtains/screens, along with doors/gates, hatches/valves, are divided into types 1, 2, 3, and curtains belong to type 1.
Based on this, fire curtains, as a means of filling any openings in barriers enclosing fire compartments and areas of buildings, are finally officially legalized.
- Materials for the production of fire curtains/screens must be non-flammable.
- In construction, technological/transport openings, barriers separating fire hazardous premises of category B, which cannot be closed with gates/doors, it is allowed to install fire curtains/screens instead.
- Curtains with a standardized fire resistance limit, used in open position, must be equipped with devices that ensure automatic closing in case of fire.
In addition, the “green street” for the use of fire curtains is opened by: , which determines the fire resistance of buildings/structures; regulating the limitation of fire spread:
- Fire curtains refer to building structures that act as barriers.
- In station buildings, instead of walls, it is permissible to use curtains/screens with a fire resistance rating of at least E
- If it is impossible to install in the fences of elevator halls fire doors, then it is necessary to install screens with a limit of at least EI 45, automatically closing openings in the event of a fire.
- The stage portal of the building of a cultural and entertainment establishment, with a hall with a capacity of 800 seats or more, is equipped with a fire-resistant gas-tight curtain made of non-flammable thermal insulation materials with fire resistance no less than EI
- Windows/openings of projection/control rooms opening into the auditorium are protected by curtains with a fire resistance rating of at least EI
In practice, manufacturers of curtains, as well as doors/gates, develop the design themselves, detailed technical specifications for the production of serial commercial products, and after passing full-scale tests for fire resistance, smoke and gas resistance, they receive the appropriate certificates of compliance with industrial safety regulations. Without such documents, these curtains cannot be considered as fireproof products, but are considered best case scenario devices for protecting/draping building openings, while retaining heat well in the room.
Device and how it works
From the very beginning, it is necessary to distinguish between the following products: fire curtains and smoke curtains/screens.
The first are designed to fill openings, blocking the path of fire, intense heat flow, partially or completely combustion products into adjacent rooms; the second - to completely block or partially limit the spread of smoke flow.
The next difference: fire curtains completely cover the construction, technological/transport opening in the barrier, providing the fire resistance limit required by the standards. Smoke curtains/screens, also sometimes called curtains, can be lowered either completely; and the height of the smoke layer formed in the protected room, determined by calculation.
In addition, a fire/smoke curtain/screen, unlike a curtain, may not have side guides in the body of which the fire-resistant fabric moves. The protection of the opening is ensured by the calculated excess of the geometric dimensions of the canvas vertically and horizontally in relation to the area of the opening.
Example: clause 5.4.5 of SP 4.13130.2013 directly states that a fire curtain separating the stage portal of a theater with a number of seats of more than 800 must, when lowered, cover the construction opening from the sides by no less than 0.4 m, from the top by 0, 2 m, while ensuring gas tightness.
The design of a fire curtain consists of the main elements/parts:
- Lateral U-shaped guides made of galvanized or of stainless steel, in which the canvas moves down/up.
- Cloth with a thickness of 3 to 7 mm, wound on a shaft. Typically this is composite material made of heat-resistant fabrics, such as fiberglass, reinforced with metal thread. To give additional properties, increasing the limit of resistance to fire, exposure high temperature a heat-reflecting and/or thermally active/rapidly intumescent coating is applied to the canvas. Heat resistance of the fabric various types reaches significant values - up to 1100℃.
- One or more shafts, with a blade tightly wound on it, driven by an electric motor that lowers it. Roller blinds moving with an average speed of 0.1 m/s.
- The electromechanical part is enclosed in a protective casing/casing made of steel, located at the top of the entire structure. In general, the appearance of a fire curtain is very similar to protective blinds that cover windows, doors of shops and offices located on the first floors of buildings at night. Only instead of stacked metal strips there is a reinforced fire-resistant fabric.
- A lower tire filled with weights ensuring its weight is not less than 4 kg/p. m. This ensures the necessary tension of the canvas in all fixed positions, as well as during lifting/lowering.
- Cloth clamps in raised/working condition.
- A control unit connected to the building's alarm system to ensure automatic startup when an alarm is received.
In “standby mode,” the fire-resistant curtain fabric is rolled up inside protective casing, usually only the edge of the lower tire is visible, which does not spoil appearance opening; familiar to staff and visitors, by analogy with the widespread security blinds.
When smoke, heat detectors, or flame sensors are triggered, a signal is sent to the control unit of the fire curtain, and it automatically begins to fall, closing the opening, while the lower heavy edge - the tire - ensures tight contact with the floor surface.
As a result of this timely limitation of the spread of fire that began inside the protected premises. Due to the natural reduction in oxygen content during the combustion process, the lack of influx fresh air, the release of a large amount of gaseous products, a decrease in temperature, and the fire often goes out on its own. In other cases, even a fast-growing fire is not able to overcome such a seemingly not very serious obstacle.
The most common fire curtain EI 60/EI 30 is supplied to customers. The specific choice depends on which product, with which standardized fire resistance limits for structural integrity, ability to not allow intense heat flow from a fire to pass through, as indicated in the specification project documentation. Typically, these indicators are quite sufficient to fill the majority of construction volumes in fire barriers.
Products with standardized fire resistance limits EI from 90 to 180 are much rarer, are usually made to order, and the most often cited examples of the possibility of their production by a company are an advertising ploy, which is only part of a campaign to attract customers/clients and nothing else.
Attention: sometimes, by mistake or as a result of intrusive but illiterate advertising on the websites of suppliers/intermediaries, fire curtains are sold as roller curtains, sectional doors, assembled from metal strips with thermal insulation filling, as well as curtains/screens assembled “in an accordion” without side guides. Despite the external, some structural similarity, they are not fire curtains.
Features of choice
To do this, you need to clearly define and outline the scope of application of such products, which are intended for the following cases/purposes:
- To protect large openings that cannot be filled fire gates and doors.
- Dividing into fire compartments huge in area, construction volume, complex in layout public and industrial premises/buildings, including various stations, shopping centers, warehouse complexes, museums, theaters, covered parking lots.
The advantages of choosing fire curtains as filling in fire barriers include the following:
- Using them, you can divide rooms or buildings into compartments, sections or zones of almost any configuration or area. For example, if the opening width exceeds 5–6 m, then the curtains are made of several overlapping panels, allowing you to reliably protect any opening - from the door to the portal.
- The use of fire curtains has little impact on the interior design of the premises, especially since metal guides, protective housing and even the canvas can be painted to order in the desired color.
- Unlike swing, sliding/sliding, lifting fire protection products, curtains do not reduce the usable volume of the room.
- There are types of curtains with horizontal forced unfolding of fire-resistant fabric to protect large open openings in the floors of buildings, which gives architects and designers new opportunities to increase the volume of buildings without deviating from current fire safety standards.
- The use of water irrigation, which is structurally part of the product, allows us to provide a reliable additional line of protection from fire and smoke.
Installation and assembly rules
products are mounted inside the opening, if its dimensions allow; or above the opening, in order to leave the passage/passage through it completely free.
Important: installation, maintenance, repair of fire curtains, as well as other types, types of filling of openings in capital barriers with a standardized fire resistance limit - gates/doors, valves, curtains/screens, hatches, can only be carried out by specialized enterprises/organizations that have the appropriate license Ministry of Emergency Situations.
Practice, coupled with statistics, convincingly shows/proves that doing things on your own in such serious issues related to the safety of people in buildings is often too expensive.
Considering that there are different kinds fire curtains, find best option from finished products standard sizes or order a non-standard product for your premises/building, conclude an installation agreement, servicing the customer will not be difficult and will require a minimum of time spent.
Modern fire safety systems are characterized by a certain complexity. So, when putting a particular object into operation, they try to provide it with several fire-fighting elements in order to minimize damage in the event of a fire and its further development into a fire.
The most universal elements of complex fire protection systems are fire curtains and veils. These are special fire-resistant barriers, the task of which is to localize the flame, and often to prevent the spread of smoke and other combustion products throughout the territory (smoke-proof fire curtains and veils, curtains and screens).
Structurally, fire curtains and veils are a canvas that is mounted on a shaft on one side, and a heavy cut-off bus is located on it on the other. The canvas moves along guides, which can be fixed to the sides of the opening, or to any other flat surface. Part of the design of fire curtains and curtains, curtains and screens is a protective box, which is mounted on top of the shaft and protects the shaft, as well as the fabric laid on it, from physical damage, and also gives the entire structure an aesthetic appearance.
One of important elements, which fire curtains and veils have is a rotating drive shaft on which the sheet is laid. As a rule, the drive is made of a shaft or intrashaft with a reversible motor, and it can be connected to both a regular network and a network with reduced voltage, up to 24 volts.
Fire resistance of fire curtains and curtains.
Fire curtains and curtains, curtains and screens, as well as fillings of fire-resistant barriers - gates, doors, windows, hatches, valves (see more about the classification of fire-resistant barriers and fillings of fire-resistant barriers in this material) Federal Law 123-FZ “Technical Regulations on Requirements fire safety" regulates the limit states that determine the fire resistance limit of a fire barrier/filling of a fire-resistant barrier. Regarding fire curtains and veils, curtains and screens, 123-FZ “Technical Regulations on Fire Safety Requirements” establishes the fire resistance limit:
- for fire-resistant curtains and curtains, curtains and screens, as well as doors (excluding doors with glazing of more than 25% and smoke-gas-tight doors), gates, hatches, valves for loss of integrity and loss of thermal insulation ability due to reaching maximum (critical) temperature values on the surface - EI 15, EI 30, EI 60 depending on the type;
- for fire-resistant smoke-gas-tight curtains and veils, curtains and screens for loss of integrity, loss of thermal insulation ability due to the achievement of maximum (critical) temperature values and/or maximum (critical) heat flow values on the surface at a regulated distance from the structure/obstacle/obstruction filling and smoke and gas tightness - EIWS 15, EIWS 30, EIWS 60 depending on the type.
The EI or EIWS parameters determine the time after which one of the following may occur. limit states fire resistance violations. For example, Latin letter E stands for loss of integrity of the fire barrier/fill of the fire barrier, while E 60 tells us the time after which this can occur. The Latin letter I denotes the loss of thermal insulation capacity due to reaching the maximum (critical) temperature values on the surface, the letter W - the loss of thermal insulation capacity due to the achievement of the maximum (critical) values of heat flow at a regulated distance from the structure/obstacle/obstacle filling, the letter S - loss of smoke and gas impermeability, and the EIWS value of 60 indicates that the thermal insulation ability of the curtains and smoke and gas impermeability may be impaired after 60 minutes in one of the limit states.
Fire-resistant curtains and curtains have high fire resistance because a special material is used in the manufacture of the fabric, usually glass or silica fiber, due to which the fabric not only has fire resistance regulated by 123-FZ, but also remains flexible and at the same time durable.
Fire curtains and veils can be used to solve the widest range of fire engineering problems - to protect openings in which windows and doors made of materials that support combustion are installed, to fencing emergency exits, stairs, platforms, etc. Thanks to the articulation of the canvases, the design forms a unique a cube that allows you to completely localize a particular area of the territory, as well as protect it from the spread of smoke and other toxic substances harmful to the life and health of people.
