Everything about fire doors and their uses

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Building safety is one of the most important things to pay attention to in construction. In the last few years, building fires have spread a lot and all these issues are due to the lack of use of fireproof elements in building construction.

But among all the devices and tools that are used to prevent fire in the building, fire doors are the best devices.

A Fire-rated door can make the building much safer against fire events.

But how much do you know about the features of a Fire-rated door? Do you know how they work? Do you know their main and basic use? In this article from the Rasta Choob website, we want to talk about fire doors and tell what features each one has. If you decide to buy Fire-rated door, we recommend that you read the rest of this article.

What is Fire-rated door?

The main question here is what are fire doors. As it is clear from their name, these doors can withstand fire well and give the residents of the burning building the opportunity to escape or save themselves.

These types of doors can usually resist fire for up to 2 hours and thus prevent the fire from spreading to other parts of the environment. Most of the time, the frame of these doors is made of steel. Their cover is made of steel sheet, which has been painted with oven color.

But in order to increase the strength of Fire-rated door, refractory stone wool is also used in its structure, which is considered a kind of thermal insulation and can withstand up to 4 hours at a temperature higher than 800 degrees Celsius.

Also, the surrounding of the door is covered with fireproof rubber so that the smoke from the fire does not penetrate inside and does not lead to suffocation of the residents.

Fire doors are usually installed at the foot of emergency staircases to provide maximum protection for residents.

To view types Fire doors Click along with their technical specifications.

Application Fire-rated door

As its name suggests, the main use of Fire-rated door is to prevent the spread of fire to other parts of the building.

But in general, it can be said that fireproof doors are used in 4 places:

Emergency exit doors of residential and office buildings and of course hotels: These types of fire doors are very common and the lives of residents depend on them.
Doors of vaults and warehouses: It is very necessary to use Fire-rated door in such buildings and environments because valuables and items are stored in them, which must be secured.
Hospital doors: It is natural that in the event of a fire in the hospital, the process of evacuating patients may take time because the patients do not have enough physical strength. But using Fire-rated door gives residents enough time to get out.
Power plant doors: Fire reaching electric generators can cause huge explosion risks. That is why the use of Fire-rated door becomes obligatory and necessary.

Fire-rated door

Technical characteristics Fire-rated door

Each Fire-rated door must have a series of features and specifications that we have listed below:

Must have a license from the fire department and safety services.
To withstand the temperature 1200 degrees Celsius.
Resist fire for 120 minutes.
Do not ignite during fire.
prevent the transfer of smoke and toxic substances contained in it into the environment.
No toxic and irreversible substances are used in its structure and it is so called pro-environment.
It is well insulated (refractory stone wool with a density of 80 is used and its thickness is such that it resists sound and heat and does not allow fire to penetrate to other floors).
It has used fireproof electrostatic paint for its coating.
Two layers of steel sheet with thickness 1.5.
The hinges are reinforced and laminated.
These fireproof doors must have 3 number of steel hinges with dimensions 180 and 140 that can be adjusted and adjusted.
It is necessary to use fireproof sealing rubber around the door in order to prevent the transfer of smoke into the environment.
Door dimensions can be ordered. Most of the time, the standard dimensions are Fire-rated door 115 in 210 cm.
The door frame is made of a steel sheet with a thickness of 2 mm and has two flat and patterned models.
Fire-rated door can also be produced outside the standard dimensions.
Inside the Fire-rated door frame, a steel sheet with a thickness of 1.5 mm should also be used.
Fire-rated door must have after-sales warranty.
Fire-rated door tools and accessories must be of the best quality (usually Kale or Duff Turk anti-panic).
Fire-rated door handles should be opened quickly and easily (if the door is locked).
The weight of the doors should be light (max 120 kilograms)
The paint used in fireproof doors should expand against fire and create a fire-resistant layer.
The chimney sealant should also be resistant to heat up to 800 degrees Celsius.
Be able to install glass on Fire-rated door.
It can be made in different types of wood and metal.
All Fire-rated door fittings must have a fireproof standard.
These doors must be produced according to the S standard.
When buying Fire-rated door, be sure to have the fire department's approval.

General specifications of fire doors

In addition to the technical specifications, there should be a series of technical characteristics regarding fire doors, which we briefly mention:

Must have a fire test report from the Municipal Building Research Center.
Have the approval of fire test stations from important international centers.
Fire-rated door After closing, it should prevent the transfer and spread of fire and smoke to the other side of the door.
It has all self-closing systems, door closer system and standard anti-panic handles.

Fire-rated door frame dimensions approved by the fire department

In general, we have two types of standard dimensions that are also approved by the fire department:

112 in 211
107 in 211

An important thing to keep in mind is that sometimes the dimensions of your door frame do not match the standard dimensions. In such a situation, you can order your Fire-rated door. Of course, never forget that the door fittings you want must have the best quality. It must be equipped with door closer hydraulic jack and its handles are fireproof.

Fire-rated door double-leaf

Standard size Fire-rated door metal with double-leaf

If we want to name a standard and suitable dimension for Fire-rated door, we should refer to the dimensions of 211 in 202. These doors are standard in all respects. But there are other types of fire doors available in the market, which are made of metal and double-leaf. For this reason, their installation is time-consuming and more difficult.

Of course, in terms of technical and standard features and specifications, these double-leaf metal doors are also similar to ordinary fireproof doors.

The most important thing about fire doors is that they are always closed. Another number of Fire-rated door designs are in such a way that they close automatically during a fire.

These features are very important because during a fire, it is necessary for the door to function properly. For this reason, the operation of the door should be checked constantly in terms of opening. Also, if the door is blown or the lock has a problem, they should be repaired immediately.

Of course, some other fire doors are designed in such a way that they are connected to the fire fighting system with a magnetic magnet and open as soon as a fire occurs. If the power goes out or the fire system is activated, these doors will also be closed.

How to install Fire-rated door?

In general, there is no big difference between installing a normal door and these types of doors. But the important thing that you should always keep in mind is that it is installed correctly and completely accurately on its own frame. If there is a gap between the wall and the door frame, you must fill it with fire-resistant materials.

Installation of fire doors is also done by door installers or carpenters. For this reason, it is considered a specialized work and you cannot do it alone.

How is Fire-rated door reviewed and repaired?

Annually, you should check the operation of Fire-rated door and make sure it is working properly. In general, you should pay attention to the following points in these annual reviews:

First of all, make sure that there are no cracks or seams on the door structure or its frame.
If you have used glass on the door, make sure it is not cracked or broken.
There should be complete coordination and balance between all door accessories and none of them should be damaged.
There should be no breakage in any of the devices and components of the door.
The function of the Fire-rated door strap itself works properly. You can test this feature by opening the door first and see if it closes on its own!
When the door is closed, the metal latches do their job properly.
All secondary metal devices used in the door system will not prevent the correct operation of the door.
No changes have been made in the operation of the door. No label has been removed.
If a sealant is needed, install it on the door system.

In the end, we must say that the process of reviewing and checking Fire-rated door is very important and necessary and must be done annually by the building owner. If you see any failure in one of the components of Fire-rated door, we recommend that you repair it as soon as possible. Fire doors are the first step for the safety of the residents of a building.

See: How to replace old doors with anti-theft doors

last word

Although fire doors are very effective and are used in different places, always remember that they also need care. Also, take their installation seriously and buy the best Fire-rated door so that you don't have any problems later.

Collection Rasta Choob, has been working in the field of production and supply of fireproof doors for many years. All materials used in these doors are fireproof and you can be sure of their quality. You can visit our contact page for more information. Our colleagues at Rasta Choob are ready to answer all your questions.

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