Different Fire-Rated Door Types and Their Characteristics

Fire-rated doors play a critical role in ensuring the safety and security of buildings by containing and preventing the spread of fire and smoke. These specialized doors are designed and constructed to meet stringent fire resistance standards and regulations. In this article, we will explore the various types of fire-rated doors by the best fire-rated door manufacturers in Mumbai available in the market and delve into their unique properties and characteristics. 




 1. Wooden Fire Rated Door


Fire-rated doors constructed from Hardwood Mirandi/Teakwood, measuring approximately 120mm and 70mm in width, consist of shutters ranging from 52mm to 76mm. A hardwood interior timber structure is combined with a calcium silicate board within the door to ensure fire resistance. Additionally, both the frame and shutter are intumescent sealed to prevent any gaps.


2. Steel Fire Rated Door


A steel fire-rated door is entirely sealed along the frame with an intumescent seal and is lined with a fire-resistant material, such as Rockwool. When exposed to fire, this seal enlarges, successfully limiting and halting its progress. A door closer is frequently placed to make sure the door stays closed tightly on doors that lead to stairways or act as fire escape exits.


3. Wooden Fire Rated Cum Acoustic Door


Acoustic seals are used to reduce the distance between doors and act as a soundproofing barrier. A drop-down seal is used at the bottom of the door to block off gaps needed for movement, and a perimeter seal is utilised around the frame to cover off hinge gaps. Astragal seals are frequently needed on double-leaf doors. Standard-grade acoustic seals, such as the LORIENT seal and Enviro seal, with sound reduction capabilities ranging from 30 to 35 dB, are used to achieve effective sound reduction. Additional seals can be fitted for even more sound absorption. The use of acoustic doors is found in multiplexes and other comparable environments.


4. Wooden Lead-Lined Door


Internal layers in lead-lined doors manufactured of Hardwood Mirandi/Teakwood measure roughly 120 mm by 70 mm. One of these layers is a 2mm (+/- 1%) lead sheet with a 99.9% purity rating. When a commercial ply board is utilised, the doors' shutter thickness on both sides measures 43mm, acting as protective shields. The thickness is increased to 45mm by including a laminate shutter. Lead glasses can also be included in the doors to create vision panels.


5. Steel Lead Lined Door 


The steel frame for the lead-lined doors is made with an NSL 100 50 profile. Galvanised steel is used to build the frames, which are 1.2 mm thick, while the shutters are 44 mm thick. The shutter can be filled with mineral wool or honeycomb for additional insulation and security, and a 2mm lead sheet can be put on top. 1mm galvanised steel is used to construct the shutter itself. We also provide custom-made 200 x 300 mm single-glazed lead glass with 6 x 2 mm dimensions.


The greatest way to strengthen your home's fire protection is to install fire-rated doors. Remember that fire-rated doors are a crucial component of your building's safety and aesthetics. TRIO India, one of the leading fire-rated door manufacturers in Chennai, specializes in producing high-quality fire-resistant doors that meet rigorous safety standards. With a commitment to reliability and superior craftsmanship.





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