What is the lowest acceptable melting point of hinges on a fire door?

All fire resisting doors should be a close fit to the frame with a maximum gap of 5mm. They must be hung on metal hinges (minimum 3 hinges per door) with a melting point of not less than 800 degrees Centigrade.

What is the minimum number of hinges that should be on a fire door?

Any fire door will have a minimum of three hinges. Intumescent may be required, so it is important to check certification.

What grade hinges for fire doors?

Grade 1: suitable for fire/smoke resistant door assemblies subject to satisfactory assessment of the contribution of the single-axis hinge to the fire resistance of the specified fire/smoke door assemblies.

Why do fire doors need 3 hinges?

Because of the weight of a fire door and to prevent it warping, fire doors are usually fitted with three fire door hinges.

Where do you put hinges on a fire door?

Positions: The top hinge must be positioned 120-180mm down from the head of the leaf to the top of the hinge and the bottom hinge positioned 200-250mm up from the foot of the leaf to the bottom of the hinge.

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Is it a legal requirement to have fire doors?

What are the legal requirements for fire doors? Building Regulations specify that in homes over two storeys high, every door of a habitable room leading to a stairwell must be a fire door (this does not apply to toilets or bathrooms). Fire doors are also required between the house and integral garage (if applicable).

What should you never do to a fire door?

Never leave a fire door wedged open

Apart from the obvious consequence of potential loss of life, or injury, and damage caused by a fire spreading throughout a building, it is actually illegal for a fire door to be propped open. As such, all fire doors MUST be fitted with an automatic closing system.

Do all fire doors require 3 hinges?

Usually at least 3 hinges need to be fitted on a door. … Fire Regulations require fire doors to be fitted with 3 hinges (which must be 4 inch fire certified hinges). For doors over 2200mm tall, then four hinges can be used to prevent warping.

Can you use self closing hinges on fire doors?

As of 6th April 2007, it is no longer a building regulations requirement that a self closing device, such as a perco or spring hinges, be fitted to internal fire doors in dwellings. It has become the responsibility of the occupants to ensure that fire doors are closed at night.

What does grade 13 on a hinge mean?

Grade 13 Ball Bearing Hinge, Square (Max Load 120kg). The most popular type of door hinge on the market today. These are a perfect choice for when you have doors of 40mm or 44mm firecheck, internal or external. They have a CE mark and are Certifire tested. Suitable for industrial, commercial and domestic use.

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What is Grade 7 door hinge?

Grade 7 Ball Bearing Hinge (Max Load 40kg). They have a CE mark and are Fire door rated. … Suitable for standard internal residential doors a pair of hinges is adequate; however fitting 3 hinges per door has its advantages.

Are ball bearing hinges self closing?

Ball bearing hinges are an upgrade from heavy duty hinges and are also constructed of thicker material. There are three styles of door hinge corners. Square, 1/4″ radius corner, and 5/8″ radius corner. … Spring Door Hinges are used to create a self closing door.