Jump to content
Guest EtiveFoxw

How many hinges are needed on a fire door?

Recommended Posts

Guest EtiveFoxw

Hi
I am trying to find out the regulation for the number of fire door hinges that are needed. We have internal residential fire doors with 2 fire rated hinges on each, is that in compliance with regulations?
Thanks
Etive

Share this post


Link to post
Share on other sites

Up to ten years ago, because fire doors are heavy and you do not want then to set or warp, three steel hinges were fitted as standard. However ten years ago a British/European standard was introduced covering single axis hinges called "BS EN 1935: 2002: Building Hardware. Single Axis hinges as relates to Fire doors." which is now the present standard.

The code indicates the suitability of the hinges and if the are suitable for fire doors but you need to study the standard for the full details regarding the number of hinges required but in general three hinges are usually required. Guide to interpreting Markings for Single Axis Hinges.

Check out http://www.firesafe....nd-ironmongery/ for more information on all door furniture.

Share this post


Link to post
Share on other sites
Guest Burke

Hi I have had a loft conversion done and all my doors needed to be changed to a fire door. Our builders have used two hinges per door I have read this is ok and the paperwork that came with the door said two but some websites say 3. can you tell me if two is ok?
Kind Regards

Mrs Burke

Share this post


Link to post
Share on other sites
BS EN 1935: 2002: Building Hardware Single Axis Hinges is the current European standard for single axis hinges and being able to understand the CE markings, provided when purchasing hinges, is of some importance. Guide to Interpreting Markings for Single Axis Hinges.
From the guidance,
Door closers increase the loading on door hinges and their rate of wear. For closers without back-check it is normal to allow for this by assuming the effective door mass to be 20 % greater than the actual door mass. For back-check closers the effect is much greater, and the effective door mass is calculated to be 75 % greater. Timber doors fitted with door closers should normally use three or more hinges.
Door manufacturers may recommend the use of only two hinges under special conditions, if experience allows demonstrating adequate performance of the door.
If the paper work with the door stipulates two hinges then it must have bee tested with two hinges and therefore acceptable.

Share this post


Link to post
Share on other sites
Guest HollyJon

Good Afternoon,

I'm having trouble trying to understand the regulations about door hinges on fire safety/resistant doors. I have one contractor saying one thing and another saying another. After reading numerous regulations and standards I'm still unsure of what is need.

Do door hinges on fire doors need to be fire rated? I've been told they need 3 hinges and 75mm x 100m but do not need to be fire rated if they are BS EN 1935 and CE Marked? I've also been told they do not need to be fire rated if the fire doors have smoke seals and in-tumescent strips?

I'm truly confused and wondered if you could help in simply terms rather than grades and 9 nine coding's. :)

Kind regards,

Holly

Share this post


Link to post
Share on other sites

Yes Holly they do need to be fire rated and in most cases there should be three hinges but door manufacturers may recommend the use of only two hinges under special conditions.

The hinges should be marked with the BS EN 1935/CE marks and maybe other marks like the Certfire marks which indicates they are fire rated. However the only 100% way of knowing the capabilities of the hinges is to have the HINGE DESIGNATION. (see Guide to Interpreting Markings for Single Axis Hinges.)

Check out http://www.safelincs.co.uk/fire-rated-hinges-set-of-3-product-1/

Share this post


Link to post
Share on other sites
Guest Petersim

hi

I'm currently about to fit a bwf fd30 front fire door to my property as it has to be up to regulation standard for council insurance purposes. I'm unsure whether I need to fit 2 or 3 hinges to this door and also may I use a perko style door closer or will it have to be a overhead style closer? if using a perko style closer how do I prove its fire rating for inspection purposes or do I not need to so long as it closes the latched door?

thanks

Share this post


Link to post
Share on other sites

The Perko Powermatic Concealed Fire Door Closer is CE marked and Certifire Approved CF370 also complies to BS EN 1154:1997 therefore it is acceptable the other perkos are not.

If it is a genuine bwf fd30 then it should have documentation that will provide you with all the information you require, plus a test certificate. It will instruct you how many hinges and type, which is usually three but occasionally it could be two, again the documentation will state all this.

The test certificates are your proof and you most probably need it.

Share this post


Link to post
Share on other sites
Guest Sarah

Hi - question if an older style fire door with self closer (no certification) only has two hinges, is it good practice to suggest fitting with 3 new fire rated hinges, or is that overkill?

Share this post


Link to post
Share on other sites

BS EN 1935 : 2002 states " Timber doors fitted with self closers should normally use three or more hinges, if three hinges are fitted the third hinge should be fitted approximately 200 mm below the top hinge in which position it supports some of of the additional outwards bending moment exerted on the top hinge.

Share this post


Link to post
Share on other sites
Guest Oz

Morning, is there any regulations to say that on a fd30 door the hinges have to be set at 6" down & 9" up + centre hinge in the centre.. One of the Chippys on site has done his doors at 6" down & 6" up (not 9") + centre. Is there a problem with that.

Cheers for any help.

Oz

Share this post


Link to post
Share on other sites
Guest Thomas

Hello, I would like to install double door with no frame and no stop doors, I want to use pivot hinges. One door it's gonna be 450 mm wide. Can do it like that? How to make it fire rated? Is it possible? 

Thank you

Share this post


Link to post
Share on other sites
Guest

I replaced a traditional panelled door with a half hour fire door using the existing pair of large 125mm heavy gauge existing hinges. They are perfectly adequate as the fire door is no heavier that the original. Do I have to have a third hinge which would be difficult due to matching the radius of movement of the existing.
Kind regards
Ken

Share this post


Link to post
Share on other sites

It is usual for at least 3 hinges to be fitted on fire and escape route doors. With fire-resisting doors becoming heavier, there is a practice to fit two hinges at the top of the door with the third hinge at the bottom of the door. It is unsafe to alter the “as tested” position of a hinge on a fire door, without assessment from a suitably qualified authority. One reason for a third hinge is not only to support the door but to prevent warping. 

Check out http://firecode.org.uk/Code_of_Practice_hardware_for_fire_and_escape_doors.pdf

Share this post


Link to post
Share on other sites
Guest kateesp

I live in a flat in a converted building (1920s) and have been told I need to have rising butt hinges , intumescent strips and concealed closers on my flat's front door but most of the research I've done says not to use rising butt hinges....help!

Share this post


Link to post
Share on other sites
Guest Wrighty

Can I ask what is meant that manufactures may recommend the use of two hinges under special conditions, what would the special conditions where two would be acceptable, everything I read suggests fire doors should have at least three hinges, but I've read that the BS EN suggests what I mention above about two can be acceptable under certain conditions, can I just confirm what BS EN refers to that, and what exactly are the special conditions, not having access to any BS EN I'm struggling to find out an answer.

any advice much apprciated

 

Share this post


Link to post
Share on other sites

EN 1935 states that timber doors fitted with self closer (S/C) should normally fitted with three or more hinges. There is a notes that says door manufacturers may recommend the use of only two hinges under special conditions if experience allows to demonstrate adequate performance of the door. 

My interpretation would be any doors that use S/C needs three hinges and fire doors to cupboards may use two hinges on the advice of the manufacturer.

Share this post


Link to post
Share on other sites
Guest Thank you for that
On 29 August 2016 at 10:22 PM, Tom Sutton said:

EN 1935 states that timber doors fitted with self closer (S/C) should normally fitted with three or more hinges. There is a notes that says door manufacturers may recommend the use of only two hinges under special conditions if experience allows to demonstrate adequate performance of the door. 

My interpretation would be any doors that use S/C needs three hinges and fire doors to cupboards may use two hinges on the advice of the manufacturer.

 

Share this post


Link to post
Share on other sites
Guest Building Control

one of the main reasons 3 hinges are required is that a door will bow out under fire (test) conditions and therefore fail the requisite fire test. The third hinge limits this tendency

 

Share this post


Link to post
Share on other sites
Guest Doorguy

Hi 

i have a customer who wants a double set of door fd30 to open and fold back to the wall can this happen and what hinge would you recommend. 

Share this post


Link to post
Share on other sites

Hi Doorguy,

Assuming these are cupboard doors FDKL. You need to use 'projection hinges' and as its a fire door they need to be CE marked BS EN 1935 compliant fire rated ones. Depending on the size of the doors a minimum of three hinges are required for each leaf.

 

Projection hinges.PNG

Share this post


Link to post
Share on other sites

Your content will need to be approved by a moderator

Guest
You are commenting as a guest. If you have an account, please sign in.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×