[Grade 2 listed building]

Historic England have published guidance with particular reference to timber-based heritage doors here:  https://historicengland.org.uk/images-books/publications/fire-resistance-historic-timber-panel-doors/

[Thickness for fire door check stops]

Where the fire door is so critical to the fire strategy at the building that it is desirable to upgrade the fire performance of the door. Consider that all timber-based fire doors have had intumescent seals for around the past 30 years now.  So why wouldn't you fit them to a fire door?

[Unusual Fire Door Symbol]

Its a manufacturers' plug used by Leaderflush.  Contact http://www.leaderflushshapland.co.uk/Contact-Us  for more info.

[Cross corridor doors]

Regulation 10:  https://www.gov.uk/government/publications/fire-safety-england-regulations-2022/fact-sheet-fire-doors-regulation-10

I would interpret this to mean the 'total height of all storeys combined'.

[distance between door frame and wall]

Yes 35mm is too big a gap.  If using fire foam make sure it complies with the requirements of BS 8214: 2016 Timber-based fire door assemblies - Code of practice.  The gap requirement depends on the materials you are using to fill the gap, BS 8214 guidance based on using mineral fibre tightly packed and capped with intumescent acrylic mastic on both sides states 20mm as the maximum gap but refer to the Standard so that you can demonstrate compliance.

[Door closer regulations circa 1998]

Building Regulations would have applied to fire doors in 1998 and most likely flat entrance doors would need to have been self-closing at that time.  Contact a reputable building regulations consultant for advice.

[Fire doors in a domestic 3 storey house]

Contact an independent building regulations consultant for advice.

[Fire Doors in Metallic Door Frames]

It depends on the door leaf you use.  Consult the technical/certification data sheet for the door leaf and it will tell you the door frame requirements. Stick to that and you can retain product performance certification for the door assembly but if you deviate that, the certification may be void.

[Fire doors in office.]

Clearly its impossible to be comprehensive in terms of answers without inspecting the doors, but to answer your questions generally:

1) The corridor double Doors do not close into the frame as I believe there is some air pressure keeping them open. Can the door closer be adjusted to suit or would a more powerful closer be needed.   A) Initially check for 'door-binding-issues' and wear and tear or damage with the hinges.  Resolve any issues before adjusting the self-closing device. Consult a reputable self-closer manufacturer for advice before procuring a replacement.

2) The disabled toilet door seems to be a fire door as it has seals on edges of the door but it doesn’t self close. (No closer on door) Would this need a door closer?   A) If its a toilet, does it need to be a fire door?  So check the fire risk assessment for the building.

3) The locks/latches on the timber doors are not CE marked but are marked UL. Are these compliant?   A) UL are an American owned fire-testing company so check out this webinar https://www.ul.com/resources/various-safety-standards-fire-door-testing-ul-en-bs  and contact the door manufacturer (if that's possible) to see if UL tested/certificated locks or latches are suitable.   Also remember, the requirement for CE marking of products (under the scope of harmonised standard BS EN 12209) wasn't a requirement before 1st July 2013.

I hope this information is useful.

 

[Reducing gaps between door and frame]

Its my belief that although 'Shapland' are no longer in business, IDSL possess much of the product data and evidence of fire resistance performance.  So you could contact them at  http://www.leaderflushshapland.co.uk/Integrated-doorsets/Technical-Resources  possibly for archived data/information and guidance about the doors.

If you wish to use packing material behind hinges this may be done, within reason, using Interdens intumescent sheet material and this is available 1mm and 2mm thick.  This sort of information and examples of suitable repairs should be included in the training materials provided. 

[mr]

Cork has good natural characteristics in terms of fire resistance so it may be that the doors were designed and manufactured as fire doors.  However, its not just the core materials and facings that have a bearing of fire resistance.  The installation of the door assembly (gaps, voids & alignment), the intumescent edge seals, the smoke seals, the door frame, the ironmongery & hardware, glazing and the fire-stopping around the assembly to the surrounding wall will also matter very much.

Therefore, it would be wise to engage a Competent Person to thoroughly inspect the door assembly and provide a fire door inspection report.  https://afdi.org.uk/category/find-a-fire-door-inspector/

[Mr]

These are dealt with in section 7.3.5 of the document 'Hardware for Fire & Escape Doors: Code of Practice'  http://firecode.org.uk/Code_of_Practice_hardware_for_fire_and_escape_doors.pdf   and typically for a timber-based door the product certification for the door leaf will say, as a general example, something along the lines of: 

[Gap under door frame.]

I would make a suitable repair by tightly splicing-in suitable timber to entirely fill the gap.  

[Internal fire doors (Rented flat)]

I would consult the document  https://www.gov.uk/government/publications/fire-safety-in-purpose-built-blocks-of-flats   for advice.

[Making good a fire door after cutting into it]

I would use a urea formaldehyde based adhesive.

[Fire door frame gap advice required]

Yes, this is typical of the different types of non-compliance issues that Fire Door Inspectors see on a daily basis.  Installation of timber-based fire doors should be in accordance with BS 8214: 2016 Timber-based Fire Door Assemblies: Code of Practice and the door manufacturers product data sheet / installation instructions.

[Fire door frame gap advice required]

Q1:  BS 8214:2016 only provides directions for gaps with a maximum width of 20mm, many of the gaps between our fire door frame and wall are over 20mm, some being 35mm, is 20mm the maximum gap width permitted ?

A)  There are some foam products that have been successfully fire tested for use with fire doors at gaps over 20mm.

 

Q2:  BS 8214:2016 states in relation to door frame packing that suitable solid packing should be used, ours are hollow plastic, I assume that heat would melt this and given that they are hollow would allow its shape to reduce in size, possibly

allowing the door frame to move, are these types of packers valid for use with fire doors?

A)  The plastic packers should be cut back by at least 10mm and sealed over with intumescent mastic, so that they are encapsulated by the mineral fibre and intumescent mastic system.

 

3: Two gaps which have a gap width of over 30mm are to be lined with a sheet of plasterboard to reduce the gap width, the information related to the fire door only states that the supporting construction can be lined with soft or hard wood, would

a lining of plasterboard be valid?

A) Not sure that plasterboard has been fire performance tested in this scenario but have been told that building control would accept this.  Personally, I would remove the door frame and screw timber to its back edge, continuous in width and length, to increase the door frame thickness accordingly. 

 

Have you informed NHBC, local building control and the builder about these non-compliance issues?

[Upgrading existing doors with varnish for 30 minute protection (building regulations for extension)]

Not all doors can be upgraded to 30 mins by painting though?  The product data sheet for the paint or varnish should provide details.

[Cold smoke brush seal gap]

The cold smoke seal should be in contact with the opposing surface in order for it to be effective.  There are various types of smoke seals available, including types that can seal against the face of the door instead of at the edge.

[Replacement Fire Doors in Common Areas]

The fire door inspector should not mandate replacement of doors but they should report any fire door safety issues for the Fire Risk Assessor at the building to advise the Responsible Person about what suitable and sufficient action should be taken.  Articles 17 and 38 of the Regulatory Reform (Fire Safety) Order 2005 apply. 

If the cupboards are located on an escape route or access route and there is a risk of fire within the cupboard it is very likely that the doors would need to be fire doors. Fire doors should be installed and checked for compliance by a Competent Person, Article 18 of the Regulatory Reform (Fire Safety) Order 2005 applies.

[Is there a legal requirement to retrofit CE marked hinges to existing fire doors?]

Building regulations in England does not specifically require hinges for fire doors to be EN, BS, CE or UKCA marked but to have a minimum melting point of 800 deg. C. See Appendix C at https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1124736/Approved_Document_B__fire_safety__volume_2_-_Buildings_other_than_dwellings__2019_edition_incorporating_2020_and_2022_amendments.pdf

[Mag locks on timber doors]

Magnetic locks fitted to timber-based fire doors should be suitable for and compatible with the fire door.  Consult the product certification data sheets for the maglock and for the fire door, for suitability and compatibility with eachother. 

[Info on locks]

The lock appears to be located at the top of the closing edge of the fire door and bears no marks indicating its suitable for a fire door?   Usually the evidence of fire resistance performance for a timber fire would state that the lock position should be between 800mm and 1200mm from the door bottom edge. The lock forend dimensions seem quite large too.

There also appears to be a magnetic lock fitted?  If that's so, is it suitable for and compatible with the fire door?

[Info on locks]

This is a question for an architectural ironmonger.  Try a GAI member.

Is the door really a fire door?

[Replacement Fire Doors in Common Areas]

Where has the 'instruction to replace them' come from?    What authority does the instruction carry?   Has a suitable and sufficient Fire Risk Assessment been carried out and if so what was concluded with respect to the four cupboard doors?   

The answers to these questions will help the freeholders make the decisions.