Fire Door Constructions

About Noberne Doors Ltd o John Wilson – Sales Manager for Noberne Doors Ltd o Noberne Doors Ltd –Manufacture bespoke High Performance Specialist Doorsets; including FD30, FD60, FD90, FD120, X-Ray and Bullet Resistant. o Founder Members of the BM TRADA “Q-Mark” Fire Door Scheme (3 rd Party Accreditation body). o ISO9001:2008 Quality Standard & Forestry Stewardship Council (FSC) Accredited (timber only from sustainable sources).

Noberne Doors – history in brief Founded in 1975 First fire tests successfully achieved on FD30 & FD60 doors in 1975 In 1987 became the first UK door manufacturer to be awarded ISO9001 (formerly BS5750) Quality Standard First UK manufacturer to successfully test a timber FD120 doorset (1989) First manufacturer to develop an BSEN FD30 X-Ray doorset (2006) First UK fire door manufacturer to have BIM (Building Information Modelling) – Launched in April 2013

Overview o Noberne Doors, an introduction o Insight into Fire Doors and their purpose o Fire Door Construction o Why do things go wrong? o Correct Specification o Building Information Modelling o Summary

Fire Doors and their purpose Fire Doors play a vital role in protecting a building from fire – They protect escape routes and allow safe evacuation in case of a fire Fire Doors are made from various materials – Are mainly manufactured from timber, steel and mineral composites or a combination of the above Fire Doors are categorised in the UK by time ratings, tested to BS476 Part 22:1987 or BS EN :2008 standard – FD30 (S) – FD60 (S) – FD90 (S) – FD120 (S)

Fire Doors and their Purpose? Cont… Fire Doors require vital components to be operational Typically comprised of: Door Frame Intumescent Seals Essential Ironmongery Glazing System (if required)

Timber Fire Door Constructions Timber Framed Flaxboard Core Graduated Density Core (GDC Chipboard) Laminated Timber Core Tubular Particle Core

Timber Fire Door Constructions Tubular Particle Core Light weight (60% less than GDC) Made from timber waste Low price point Readily available (B&Q, Wickes etc.) ×Not suitable for high usage applications ×Only available in FD30 (single leaf, single action) ×Fixing issues

Graduated Density Core Readily available Available in FSC & PEFC Reasonable acoustic performance Low cost × Heavy compressed chipboard × Cascaded test evidence – owned by board manufacturer not door manufacturer × Poor ironmongery screw fixing qualities (floor springs and concealed closers in particular) Timber Fire Door Constructions

Laminated Timber Reasonable acoustic performance Lightweight Better screw fixings than Graduated Density Cores Good impact resistance × Usually sourced from South East Asia × Inconsistent quality × Can de-laminate during processing × Limited availability in FSC Timber Fire Door Constructions

Timber Perimeter Framed Flaxboard Cores Ideal for high usage or areas likely to receive higher impact Better fixing for hinges, pivots, locks and closers EU sourced material (FSC) Primary test evidence ×Extra factory processes ×Lead times usually 4-5 weeks ×Heavier than tubular cores Timber Fire Door Constructions

Why do things go wrong? Large lock case fitted in a Laminated Timber Core. Double Leaf Hospital Cleaners Store Door

Why do things go wrong? Floor springs or pivots used in a Graduated Density Core. Double Action Door on College Corridor Double Action Door on Hospital Corridor

Why do things go wrong? Hinge fixing problems with a Graduated Density Core. Single Action Hospital Kitchen Doors

Why do things go wrong?

Correct Specification of Fire Doors What is the right door core for your building? Example 1: Hospital Plant room Doors - High use and withstand vibration and potential abuse from maintenance engineers. (Laminated Timber & Timber Perimeter Framed Flaxboard) Corridor Doors – Usually double action (hung on pivots), very high use and be able to withstand impact from trolleys or equipment.(Timber Perimeter Framed Flaxboard) Ideal core would incorporate a timber perimeter, offering good fixing properties, be capable of severe duty mechanical strength and allow use of concealed closers and pivots.

Correct Specification of Fire Doors What is the right door core for your building? Example 2: Multi Occupancy or Social Housing Riser Cupboard Doors - Required to prevent spread of fire for determined period and open and close for inspection purposes (low use). (GDC) Room Access Doors – General and frequent use, will need to be closed by door closers and have multi-point locking systems in place. (Laminated Timber or Timber Perimeter Framed Flaxboard) Corridor Doors – Used frequently, open to abuse, need to offer security to building users. (Timber Perimeter Framed Flaxboard) Best solution would be a compromise of 2 or 3 constructions dependant on budget; GDC on risers doors with Timber Perimeter Framed construction on others.

Correct Specification of Fire doors Door TypeFire Rating ActionIdeal Application Springs/Pivots & Flush Bolts Core Properties Tubular CoreFD30SingleCupboard Ducts Not Recommended Light Graduated Density Cores (GDC) FD30 FD60 Single Double Over panels Ducts Room Access Not Recommended Light to Medium Laminated Timber Core FD30 FD60 Single Double Over panels Ducts Room Access YesMedium Timber Perimeter Framed Core FD30 FD60 FD90 FD120 Single Double Over panels Cross Corridor Schools Hospitals Secure Dwellings YesMedium to Severe

Assessment of fire doors and doorsets by BRE Global Ltd Installed within the last 2 years (£1.9 million worth of upgrades) Sample check of 66 doors, defects include: no intumescent seals, doors not closing, gaps not sealed between frame and wall Stick to the specification and only use accredited installers! ‘Death trap’ fire doors in Stoke!

BIM (Building Information Modelling)

The Government Construction Strategy was published by the Cabinet office on 31 May The report announced the Governments intention to require BIM on its projects by UK Government has embarked with industry on a four year programme for sector modernisation with the key objective of: reducing capital cost of the built environment by 20%. Central to these ambitions is the adoption of information rich Building Information Modelling (BIM) technologies.

In summary Fire Doors play an important role in protecting your building from fire. In the UK market they are mainly made from timber. Fire Doorsets comprise of: frame, essential ironmongery, intumescent seals and glazing system if required. Choose the correct door type for the application; you can maximise your budget by installing the right door in the right place.

Thank you. Noberne Doors Ltd Lupton Street Leeds, LS10 2QP Tel: The views of the presenter are his own and that of Noberne Doors Ltd based on actual experience in the field; these may differ from other organisations presenting today and also other opinions within the Fire Door industry.