• Certification is correct and up to date and all ironmongery is CE marked and compatible with door leaf certification • Apertures haven’t been altered for glazing or air transfer grilles (which can make certification void) • The gap around the door is a constant 3 to 4 mm, with firmly fixed hinges and seals that are securely fitted at the tops and sides • Door closers shut the door onto the latch from any position – this must be checked down to 75mm from the closed position • The door closes correctly around all parts of the frame “Often fire doors are installed and then forgotten about, but – just like any piece of equipment – they need to be properly checked and maintained,” explains Steve Horner, Managing Director at E. & S.W. Knowles. “It’s the responsibility of building owners, landlords and tenants to complete these checks on a regular basis. It doesn’t take long but could literally be the difference between life and death in the event of a fire”. E. & S.W. Knowles offers a wide range of standard internal fire doors, with bespoke options also available. All of them are fully tested and are third-party accredited under the IFC Certification and BM TRADA ‘Q’ Mark Fire Schemes, with fire protection ratings that range from 30 minutes (FD30) right up to 120 minutes (FD120). Accompanying timber doorsets mean that the buyer receives a compatible door, frame, hardware, seals and glass from one quality and trusted supplier. All doorsets are supplied as a complete package ready for installation and can be fully machine prepared for hardware, providing a precision fit that maximises performance and simplifies installation. All fire doors and timber doorsets in the E. & S.W. Knowles range comply with building regulations. To discover more about fire doors and timber doorsets from E. & S.W. Knowles, you can access an online brochure at www.knowlesdoors.co.uk/brochure/ Also online at: www.dijonline.co.uk THE door industry journal winter 2022 115 Fire Doors, Safety & Security Norseal Hardware Kits Save Time and Hassle on Site Hundreds of FD30 fire doors at a historic hotel in London’s Piccadilly have been fitted with a variety of Norseal intumescent and fire rated products, many of them made bespoke by Norseal, to make the job quicker, easier and trouble-free for specialist joinery and interior fit-out contractor NBJ (London) Limited. Joinery contractors NBJ, working on phase one of the restoration project, installed over two hundred FD30 fire doors on bedroom doors at the Dilly Hotel using a variety products from Norseal to maintain fire integrity throughout. As well as a variety of intumescent strip seals, NBJ fitted Norseal’s NOR810 single actuated bottom edge drop seal for its acoustic and smoke rating. A significant benefit for NBJ installation was Norseal’s intumescent lock kits, cut to bespoke size for the hotel room door locks, saving NBJ time, money and hassle on site. “We always get great service from Norseal and these Interdens lock kits certainly saved us a great deal of time on such a large project, and we were always confident that they would be perfect every time,” says Craig Smith from NBJ. “Having the pre-cut intumescent kits, along with intumescent strip – in white to match the doors – drop seals and fire rated door viewers all from one place delivered without fail on time was a great help to us in getting these doors completed to the highest standards on time to meet the project’s tight deadlines.” Norseal supplies a variety low pressure graphite and Interdens intumescent sealing solutions for a variety of ironmongery products including hinges, flush bolts, door closers, and locks, all designed to help prevent the transfer of heat through door hardware during a fire. In accordance with BS 476-22 they provide up to 120 minute fire resistance and can be designed and bespoke in-house so they are right first time, every time and did not need to be cut or adjusted on site. The NOR810 is a single actuated bottom edge drop seal for acoustic and fire-rated timber doorsets. It has been tested to one million cycles to all appropriate standards is available in thirteen lengths as standard from 320-1535mm. In addition, Norseal can cut accurately to any length using Europe’s first custom-made drop seal cutting machine. The machine will cut any drop seal to the exact size needed, ready for next day delivery, without damaging it, keeping the fire, smoke and acoustic integrity of the door intact. Every door seal cut to size by Norseal comes with a one million cycle guarantee. For more information please visit www.norseal.co.uk or contact Norseal on 01661 830088.
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