Smoke control is important for preventing smoke spreading through the building and providing clear escape routes during the early phases of a fire. Smoke control is essentially a function of the doorset air leakage rate and the performance is linked to any areas of the door that are likely to provide a route for air flow, the primary route being the gap between the door edge and frame reveal or threshold/finished floor level. For this reason smoke control is reliant on the performance, location and adequate installation of seals that are fitted to the edges of the door.
Simple checks to see if your fire doors are legal
- Door Furniture – The door handle should operate smoothly and freely return to a horizontal position? – All screws should be tight? – If on an escape route, can the door be opened without a key?
- Hinges – Are there a minimum of 3 hinges with all the screws fitted securely? – Are the hinges free of metal fragments and oil leakage which could be signs of wear? – Are the hinges marked with a CE stamp or BS EN 1935 grade 13?
- Locks and Latches – Does the latch hold the door firmly in place without rattling? – Does the latch/deadbolt engage fully into the strike plate?
- Door Closers – Open the door to 5˚ or 75mm. Does it close and engage the latch? – Is the closer correctly fitted to the door and frame? – Is the closer free from damage and not leaking oil? – If unlatched, does the closer hold the door in line with the frame and intumescent seal?
- Hold Open Devices – If required, does the door release immediately and close fully into the door frame?
- Signage – Does the door display the correct signage? All fire doors MUST be signed.
- Exit Devices – Is the panic or emergency exit device functioning correctly? – Are the fixings of the operating device, bolts and strikes tight? Still in doubt – or in need of replacement hardware? Give us a call or email for advise.
- Door Seals – Are the intumescent and/or smoke seals in good condition, not missing or damaged? – Are the door seals to the correctly specified fire rating and function? – Are the seals well attached inside the groove in the frame?
Most of the routine maintenance recommended consists of a combination of visual and mechanical checks, cleaning and lubrication.
Visual checks of fire doors/frame and intermescent strips for any damage should be carried out. Check the operation of the door closing to ensure it closes properly, also check the hinges regularly and the screws which may require tightening.