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OUR ESCAPE ROUTE IS FIRE'S SPREAD ROUTE
People are advised to use the stairs in case of fire because lifts and escalators being electrical equipments may shut down and get stuck. Fire spreads around through doors or windows just like people use them to escape from the place on fire. So the escape route of people is the spreading route for fire.
DOORS CATCH FIRE AND BLOCK RESCUE
In case of fire, typical doors are a liability that can cause serious accident. If a lower storey is on fire and it spreads to the staircase, then people escaping from the higher level are bound to get stuck. This may lead to loss of life. It also hampers the fire fighting team from gaining access to the area on fire.
- Doors are key to people's escape in case of fire
- But if doors catch fire then it seriously thwarts the possibility of escape
- This may lead to loss of many lives
INDOOR SYSTEMS CAN HELP SAVE LIVES
The staircase can be protected and secured for a quick and safe escape by creating a barrier between the access area and the staircase with the help of a fire door. A fire door is a door with a fire resistance rating and is used as part of a passive fire protection system to reduce the spread of fire and smoke.
Fire Doors Show The Way
Nowadays, it is mandatory to have fire doors at the fire exit or staircase. This is part of the regulations that set out the minimum requirement for fire protection that must be implemented. All fire doors must be installed with the appropriate fire resistant fittings, such as the frame and door hardware, for it to fully comply with the fire regulations.
InDoor Adds Fire Retardant Power To Fire Doors
When the doors are in a design stage, proper cavity can be maintained to fill the area of the door with fire retardant insulation material. This limits the spread of fire even if the exterior of the door has been breached. The thickness of the system can be designed keeping in mind the number of floors in a building, the risk assessment in temis of fire spread, the area, etc. There are 20, 30, 46, 60, and 90 minute-rated fire doors available as options for the application,
- InDoor Systems add a retardant layer that prevents the spread of fire
- Nowadays, statutory laws mandate the provision of fire doors at fire exits
- InDoor can prevent the spread of fire for 20, 30, 45, 60 or 90 minutes depending on design.
DOORS ABSORB SOUNDS PARTIALLY
Doors are usually made of plywood or glass. These are closed cell materials, which partially absorb and partially reflect the sound waves. These doors create acoustic pockets, which cause acoustic breach. Even if the walls are well insulated with acoustic insulation, if proper attention is not given to the door then it can reduce the overall insulation performance.
NRC & STC VALUES ARE IMPORTANT
Important and confidential talk can leak through the door joints. If the door material has lower STC value then it allows more sound to pass through it. STC value is defined as the ability of material to stop the sound. In some applications, it is required to use materials which have high NRC value so the sound cannot pass through and desired reverberation time of the room is maintained. In disco, pub, theatre, etc. a lot of sound escapes through the door, creating disturbance in the immediate foyer area.
- Doors do not absorb sound completely
- So they allow the sound to pass through to the other side
- This is a problem if the doors are not insulated properly
INDOOR SHOWS THE WAY
In discos, pubs, and cinema halls, door joints should be properly sealed and insulated with acoustic insulation. The door can be insulated with material that has high NRC and STC value. If the NRC value of the material is high then it will absorb the sound better. The high STC value material will not allow the sound to pass through it easily. The density of the material is a very important factor in acoustic insulation.
Designing The System
In this system, insulation material is fixed inside the frame of the door. The insulation material is covered with the finishing material, usually the mother material of the door like wood, metal, etc. Extra care should be taken while using the finishing material. If the acoustic insulation is designed for sound absorption then some part of the material in the door should be exposed to the source of sound, a perforated sheet is ideal here. If the end use is to isolate sound completely, then the finishing material can be completely opaque.
Ideal For
Discos, Pubs, Theatre halls, etc.
- InDoor Systems help block the sound
- The insulation material should have high NRC and STC value
