Difference between insulated and non insulated door

Difference between insulated and non insulated door

BySubhash Kumar

A fire insulated door and a fire door without insulation are both designed to resist the spread of fire and smoke, but they differ in their ability to retain heat and prevent the transfer of heat from one side of the door to the other.


In fire insulated door we put mineral fiber wool and Puff between doors so to resist heat to get transfer other side.

Where as in non insulated doors we put honeycomb paper that is also called non fire rated metal doors.


In wooden insulated doors we have mineral fiber wool and calcium silicate board.Then door can be made as fire rated door.

Where as without insulation doors are called non fire rated wooden doors.

A fire insulated door is designed to have a layer of insulation material between the door's metal or wooden surface layers. This insulation helps to slow down the transfer of heat from one side of the door to the other, which helps to protect the integrity of the door and prevent it from warping or deforming during a fire. The insulation also helps to protect the contents of the room on the non-fire side of the door, which can be especially important for rooms with sensitive or valuable equipment.

A fire door without insulation, on the other hand, does not have a layer of insulation material. This means that it may not be as effective at preventing the transfer of heat from one side of the door to the other, and it may be more prone to warping or deforming during a fire. However, it can still be effective at preventing the spread of fire and smoke, and it may be more cost-effective than a fire insulated door.

In summary, the main difference between a fire insulated door and a fire door without insulation is the presence or absence of a layer of insulation material, which affects the door's ability to resist heat transfer during a fire.For more blog click on

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