How to choose a fire door right

Features of choosing a fire door

In order to find out how long this door leaf can hold fire outside it, you need to look at the parameter such as the fire resistance limit.

Each fire door in the documentation indicates what this indicator is equal. Usually in the documents it is written as “EI-45”. This means that this door can resist the spread of the flame for 45 minutes.

A good fire door is characterized by the fact that it is made of special metal and covered with fire resistance. On the most modern fire doors, they install the Antipanic system. While the door is closed to all locks, it can only be opened outside with keys. But from the inside, in the presence of such a system there is a door open itself, you just have to press its handle.