When it comes to fire doors, people are not unfamiliar with them. It is precisely because they have the function of fire and smoke prevention that they are loved by more people. The door body of fire doors should be made of materials that will not burn and deform under the high temperature of a fire. The sealing of the door body must be good and intact, and it is not allowed to expose smoke. For the fireproof performance, it depends on whether the quality of the materials used by the manufacturer is qualified, so you must be careful when installing, and install according to the specifications and standards.

The installation of fire door requires that the door frame and door opening wall should be completely sealed, which involves the size of the fire door. If the door body is too large or too small, the installation effect of the fire door will be affected, which will directly affect the sealing of the door body.

When measuring the size of the door, the customer must understand clearly that there are many requirements for the door frame and the door seam. The purpose of this is to better use the fire door. The size of the door frame should be 20mm smaller than the opening. This size can be better installed and used. If the installation through the door body is not firm, if it is too small, it cannot be sealed tightly.