Glass For A 650 Deg Temp Rise Steel Doors

A temperature rise rating is not a requirement for qualification as a labeled fire door but when required doors are built to meet this criteria ceco manufactures two types of temperature rise rated fire doors.

Glass for a 650 deg temp rise steel doors.

In addition to the hourly rating the fire door label will also state the temperature rise rating of the door. Temperature rise ratings are 250 f 450 f and 650 f and indicate the maximum rise in temperature above ambient. Temperature rise ratings are either 250 degrees f 450 degrees f or 650 degrees f indicating the maximum rise above ambient temperature on the non fire side measured during the first 30 minutes of a standard fire endurance test. A temperature rise door is a fire rated door which limits the heat transfer through the door for a period of 30 minutes.

Ceco steel stiffened doors are used in areas where optimum security and susceptibility to vandalism and break in are of paramount concern. Temperature rise ratings indicate the maximum rise above ambient temperature on the non fire side of the door and will be either 250 450 or 650 f. Temperature rise ratings are 250 f 450 f and 650 f and indicate the maximum rise in temperature above ambient temperature measured on the unexposed surface non fire side of the door during the first 30 minutes of the standard. Known as temperature rise doors these doors carry a temperature rise rating in addition to the hourly rating.

In addition to the hourly rating the fire door label will also state the temperature rise rating of the door. Fire ratings are available from 20 minutes through 3 hours with 450 degree f temperature rise option. The 250 degree temperature rise door is the most restrictive because it limits the heat transfer to only 250 degrees for a 30 minute period. The 250 door is the most restrictive because it limits the heat.

Doors are built with a specifically designed core and are referred to as temperature rise doors.