Hollow metal doors can be specified with a temperature rise rating which will require a sheet of mineral board inserted into the door.
Fire door core material.
Hollow core doors are usually purchased for two basic reasons.
It is relatively light in density at approximately 32 pounds per cubic foot.
Rigid honeycomb core.
Firedefender mineral core material fills most of the space in the interior of a door.
They weigh less and are expected to cost less than solid core.
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.
And since simpson fire doors have been designed to match other interior doors your fire rated doors will blend seamlessly with all doors in your home.
Fire rated door components.
Steel is the sole door material to deliver a 3 hour fire rating.
A temperature rise door is a fire rated door which limits the heat transfer through the door for a period of 30 minutes.
Simpson offers thousands of choices for fire rated doors including 20 minute fire rated wood doors and mdf doors with fire ratings up to 90 minute.
Honeycombed core this is where a honeycomb structure made from metal cardboard or a variety of other materials is used in the core of the door.
The door frame includes the.
It has excellent thermal properties and through bolting is allowed but it is not intended to provide screw holding capabilities.
It enables the door to be lighter stronger and have better fire resistance while also improving insulation and sound proofing.
Heavy duty 18 gauge steel doors.
Mineral fire doors consist of the mineral core itself with lengths of firestop material used for stiles rails and blocking.
It all starts with tectonite components our proven raw mineral core with some of the lowest heat transfer on the market and the only material fire rated in your choice of 60 90 or 120 minutes.
Temperature rise ratings can be 250 450 or 650 degrees where the.
Fire doors may be made of a combination of materials such as.
The available door thickness is a nominal 1 3 4.
Labeled fire doors control the spread of fire and smoke for up to 3 hours.
Metal fire doors are an economical alternative to wood fire doors when more than a 20 minute rating is required.
20 45 60 90 minute or 3 hour label.
This material has properties that reduce the heat that is transferred through the door to the non fire side of the opening.
Gypsum as an endothermic fill.