Mineral fire doors consist of the mineral core itself with lengths of firestop material used for stiles rails and blocking.
Fire door core material.
Gypsum as an endothermic fill.
This material has properties that reduce the heat that is transferred through the door to the non fire side of the opening.
Steel is the sole door material to deliver a 3 hour fire rating.
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.
20 45 60 90 minute or 3 hour label.
Firedefender mineral core material fills most of the space in the interior of a door.
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.
Both the door leaf the swinging panel of the door and the door frame are required to meet the guidelines of the testing agency which provides the product listing.
They weigh less and are expected to cost less than solid core.
Glass sections including vision panels.
Metal fire doors are an economical alternative to wood fire doors when more than a 20 minute rating is required.
It is relatively light in density at approximately 32 pounds per cubic foot.
Fire rated door components.
The door frame includes the.
Heavy duty 18 gauge steel doors.
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.
Temperature rise ratings can be 250 450 or 650 degrees where the.
Hollow metal doors can be specified with a temperature rise rating which will require a sheet of mineral board inserted into the door.
Hollow core doors are usually purchased for two basic reasons.
Labeled fire doors control the spread of fire and smoke for up to 3 hours.
It enables the door to be lighter stronger and have better fire resistance while also improving insulation and sound proofing.
The 250 door is the most restrictive.
The available door thickness is a nominal 1 3 4.
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 doors may be made of a combination of materials such as.
Rigid honeycomb core.