Heavy duty 18 gauge steel doors.
Fire door core material.
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.
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.
Rigid honeycomb core.
Metal fire doors are an economical alternative to wood fire doors when more than a 20 minute rating is required.
Fire rated door components.
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.
They weigh less and are expected to cost less than solid core.
Glass sections including vision panels.
Steel is the sole door material to deliver a 3 hour fire rating.
Temperature rise ratings can be 250 450 or 650 degrees where the.
It has excellent thermal properties and through bolting is allowed but it is not intended to provide screw holding capabilities.
Mineral fire doors consist of the mineral core itself with lengths of firestop material used for stiles rails and blocking.
The door frame includes the.
Gypsum as an endothermic fill.
It enables the door to be lighter stronger and have better fire resistance while also improving insulation and sound proofing.
Firedefender mineral core material fills most of the space in the interior of a door.
This material has properties that reduce the heat that is transferred through the door to the non fire side of the opening.
Labeled fire doors control the spread of fire and smoke for up to 3 hours.
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.
Hollow core doors are usually purchased for two basic reasons.
Fire doors may be made of a combination of materials such as.
It is relatively light in density at approximately 32 pounds per cubic foot.
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.
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.
A temperature rise door is a fire rated door which limits the heat transfer through the door for a period of 30 minutes.
The 250 door is the most restrictive.