Steel is the sole door material to deliver a 3 hour fire rating.
Fire door core material.
It has excellent thermal properties and through bolting is allowed but it is not intended to provide screw holding capabilities.
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.
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.
Firedefender mineral core material fills most of the space in the interior of a door.
A temperature rise door is a fire rated door which limits the heat transfer through the door for a period of 30 minutes.
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.
The 250 door is the most restrictive.
Rigid honeycomb core.
Labeled fire doors control the spread of fire and smoke for up to 3 hours.
Gypsum as an endothermic fill.
Temperature rise ratings can be 250 450 or 650 degrees where the.
Heavy duty 18 gauge steel doors.
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.
This material has properties that reduce the heat that is transferred through the door to the non fire side of the opening.
Glass sections including vision panels.
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.
Hollow core doors are usually purchased for two basic reasons.
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.
The door frame includes the.
The available door thickness is a nominal 1 3 4.
Fire doors may be made of a combination of materials such as.
It enables the door to be lighter stronger and have better fire resistance while also improving insulation and sound proofing.
Fire rated door components.
Hollow metal doors can be specified with a temperature rise rating which will require a sheet of mineral board inserted into the door.
They weigh less and are expected to cost less than solid core.