Fire Rated Door Core Material

20 45 60 90 minute or 3 hour label.
Fire rated door core material. E core is a versatile vermiculite based homogenous core that reduces manufacturing complexity and cost and has no known oh s issues. Metal fire doors are an economical alternative to wood fire doors when more than a 20 minute rating is required. Hollow metal doorswith this core type are most often used at exterior openings and can be fire rated up to 3 hours. Mineral fire doors consist of the mineral core itself with lengths of firestop material used for stiles rails and blocking.
Steel is the sole door material to deliver a 3 hour fire rating. Hollow metal is the only door material widely available with a 3 hour label. It enables the door to be lighter stronger and have better fire resistance while also improving insulation and sound proofing. It is relatively light in density at approximately 32 pounds per cubic foot.
The available door thickness is a nominal 1 3 4. E core is manufactured into flush panel fire rated doors. The insulation value is much higher than the honeycomb but lower than the polyurethane. 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. Corrim has pioneered the development of fire doors for a variety of industries and applications in the pharmaceutical water treatment and industrial markets due to its noncorrosive characteristics. They weigh less and are expected to cost less than solid core. Fire ratings range from 20 minutes to 3 hours.
Hollow core doors are usually purchased for two basic reasons. It has excellent thermal properties and through bolting is allowed but it is not intended to provide screw holding capabilities. Steelcraft s fire rating capabilities include the use of ceramic glass and special glazing compounds. Fire rated door components 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. The first level of insulated door core is the polystyrene which is a slab of foam that is placed in the core of the door. There are currently more than 1 million e core fire doorsets in service.