Hollow core doors are usually purchased for two basic reasons.
Mineral core door.
Mineral core doors utilize a mixture of noncombustible minerals and are only used in doors that require fire ratings of 45 60 or 90 minutes.
Up to stc 32 with structural composite lumber core.
Ceco door produces the best steel fire doors in the industry.
With mineral fiber cores these doors can stand up to the larges blaze for 3 hours no problem.
Navy island s mineral core doors have fire ratings of 45 minute 60 minutes and 90 minute while providing uncompromising durability and aesthetics.
This requires internal wood blocking in the core to allow hardware to fasten securely.
Temperature rise ratings can be 250 450 or 650 degrees where the lower.
Mineral composite frame in 1 3 4 door.
Mineral core is an asbestos free mineral based product that meets the criteria for 45 60 and 90 minute fire rated doors fire rated options non rated 20 minute 45 minute 60 minute 90 minute and 3 hr.
Mineral fire doors consist of the mineral core itself with lengths of firestop material used for stiles rails and blocking.
It is relatively light in density at approximately 32 pounds per cubic foot.
Solid core wood doors can be used for either exterior or interior doors.
Fire resistant mineral core doors are available.
Ceco door is an assa abloy company.
Doors come in 1 8 door facings with premium hardwood veneers or preprimed unprimed or prefinished thin medium density fiberboard.
They weigh less and are expected to cost less than solid core.
Up to stc 35 with fire rated mineral core.
The available door thickness is a nominal 1 3 4.
Hollow metal doors can be specified with a temperature rise rating which will require a sheet of mineral board inserted into the door.
This material has properties that reduce the heat that is transferred through the door to the non fire side of the opening.
Oregon door s acoustic doors provide superior sound control to meet the specialized design and performance requirements of varied building projects.
Doors available in 45 or 60 minute fire ratings up to 3 0 x 8 0 manufactured to the current georgia pacific or marshfield door systems specifications.
Firedefender mineral core material fills most of the space in the interior of a door.
Solid core doors represent an interim construction method in which a fine grade surface wood veneer is glued over a solid core made of engineered wood such as fiberboard or masonite.