GENERAL

This category covers sliding-type fire doors consisting of the following constructions: composite, hollow-metal, metal-clad, sheet-metal and tin-clad.

INSTALLATION

Sliding-type doors are intended for installation in concrete or masonry walls unless otherwise noted in the individual certifications.

ASTRAGALS

Center-parting doors are intended to be provided with an astragal in accordance with ANSI/NFPA 80, "Fire Doors and Other Opening Protectives," to provide the protection indicated.

VENTS

Tin-clad doors made of 14 by 20 in. metal sheets are intended to be provided with vents as specified in ANSI/NFPA 80 to provide the protection indicated.

GLAZING PANELS

Doors marked "4 H" are not intended to be provided with vision panels.

Doors marked "3 H," "1-1/2 H" or "1 H" may be provided with certified glazing materials for the vision panels. The sum of the exposed glazing area should not exceed 100 sq in. per door and the width and height should not exceed 12 and 33 in., respectively.

Doors marked "3/4 H," "30 MIN" or "20 MIN" may be provided with one or more certified glazing materials for the lights. The exposed area of each light should not exceed 1296 sq in. with no dimension exceeding 54 in.

Doors marked "TWENTY-MINUTE-TYPE DOOR FIRE TESTED WITHOUT HOSE STREAM" may be provided with one or more certified glazing materials for the lights. The exposed area of each light should not exceed 1296 sq in. with no dimension exceeding 54 in. (except as indicated in the individual certifications).

Certified 1/4 in.-thick wired glass, as well as other types of certified glazing material, are covered under Fire-protection-rated Glazing Materials (KCMZ). The glazing material is intended to be installed in accordance with the manufacturer's instructions to provide the protection indicated.

A door prepared at the factory for a light includes the glazing frame members, but generally does not include the glazing material. The glazing material (glass) is usually provided by other than the door manufacturer and is installed in the field at the time of the door installation.

PASS DOOR

Sliding doors may be provided with pass doors by some manufacturers as indicated in the individual certifications.

The pass door, complete with all necessary hardware, is provided with the sliding-door panel.

HARDWARE

Sliding doors marked "3 H," "1-1/2 H," "1 H," "3/4 H," "30 MIN," "20 MIN" or "TWENTY-MINUTE-TYPE DOOR FIRE TESTED WITHOUT HOSE STREAM" are intended to be provided with certified fire-door hardware to provide the protection indicated.

Sliding doors marked "4 H" are intended to be provided with the applicable hardware which is shipped with the door assembly and installed per the manufacturer's installation instructions to provide the protection indicated.

Fire door hardware is covered under Fire Door Hardware (GZYX).

DOOR CLOSERS

Doors are intended to be provided with door closers in accordance with the instructions in ANSI/NFPA 80.

For certifications of closing devices, see:

  Fire Door Closers, Holders and Operators (GTBT)

  Combination Fire Door Closer and Holders (GTIS)

  Fire Door Operators (GUCZ)

  Fire Door Operators with Automatic Closers (GUJY)

  Sliding Fire Door Closers (GUQX)

DOOR TYPES AND SIZES

The following tabulation of door sizes is provided as a reference guide and includes the maximum sizes currently certified. The maximum door sizes will vary for each individual certification.

Composite Type

Composite doors include steel-covered-type fire doors. They consist of a manufactured core material with steel edges, and face sheets of steel. Steel-covered composite doors are rated up to 4 h.

Sizes:

Hollow-metal Type

Hollow-metal doors consist of formed steel of the flush and paneled designs. Hollow-metal doors are rated up to 4 h.

Sizes:

Metal-clad Type

Metal-clad (Kalamein) doors consist of the flush and paneled designs having metal-covered wood members. Metal-clad doors are rated up to 1-1/2 h.

Sizes:

Sheet-metal Type

Sheet-metal doors consist of formed steel of the corrugated, flush and paneled designs. Sheet-metal doors are rated up to 3 h.

Sizes:

Tin-clad Type

Tin-clad doors consist of two- or three-ply wood-core construction, covered with galvanized steel or terne plate. Tin-clad doors are rated up to 3 h.

Sizes:

Twenty-minute-type Door Assemblies Fire Tested Without Hose Stream

Twenty-minute-type door assemblies fire tested without hose-stream exposure are intended for use as door assemblies designed for the protection of openings in walls and partitions as specified in the applicable sections of the Model Building Codes.

The 20-minute rating indicates the duration of fire exposure only. These 20-minute-type door assembly components have not been subjected to a hose-stream exposure.

Sizes:

ADDITIONAL INFORMATION

For additional information, see Fire Doors (GSNV) and Fire-resistance Ratings (BXRH).

REQUIREMENTS

The basic standards used to investigate products in this category are ANSI/UL 10B, "Fire Tests of Door Assemblies," and ANSI/UL 10A, "Tin-Clad Fire Doors."

UL MARK

The Certification Mark of UL on the product is the only method provided by UL to identify products manufactured under its Certification and Follow-Up Service. The Certification Mark for these products includes the UL symbol, the words "CERTIFIED" and "SAFETY," the geographic identifier(s), and a file number.

Additional Certification Markings

Products covered under this category are additionally marked with the following information:

Alternate UL Mark

The Classification Mark of UL on the product is the only method provided by UL to identify products manufactured under its Classification and Follow-Up Service. The Classification Mark for these products includes the UL symbol, the word "CLASSIFIED" above the UL symbol (as illustrated in the Introduction of this Directory), and the following additional information:

+ 4 HR, 3 HR, 1-1/2 HR, 1 HR, 3/4 HR, 30 MIN or 20 MIN

++ 30 Min - 250 F Max, 30 Min - 450 F Max, 30 Min - 650 F Max, or no reference to temperature rise when the temperature rise exceeds 650 F at 30 min.

The Classification Mark for Twenty-minute-type Doors Fire Tested Without Hose Stream includes the UL symbol, the word "CLASSIFIED" above the UL symbol (as illustrated in the Introduction of this Directory), and the following additional information:

* * * * * * * * * * * * * * * * * * * * * * * * *

UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the manufacturer or any other party. UL shall not incur any obligation or liability for any loss, expense or damages, including incidental or consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Guide Information.