CATEGORY B - DOORS - ADDITIONAL EDGE-SEALING SYSTEM REQUIRED
Simulated Panel Type (Proprietary Construction), Fire Door for installation in 20 minute locations (without hose stream). For use in any "Category C - Standard" frame. The doors may also be installed in frames listed in "Category C - Proprietary" in accordance with the door manufacturer's installation instructions.
Limitations
Mortise Latches/Cylindrical Latches with up to a 2-3/4" Backset/Deadbolts/Surface Mounted or Mortised Rim Type Fire Exit Devices/ Surface Mounted Vertical Rod Fire Exit Devices/Automatic or Manual Mortised or Surface Flush Bolts/ Viewers/Electric Raceway installed below the positive pressure plane (bottom 40" of door)/Surface Mounted Door Closer/Surface Mounted or Mortised Door Bottoms/Protection Plates up to 16".
Maximum Size of Openings
Single Swing
3’0” wide x 8’0” high.
Standard Pair
6’0” wide x 8’0” high.
Double Egress Pair
6'0" wide x 8'0" high.
Testing Standards
UBC-7-2-97/UL-10C (Positive Pressure).
Evaluated to the following...
This category includes doors evaluated with an edge-sealing system (Category G) field-applied to the labeled frame or door. The application of the edge-sealing system does not require any machining of the frame or door. Please refer to "Category G - Edge-Sealing System" for individual manufacturer's listings.
These assemblies are eligible for use in any "Category C - Standard" frame. These doors may also be installed in frames listed in "Category C - Proprietary" in the accordance with the frame manufacturer's individual listing.
All doors listed in Category B are eligible to bear the "S" (for Smoke & Draft Control assemblies) if a listed "Category H - Smoke & Draft Control Gasket" has been applied to the assembly. Please refer to Category H for individual gasket manufacturer's listings.
All doors in this category are identified by a label or marking bearing the wording, "Listed Fire Door", a time interval, a temperature rise rating, a serial number and the Warnock Hersey Certification Mark and "UBC-7-2-97/UL-10C".
