PRODUCT COVERED
Lexington 60 Minute Rated Composite Core Fire Doors. Any listed wood, aluminum, or steel frames may be used as per frame manufacturers listing(s).
PRODUCT DESCRIPTION
Maximum Sizes:
| Single-Swing |
4'0" x 8'0" |
| Temperature Rise |
Max 250°F @ 60 mins. |
LIMITATIONS
Hardware - Cylindrical or mortise locks, card locks, surface mount hardware, rim exit hardware, concealed closer, concealed door stop, mortise automatic door bottoms, 48 in. x 48 in. maximum surface plates, viewers, louvers, mortise exit devices, pivot and continuous hinges, raceways, electrical strikes, edge guards, dust box, and lay-on or applied molding.
Concealed or invisible hinges are allowed up to and including 45 Minutes (UIP SOSS 218 or listed equivalent with equal or smaller cut-out) .
Doors constructed as described in this procedure meet the requirements for both positive and neutral pressure fire tests, UL 10(c), UBC 7-2 (1997) Part 1, NFPA 252, CAN4 S104, UBC 7-2 (1994), and UL 10(b) .
These doors are Category "A" doors (no additional edge sealing system is required).
Doors labeled for positive pressure applications must include installation instructions to be furnished by the door labeler. Unless otherwise noted in the door's installation instructions all intumescent materials and smoke/draft control gasketing used in the assembly are to be installed per their respective manufacturer's instructions.
In neutral pressure applications the intumescent is not required.
