Page text

Sheet
Drawing No.
HILTI, Inc.
Date
Scale
1. LIGHTWEIGHT OR NORMAL WEIGHT CONCRETE FLOOR (MINIMUM 2-1/2" THICK) OVER METAL DECKING
(1-HR. OR 2-HR. FIRE-RATING).
2. STRUCTURAL STEEL BEAM, AS SPECIFIED IN THE INDIVIDUAL D700 OR D900 SERIES FLOOR/CEILING
DESIGN, CENTERED AND ORIENTED PARALLEL TO WALL ASSEMBLY (SEE NOTE NO. 3 BELOW).
3. UL CLASSIFIED MONOKOTE TYPE MK-6/HY (MANUFACTURED BY W.R. GRACE) OR TYPE 300
(MANUFACTURED BY ISOLATEK, INT.) FIREPROOFING SPRAYED TO THE THICKNESS SPECIFIED IN THE
INDIVIDUAL D700 OR D900 SERIES DESIGN. FIREPROOFING TO COMPLETELY FILL FLUTES ABOVE
STRUCTURAL STEEL BEAM.
4. GYPSUM WALL ASSEMBLY (UL/cUL CLASSIFIED U400 OR V400 SERIES) (1-HR. OR 2-HR. FIRE-RATING)
(2-HR. SHOWN).
5. CEILING RUNNER (MIN. 25 GA., FLANGE HEIGHT OF CEILING RUNNER SHALL BE MINIMUM 1/4" GREATER
THAN MAXIMUM EXTENDED JOINT WIDTH) SECURED TO STEEL BEAM THROUGH SPRAY- APPLIED FIRE
RESISTIVE MATERIAL WITH STEEL FASTENERS (SPACED MAX. 24" OC) (SEE NOTE BELOW).
6. [OPTIONAL] CEILING RUNNER MAY BE SECURED TO STEEL BEAM WITH Z-SHAPED CLIPS (MIN 20 GA) :
MINIMUM 1" LONG, BUT NOT EXCEEDING THE WIDTH OF THE WALL. CLIPS TO BE SIZED TO EXTEND
THROUGH THE THICKNESS OF THE FIREPROOFING WITH 1-1/2" OR 2" LONG UPPER AND LOWER LEGS.
SUPPORT CLIPS SPACED MAXIMUM 16" OC.
7. STEEL STUDS (MINIMUM 3-1/2" WIDE), CUT 3/4" TO 1-1/4" LESS IN LENGTH THAN ASSEMBLY HEIGHT,
NESTING IN CEILING RUNNER WITHOUT ATTACHMENT.
8. NOMINAL 5/8" THICK GYPSUM WALLBOARD. TYPE, NUMBER OF LAYERS, AND SHEET ORIENTATION AS
SPECIFIED IN THE INDIVIDUAL UL DESIGN. THE TOP ROW OF SCREWS SHALL BE INSTALLED INTO THE
STUDS 1-1/2" BELOW THE BOTTOM OF THE CEILING RUNNER.
9. HILTI CP 767 SPEED STRIPS COMPRESSED 50% AND INSERTED INTO JOINT, FLUSH WITH WALL
SURFACES (SEE NOTE NO. 2 BELOW).
10. MINIMUM 1/8" (WET) THICKNESS HILTI CFS-SP WB FIRESTOP JOINT SPRAY OR HILTI CP 672 SPEED
SPRAY TO COMPLETELY COVER MINERAL WOOL WITHIN JOINT. HILTI FIRESTOP SPRAY TO OVERLAP
MINIMUM 1/2" ONTO GYPSUM WALL ASSEMBLY AND MINIMUM 2" ONTO FIREPROOFING ON BOTH SIDES
OF WALL ASSEMBLY.
NOTES : 1. AS AN ALTERNATE TO CEILING RUNNER IN ITEM NO. 5, SLOTTED CEILING RUNNERS MAY BE
USED. CONSULT THE UL FIRE RESISTANCE DIRECTORY FOR APPROVED MANUFACTURERS.
2. AS AN ALTERNATE TO HILTI CP 767 SPEED STRIPS, MINERAL WOOL (MIN. 4 PCF DENSITY)
COMPRESSED 50%, MAY BE USED.
3. THE TOTAL THICKNESS OF FIREPROOFING APPLIED TO EACH SIDE OF THE STEEL BEAM
WEB SHALL BE MINIMUM 13/16" THICKNESS FOR A 1-HR. FIRE-RATING AND MINIMUM 1-3/8"
THICKNESS FOR A 2-HR. FIRE-RATING, WHEN USING MONOKOTE TYPE MK-6/HY, AND
MINIMUM 11/16" THICKNESS FOR A 1-HR. FIRE-RATING AND MINIMUM 1-1/2" THICKNESS FOR
A 2-HR. FIRE-RATING WHEN USING TYPE 300.
HWD
2 of 2
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UL/cUL SYSTEM NO. HW-D-0259
TOP OF WALL JOINT : GYPSUM WALL ASSEMBLY
Tulsa, Oklahoma USA (800) 879-8000
ASSEMBLY RATING = 1-HR. OR 2-HR. (DEPENDING ON RATING OF WALL AND FLOOR ASSEMBLY)
CLASS II MOVEMENT CAPABILITIES - 50% COMPRESSION OR EXTENSION
L-RATING AT AMBIENT = LESS THAN 1 CFM/LIN FT
L-RATING AT 400°F = LESS THAN 1 CFM/LIN FT
0259m
May 07, 2012
HWD0259m.050712