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D. Curtain Wall Insulation* — Min 2 in. thick mineral wool board insulation, faced on one side with aluminum foil/scrim vapor retarder, supplied in
min 24 by 48 in. boards. Insulation boards installed vertically with tightly-butted seams to cover interior surface of concrete spandrel panel.
Horizontal seams of insulation boards (if necessary) to be located min 24 in. above and min 6 in. below planes of floor. Insulation boards
secured to spandrel panel with impaling pins in conjunction with min 1-1/2 in. diameter galv steel clinch shields. Butted seams to be covered
with aluminum foil tape.
ROXUL ASIA SDN BHD — CurtainRock 80
ROXUL INC — CurtainRock 80
3. Safing System — Max separation between edge of floor assembly and curtain wall insulation is 6 in. The safing system shall incorporate the
following construction features:
A. Forming Material* — Mineral wool batt safing material to be cut into min 4-1/2 in. wide pieces and stacked to a thickness which is at least 25
percent greater than the width of the linear gap between the curtain wall insulation (Item 2D) and the edge of the concrete floor slab. The
stacked safing material is compressed and inserted cut-edge-first into the linear gap such that its top surface is flush with the top surface of
the floor assembly. A max of one tightly butted seam is permitted between spandrel panel attachment plates or tubes. An additional min 1/2 in.
thick piece of mineral wool batt safing material is to be installed to cover top surface of each dead load anchor.
ROXUL ASIA SDN BHD — SAFE
ROXUL INC — SAFE
B. Fill, Void or Cavity Material* — Min 1/8 in. wet thickness (1/16 in. dry) of fill material spray-applied over top of forming material and lapping
min 1 in. onto the top surface of the concrete floor and onto the curtain wall insulation.
HILTI CONSTRUCTION CHEMICALS, DIV OF HILTI INC — CP 672 Firestop Spray or CP 672 FC Firestop Joint Spray
*Bearing the UL Classification Mark
C
L
A
S
S
I
F
I
E
D
System No. CW-S-2053
CWS 2053
Reproduced by HILTI, Inc. Courtesy of
Underwriters Laboratories, Inc.
April 08, 2009
F Rating — 2 Hr
T Rating — 1/4 Hr
Linear Opening Width — 8 In. Max