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I. Light Gauge Framing* - Vertical and Horizontal Hangers — Vertical and horizontal hangers formed from 1 in. wide galv steel strips, supplied in
two configurations with length as needed to accommodate thickness of curtain wall insulation (Item 2J) and mullion cover (Item 2L). Vertical
hangers (with 90 deg twist) screw-attached to interior face of mullions with No. 10 by min 1/2 in. long self-drilling, self-tapping steel screws.
Vertical hangers on mullions to be located near each corner of each piece of curtain wall insulation except for the nominal 7 to 9 in. high piece
of curtain wall insulation located immediately beneath the stem of the T Bar. The 7 to 9 in. high piece of curtain wall insulation immediately
beneath the stem of the T Bar requires only one vertical hanger near its\' midheight at each end. Horizontal hangers (without twist)
screw-attached to T Bar (Item 2G) and to transom at top of spandrel panel (sill of vision panel) with No. 10 by min 1/2 in. long self-drilling,
self-tapping steel screws. Horizontal hangers on T Bar to be located within 6 in. of mullion at each end and spaced max 16 in. OC. Horizontal
hanger on transom at top of spandrel panel to be located at center of transom. No hangers are to be used on the transom at the bottom of
spandrel panel (lintel of vision panel).
THERMAFIBER INC
J. Curtain Wall Insulation* — Min 2 in. thick mineral wool batt insulation faced on one side with aluminum foil/scrim vapor retarder, supplied in
min 36 in. wide batts. Insulation batts to be installed with no vertical seams. A horizontal seam is to be located 7 to 9 in. below the stem of the
T Bar in each spandrel area and is to be sealed with aluminum foil tape. In the spandrel area beneath the stem of the T Bar, insulation panels
tightly-fitted between vertical mullions and between the stem of the T Bar (Item 2G) and the transom, flush with the interior surface of framing.
Insulation panels impaled on vertical and horizontal hangers (Item 2I) and secured in place with nom 2 by 2 in. steel locking washers (Item
OhFK
THERMAFIBER INC — Firespan 90
K. Light Gauge Framing* - Locking Washers — Nom 2 by 2 in. clips formed from galv steel and designed to secure curtain wall insulation and
mullion covers on vertical and horizontal hangers (Item 2I).
THERMAFIBER INC
L. Mullion Covers - Curtain Wall Insulation* — Nom 2 in. thick mineral wool batt insulation faced on one side with aluminum foil/scrim vapor
retarder, supplied in min 24 by 48 in. boards. Nom 12 in. wide strips to be centered over mullions and impaled on the same vertical hangers
used to secure the spandrel panel insulation and secured in place with nom 2 by 2 in. locking washers (Item 2K). Mullion covers to abut the
forming material (Item 3A) above and below the floor.
THERMAFIBER INC — Firespan 90
M. Light Gauge Framing* - Spiral Anchor — (Not Shown) - As an alternate to the vertical hangers (Item 2I), galv steel wire spiral anchors may
be used to secure the framing covers (Item 2L) to the curtain wall insulation (Item 2J) on each side of the mullion. Nom length of spiral
anchors to be equal to thickness of curtain wall insulation plus thickness of framing cover. Spiral anchors driven through mullion covers and
into curtain wall insulation and spaced max 12 in. OC.
THERMAFIBER INC
3. Safing System — Max separation between the edge of the floor and the face of the framing members (at time of installation) is 4 in. The safing
system is designed to accommodate vertical shear movement up to a max of 5 percent of its installed width. The safing system shall incorporate
the following construction features:
A. Forming Material* — Nom 4 pcf density mineral wool batt insulation. Batt sections cut to a min 4-1/2 in. width and stacked to a thickness
which is min 25 percent greater than the width of linear gap between the curtain wall insulation and the edge of the concrete floor slab to attain
a min 20 percent compression in the thickness direction. The forming 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. Forming material to extend completely beneath mullion mounting
plate (Item 2A). A max of two tightly-butted seams are permitted in the forming material between mullions.
THERMAFIBER INC — Type SAF
B. Fill, Void or Cavity Material* — Min 1/8 in. wet thickness (min 1/16 in. dry thickness) of fill material spray-applied over top of forming material
and lapping min 1/2 in. onto the top surface of the floor and onto the curtain wall insulation, mullion anchor plate (Item 2A) and framing covers.
HILTI CONSTRUCTION CHEMICALS, DIV OF HILTI INC — CP 672 Firestop Joint Spray or CP 672 FC Firestop Joint Spray
*Bearing the UL Classification Mark
CWD 2046
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System No. CW-D-2046
Reproduced by HILTI, Inc. Courtesy of
Underwriters Laboratories, Inc.
September 18, 2008
F Rating — 2 Hr
T Rating — 1/4 Hr
Integrity Rating — 2 Hr
Insulation Rating — 1/4 Hr
Linear Opening Width — 4 In. Max
Class II Movement Capabilities - 5% Vertical Shear (See Item 3)