Page text

1. Floor Assembly — Min 4-1/2 in. thick reinforced lightweight or normal weight (100-150 pcf) structural concrete.
2. Curtain Wall Assembly — The curtain wall assembly shall incorporate the following construction features:
A. Mullion Anchor Plates — Nom 7 in. wide by 9-1/4 in. long by 5/8 in. thick extruded aluminum plates with a nominal 1-3/4 in. high raised lip
along one end to engage hooked ends of mullion mounting clips (Item 2B). Plates anchored to top surface of floor at each mullion location
with steel wedge anchor bolts in conjunction with extruded aluminum washers.
B. Mullion Mounting Clips — Nominal 3 in. wide by 7 in. high extruded aluminum anchor slides with tapped holes and with separate extruded
aluminum hooks designed to engage the raised lip of the anchor plate (Item 2A). Anchor slides bolted to each side of mullion at each floor with
1/2 in. diam stainless steel screws with locking washers. Anchor hooks secured to anchor slides with steel jacking screws and secured to
raised lip of anchor plate with steel set screw.
C. Framing — The one-piece or split rectangular tubing mullions (vertical members) and transoms (horizontal members) shall be min 2-1/2 in.
wide by 6 in. deep and shall be formed from min 0.125 in. thick aluminum. Mullions spaced max 60 in. OC and secured to mullion anchor
plates (Item 2A) with mounting clips (Item 2B) at each floor level. Interior face of mullions to be max 4 in. from edge of floor assembly.
Transoms to be spaced min 69 in. OC. The minimum height from the top of the floor to the bottom of the vision panel sill is 33 in.
D. Spandrel Panels — The spandrel panels shall consist of one of the following types:
a. Glass Panels — Nom 1/4 in. (6 mm) thick opaque heat-strengthened glass. Each panel secured in position with aluminum pressure plates
in conjunction with glazing gaskets and steel screws.
b. Aluminum Panels — Nom 1/8 in. (3 mm) thick aluminum panels with 1/4 in. (6 mm) thick edges. Each panel secured in position with
aluminum pressure plates in conjunction with gaskets and steel screws.
c. Stone Panels — Nom 1-3/16 in. (46 mm) thick polished granite spandrel panels with 1 in. (25 mm) thick gauged edges. Each panel
secured in position with aluminum pressure plates in conjunction with gaskets and steel screws.
E. Vision Panels — Nom 1 in. thick insulated glass units with two layers of nom 1/4 in. thick transparent heat-strengthened glass separated by a
1/2 in. air space. Each panel installed on silicone rubber setting blocks and secured in position with aluminum pressure plates in conjunction
with glazing gaskets and steel screws.
F. Light Gauge Framing* - T-Bar Support Brackets — Nom 2 in. wide brackets formed from galv steel and designed to bridge extruded
aluminum anchor slides of mullion mounting clips (Item 2B). Each T Bar support bracket provided with nominal 3 in. wide by 3 in. high leg with
a nominal 3/4 in. hemmed edge to receive the bottom edge of the T-Bar (Item 2G). T Bar support bracket secured to each side of mullion
using the same bolts used to attach the anchor slides of the mullion mounting clips. The hemmed edge of the T Bar support bracket is to be
located 3-1/2 in. below the top surface of the floor slab such that, when installed, the stem of the T Bar (Item 2G) will be located 2 in. below
the top plane of the floor slab. Angle of T Bar support bracket to be recessed from interior face of framing as necessary to accommodate the
thickness of the curtain wall insulation (Item 2J).
THERMAFIBER INC
G. Light Gauge Framing* - T-Bar — Nom 3 in. wide by 1-1/2 in. high tee section formed from galv steel. T Bar installed between mullions at
each floor level to restrain curtain wall insulation (Item 2J) against outward movement when forming material (Item 3A) is installed. The T Bar
shall be installed with a clearance of 1 1/2 to 3/4 in. at each end. The bottom edge of the T Bar shall rest in and be supported by the hemmed
edge of the T Bar support bracket (Item 2F) at each end. The top edge of the T Bar shall be locked in place with a locking clip (Item 2H) at one
end and by a min No. 10 by 1/2 in. long self-drilling, self-tapping steel screw at the opposite end. Each T Bar shall be located with its stem at
an elevation 2 in. below the top plane of the floor.
THERMAFIBER INC
H. Light Gauge Framing* - T-Bar Locking Clip — Nom 1 by 1-1/4 in. clips formed from galv steel and designed to lock top of T Bar (Item 2G) to
T Bar support brackets (Item 2F).
THERMAFIBER INC
CWD 2046
Page: 2 of 3
C
L
A
S
S
I
F
I
E
D
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)