CVW3700 – Concealed Vent Window
Guide Specifications
General
Description
Furnish all necessary materials, labor and
equipment for the complete installation of
aluminum windows as shown on the drawings
and specified herein.
Project-out vent windows shall be CVW3700
(1 7/8" x 3 1/4") as manufactured by EZvent. 
Whenever substitute products are to be considered, 
supporting technical literature, samples drawings and
performance data must be submitted ten (10)
days prior to bid in order to make a valid
comparison of the products involved.
Test reports certified by an independent
laboratory must be made available upon
request.
Performance Requirements
Air infiltration shall not exceed .10 CFM/Ft2
when tested in accordance with ASTM E-283
at a test pressure of 6.24 PSF.
There shall be no uncontrolled water entry
when tested in accordance with ASTM E-331
"Water Penetration of Exterior Windows,
Curtainwalls and Doors by Uniform Static Air
Pressure Difference" at a test pressure of 12
PSF.
Structural performance per ASTM E-330
shall be based on a maximum allowable
deflection of L/175 of the span. The system
shall perform to those criteria under a design
test pressure of 70 PSF.
Windows shall meet the performance
specification AAMA/NWWDA 101/I.S.2-97
requirements for AW-70 and HC-70 ratings.
Products
Construction
The 3 1/4” deep, glazed-in-place frame is
fabricated from extruded aluminum, with .075”
minimum wall thickness. Joints are coped,
double screw fastened, and sealed with small
joint sealer.
The sash is fabricated from extruded
aluminum, with .075” minimum wall thickness.
Mitered hairline joints are mechanically staked
to solid aluminum, internal corner keys, and
sealed with small joint sealer.
Materials
Extrusions shall be of aluminum alloy 6063-
T5 extruded within commercial tolerance and
free from defects impairing strength and/or
durability.
Screws, bolts and all other accessories to be
compatible with the aluminum under normal
service conditions.
Glazing shall be by means of an open cell,
high density, polyurethane foam tape spacer
with a one part, high modulus, structural
silicone sealant.
Weathering consists of double Santoprene
bulb gasket between sash and frame, plus
exterior neoprene wiper, continuous at
perimeter.
Thermal barrier shall be a two part
chemically curing, unfilled polyurethane casting
resin poured in place for perimeter members.
Finish
All exposed framing surfaces shall be free of
scratches and other serious blemishes.
Finish to be: (architect select)
Etched and clear anodized
(AAM12C22A31)
Clear - Class 2 (OA)
(AAM12C22A41)
Clear - Class 1 (2A)
Electrolytically deposited color
(AAM12C22A44) Class 1
Champagne (4K)
Light Amber (2K)
Amber (1K)
Statuary Bronze(3K)
Black (OD)
Fluoropolymer painted color
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Execution
Installation
Installation shall be in accordance with the
manufacturer’s installation instructions and the
approved shop drawings.
Note:
In keeping with EZvent’s policy of
continuing product improvements, all
specifications are subject to change without
written notice by the manufacturer.