ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
SECTION 08 44 00 - GLAZED ALUMINUM CURTAIN WALLS
PART 1 - GENERAL
1.01
A.
1.02
A.
1.03
A.
RELATED DOCUMENTS
Drawings and general provisions of the Contract, including General
and Supplementary Conditions and Division 1 Specification Sections,
apply to this Section.
SECTION SUMMARY
Section includes:
1.
Aluminum framed glass-glazed curtain wall systems with
interior and exterior exposed metal framing.
a.
Stick system installation.
2.
Multi-story, single-bay units; with sloping roof structure.
3.
Prep to receive insulating glass, patterned glass in roof
areas; field glazed.
4.
Curtain walls system to be supported by independent structural
steel system.
RELATED SECTIONS
Related Sections include:
1.
2.
3.
4.
5.
1.04
A.
Section
Section
Section
Section
Walls.
Section
06
07
08
08
10
92
41
51
00
00
00
13
-
Rough Carpentry; Treated Wood Blocking.
Joint Sealant.
Aluminum Entrances and Storefronts.
Aluminum Windows; Operable Sash in Curtain
08 80 00 - Glazing.
SYSTEM DESCRIPTION
Design requirements; stick system: Self supporting curtain wall
system with pressure plate and covers attached to the tongue of
back member. Glass shall be captured both vertically and
horizontally on all 4 sides with no exposed fasteners unless
absolutely necessary. Verticals and horizontals shall have a
thermal break separator. All horizontal glazing pockets shall
provided with weep holes to drain all accumulated water to the
exterior.
1.
Curtain wall manufacturer shall verify on shop drawings that
the curtain wall system meets or exceeds performance
requirements listed below.
2.
Glazed aluminum curtain walls shall withstand movements of
supporting structure as indicated on Drawings, including but
not limited to, story drift, twist, column shortening, longterm creep, and deflection from uniformly distributed and
concentrated live loads.
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 1
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
3.
Failure also includes the following:
a.
b.
c.
d.
e.
1.05
A.
Thermal stresses transferring to building structure.
Glass breakage.
Noise or vibration created by wind and thermal and
structural movements.
Loosening or weakening of fasteners, attachments, and
other components.
Failure of operating units.
PERFORMANCE REQUIREMENTS
General: Provide the manufacturer's stock curtain wall system,
adapted to the application indicated, that complies with
performance requirements specified as demonstrated by testing the
manufacturers corresponding stock systems according to test methods
indicated.
1.
Uniform Load Test: Basic wind speed at project site is 90
mph; refer to ANSI/ASCE 7-95 "Basic Wind Speed Map".
B.
Air Infiltration: Air leakage through the curtain wall system
shall not exceed 0.06 cfm per sq. ft. of wall area when tested in
accordance with ASTM E 283 at a minimum static air pressure
differential of 1.57 lbs. per sq. ft.(75.23Pa)
C.
Water Penetration: There shall be no uncontrolled water leakage
through the curtain wall system, as defined in AAMA 501, when
tested in accordance with ASTM E 331 at a minimum differential
pressure of 20 percent of inward design wind load but not less than
6.24 lbs. per sq.ft.(299Pa) or more than 12 lbs. per sq.ft (598Pa).
D.
Structural Performance: Curtain wall manufacturer shall design,
engineer, fabricate, and install the glazed aluminum curtain wall
system to withstand the effects of a wind load of 20 psf(958Pa)
acting inward and 20 psf(958Pa) acting outward, normal to the plane
of the wall, when tested in accordance with ASTM E 330, with no
material failures or permanent deformation of structural members.
Meet requirements of IBC International Building Code, current
edition adopted by local governing authorities.
1.
Structural test pressure shall be equal to 150 percent of the
inward and outward acting design wind pressures.
2.
Deflections: The curtain wall system shall be capable of
withstanding building movements including wind loading and of
performing within the following limitations.
3.
Deflection of framing members perpendicular to the plane of
the wall shall not exceed 1/240 of its clear span or 3/4
inch(19mm), whichever is less.
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 2
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
1.06
4.
Deflection of members parallel to the plane of the wall, when
carrying its full dead load, shall not exceed an amount that
will reduce glass bits by less than 75 percent of the design
dimension and shall not reduce edge clearance between itself
and the panel, glass, or other fixed member immediately below
to less than 1/8 inch(3.2mm).
5.
Curtain walls systems that are to be supported by independent
structural steel system, shall be designed in conjunction with
the supporting steel to withstand the loading described above
as an integral unit.
6.
Thermal Movements: The glazed aluminum curtain wall system
shall be capable of withstanding thermal movements resulting
from an ambient temperature differential of 120o F(48.9 oC).,
which may result in a metal surface temperature range of 180o
F. (82.2 oC)within the curtain wall framing without causing
buckling, stresses on glass, failure of joint sealants,
damaging loads on fasteners, or other detrimental effects.
7.
Condensation Requirements: The glazed aluminum curtain wall
system shall be of thermal-break construction that has been
tested in accordance with AAMA 1502.7 and certified by the
manufacturer to provide a condensation resistance factory
(CRF) of at least 45.
8.
Sound Transmission: The average sound transmission loss
through the glazed aluminum curtain wall system shall be a
minimum of 30 db. for the standard frequency range of 125 to
4000 Hz when tested in accordance with ASTM E 90 with the
glass type indicated.
9.
Energy Performance: fixed glazed and framing areas shall have
a U-factor of not more than 0.57 BTU/sq. ft. x H x Deg F (3.23
w/sq.m x K) as determined according to NFRC 100.
SUBMITTALS
A.
Product Data: Include manufacturer's specifications for materials
and fabrication, installation instructions, and recommendations for
maintenance. Include test reports showing compliance with project
requirements where test method is indicated.
B.
Shop Drawings: Show adaptation of manufacturer's standard glazed
aluminum curtain wall system to the project; include typical unit
elevations at 1/2 inch (12.7mm)scale and details at 3 inch
(76mm)scale. Show dimensions, profiles of members, anchorage
system, interface with building construction and glazing.
1.
Include setting drawings, templates, and directions for the
installation of anchor bolts and other anchorages installed as
a unit of work under other sections.
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 3
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
C.
1.07
A.
Samples: Provide pairs of samples of each aluminum finish type and
color on 12 inch (304.8mm)long sections of extrusions or formed
shapes and on 6 inch squares of aluminum sheet or plate. Include 2
or more units in each sample set showing the extreme limits of
variations expected in color and texture of finish.
QUALITY ASSURANCE
Installer Qualifications: Engage an experienced Installer who has
successfully completed installation of glazed curtain wall systems
similar in material, design, and extent to that indicated for the
Project and who is acceptable to the curtain wall manufacturer.
1.
Minimum 5 years of successful experience required.
B.
Glazing Standards: Comply with recommendations of Flat Glass
Marketing Association (FGMA) "Glazing Manual" and "Sealant Manual"
except where more stringent requirements are indicated. Refer to
those publications for definitions of glass and glazing terms not
otherwise defined in this section or referenced standards.
C.
Energy Performance Standards:
Comply with NFRC for minimum
standards
of
energy
performance,
materials,
components,
accessories, and fabrication.
Comply with more stringent
requirements if indicated.
1.08
A.
1.09
A.
1.10
A.
PROJECT CONDITIONS
Field Measurements: Take field measurements before fabrication;
show recorded measurements on final shop drawings. Coordinate
fabrication schedule with construction progress to avoid delay.
SEQUENCING AND SCHEDULING
Schedule installation of the glazed aluminum curtain wall system in
sequence with related elements of the work specified in other
sections to ensure that wall assemblies, including flashing, trim,
and joint sealers, are protected against damage from effects of
weather, age, corrosion, and other causes.
WARRANTY
General: Submit a written warranty signed by authorized
representatives of the Contractor and Installer warranting that
portions of the work involving glazed aluminum curtain wall are of
good quality, free from defects, and in conformance with the
requirements of the Contract Documents and further promising to
repair or replace defective work during a 5-year period following
completion of that portion of the work. Defective is defined to
include the following:
1.
2.
Glass breakage.
Failure of operational parts to function normally.
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 4
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
3.
4.
5.
6.
Deterioration or discoloration of finishes.
Failure of the system to meet performance requirements.
Water penetration through fixed glazing and framing areas.
Noise or vibration created by wind and thermal and structural
movements.
B.
The Warranty submitted under this Section shall not deprive the
Owner of other rights or remedies that the Owner may have under
other provisions of the Contract Documents and is in addition to
the runs concurrent with other warranties made by the Contractor
under requirements of the Contract Documents.
C.
Special Finish Warranty:
Manufacturer's standard form in which
manufacturer agrees to repair or replace components that show
evidence of deterioration of factory-applied finishes within
specified warranty period.
1.
Deterioration includes, but is not limited to, the following:
a.
b.
c.
2.
Color fading more than 5 Hunter units when tested
according to ASTM D 2244.
Chalking in excess of a No. 8 rating when tested according
to ASTM D 4214.
Cracking, checking, peeling, or failure of paint to adhere
to bare metal.
Warranty Period: 20 years from date of Substantial Completion.
PART 2 - PRODUCTS
2.01
A.
B.
C.
2.02
A.
MANUFACTURERS
EFCO Corp. Monett Missouri www.efcocorp.com (800)-221-4169.
Kawneer Company, Inc. a Division of Alcoa, Norcross, GA
www.alcoa.com/bcs/kawneer (404)-449-5555.
Wausau Windows and Wall Systems, Wausau, WI
www.wausauwindows.com
(877)-678-2983.
CURTAIN WALL SYSTEM
Similar to Kawneer Company, Inc. "1600 curtain wall system";
outside glazed system.
1.
2.
3.
4.
2-1/2 inches wide x 7-1/2 inches deep(50.8mm x 190mm);
including 3/4 inch (19mm)deep vertical mullion cap.
2-1/2 inches wide x 10 inches deep, with steel reinforcing by
curtain wall manufacturer, ¾ inch (19mm) deep vertical mullion
cap; for opening CW elevation 1,2,3,4, and 5.
Thermally broken construction.
Curtain wall system shall be from the same manufacturer as the
aluminum windows.
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 5
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
B.
2.03
A.
Operable sash in curtain walls; Refer to Section 08 51 13 Aluminum Windows; similar.
MATERIALS
Aluminum: Provide alloy, temper and thickness recommended by the
manufacturer for the type of use and finish indicated and with not
less than the strength and durability properties of the alloy and
temper designated below for each aluminum forum required.
1.
2.
B.
Glass and glazing:
1.
C.
Extruded bar and shapes: Comply with requirements of ASTM
B221.
Plate and Sheet: Comply with requirements of ASTM B 209.
Refer to Section 08 80 00 - Glazing.
Glass shall be 1 inch (25.4mm)thick insulating glass, unless
otherwise noted. Safety glass where noted or required.
Outside glazed.
Mullion Configurations: Provide pockets to receive resilient
estomeric glazing. Mullions and horizontals shall be one piece.
Make provisions to drain moisture accumulation to the exterior.
1.
Thermal break construction.
barrier.
Poured-in-place structural
D.
Brackets and Reinforcements: Manufacturer's standard high-strength
aluminum units or stainless steel.
E.
Fasteners and Accessories: Provide manufacturer's standard noncorrosive fasteners and accessories compatible with materials used
in the framing system and with exposed portions that match finish
of the curtain wall system. Where movement is expected, provide
slip- joint linings of sheets, pads, shims, or washers of
fluorocarbon resin or a similar material recommended by the
manufacturer.
1.
2.
Concrete or Masonry Inserts: Cast-iron, malleable iron or
hot-dip galvanized steel inserts complying with ASTM A 123/A
123M or ASTM 153/A 153M.
Self-locking devices where fasteners are subject to loosening
or turning out from thermal and structural movements, wind
loads or vibration.
D.
Bituminous Coatings: Cold-applied asphalt mastic, SSPC-PAINT 12,
compounded for 30-mil thickness per coat..
E.
Weatherstripping: Manufacturer's standard replaceable stripping of
wool, polypropylene or nylon woven pile, with nylon fabric and
aluminum strip backing.
F.
Sealants and Gaskets:
Use sealants and gaskets in the fabrication,
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 6
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
assembly and installation of work, which are recommended and
guaranteed by manufacturer to remain permanently elastic,
non-shrinking, and non-migrating.
G.
Finish: PPG Industries "Duranar" coating system, or approved equal
Kynar 500/Hylar 5000 based coating system. AAMA 2605, containing
not less than 70% PVDF resin by weight in color coat.
1.
2.
2.04
Color Range: "Duranar" exotic 2-coat system. Color as
selected by Architect from full range of available colors.
Hardware finish as selected by Architect.
FABRICATION
A.
General: Fabricate curtain wall system at the manufacturer's shop
to the fullest extent possible and before applying finishes.
Provide concealed fasteners. Make provisions to weep penetrating
water and condensation to the exterior.
B.
Match exposed work to produce continuity of line.
accurately and secure rigidly.
C.
Provide grid frame curtain wall members and components with joints
neatly made, free of burrs, and tight fitting to provide hairline
joints with ends coved, mitered, milled or machined as appropriate
and approved, and securely welded, fastened or joined in the
factory to develop full structural value of members and provide
permanent water tight joints.
D.
Provide major framing members factory assembled in basic
rectangular units sized for ease of erection and transportation.
Systems using individual field fabricated and/or field assembled
members are not acceptable.
E.
Where required, weld by methods recommended by manufacturer and AWS
to avoid discoloration at welds. Grind exposed welds smooth.
F.
Conceal fasteners wherever possible.
G.
Provide tubular and/or solid extruded aluminum mullions with sharp,
well defined corners and flush sight lines.
H.
Provide interlocking male/female type stack joints at adjacent grid
frame members to allow for expansion and contraction of frame
units. "Stick" system type one piece tubular members which do not
allow for expansion and contraction in vertical members will not be
acceptable.
I.
Glazing System:
1.
Fit joints
Exterior glazing; field glazed.
Glazing system as supplied by curtain wall manufacturer;
manufacturer's standard dry glazing system. Provide safety
glass where indicated or required by code.
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 7
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
J.
Provide means to drain water passing joints, condensation within
framing members and moisture migrating within curtain wall to
exterior.
PART 3 - EXECUTION
3.01
INSTALLATION
A.
Comply with manufacturer's instructions for protecting, handling,
and installing fabricated curtain wall components, with particular
care and attention to preservation of applied finishes. Discard or
remove and replace damaged members.
B.
Anchor components securely in place in the manner indicated. Shim
and allow for movement resulting from changes in thermal
conditions. Provide separators and isolators to prevent corrosion,
electrolytic deterioration, and freeze-up of moving joints. Rigidly
secure nonmovement joints.
C.
Sealants and joint fillers: Comply with requirements specified in
"Joint Sealers" sections. Joints between framing and building
structure shall be sealed. Seal joints watertight unless otherwise
indicated.
D.
Erection Tolerances: Install components plumb, level, accurately
aligned, and located in reference to column lines and floor levels.
Adjust work to conform to the tolerances indicated below.
Tolerances indicated below are maximum and are not cumulative.
1.
2.
3.
4.
E.
3.02
A.
Plumb: 1/8 inch in 10 feet(3mm in 3.04m); 1/4 inch in 40
feet(6mm in 12.1m).
Level: 1/8 inch in 20 feet (3mm in 6.08mm); 1/4 inch in 40
feet(6mm in 12.1m).
Alignment: Limit offset of member alignment to 1/16 inch
(1.58mm)where surfaces are flush or less than 1/2 inch(12.7mm)
out of flush and separated by less than 2 inches(50.8mm) by a
reveal or protruding work; otherwise limit offsets to 1/8
inch(3mm).
Location: 3/8 inch (9.5mm) maximum deviation from the
measured theoretical location of any member at any location.
Fit joints to produce hairline joints free of burrs and distortion.
CLEANING
Clean the completed system, inside and out, promptly after erection
and installation of glass and sealants, allowing for nominal curing
of liquid sealants. The Installer shall advise the Contractor of
proper and adequate procedures for protection and cleaning during
the remainder of the construction period so that the system will be
without damage and deterioration at the time of acceptance.
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 8
(45307035)
ST. VINCENT COLLEGE
SIS AND HERMAN DUPRÉ SCIENCE PAVILION
B.
At the time of Substantial Completion, clean curtain wall system
thoroughly and polish glass. Demonstrate proper cleaning methods
and materials to the Owner's maintenance personnel.
END OF SECTION
GLAZED ALUMINUM CURTAIN WALLS
08 44 00 - 9
(45307035)