SPECIAL SPECIFICATION

SECTION 10200

[LOUVERS]{.underline}

Page

PART 1 - GENERAL

1.01 Related Documents
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1.02 References
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1.03 Summary
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1.04 Definitions
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1.05 System Performance Requirements
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1.06 Submittals
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1.07 Quality Assurance
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1.08 Project Conditions
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PART 2 - PRODUCTS

2.01 Manufacturers
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2.02 Materials
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2.03 Fabrication, General
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2.04 Fixed Extruded Aluminum Wall Louvers
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2.05 Louver Screens
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2.06 Finishes, General
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2.07 Aluminum Finishes
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PART 3 - EXECUTION

3.01 Preparation
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3.02 Installation
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3.03 Adjusting and Protection
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3.04 Cleaning
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SPECIAL SPECIFICATION

SECTION 10200

[LOUVERS]{.underline}

PART 1 - GENERAL

1.01 [RELATED DOCUMENTS]{.underline}

A. Drawings and general provisions of Contract, including General and
Supplementary Conditions and Division 1 Specification Sections, apply to
this Section.

1.02 [REFERENCES]{.underline}

A. [Aluminum Association (AA)]{.underline}

C12C42R1x

B. [American Architectural Manufacturers Association (AAMA)]{.underline}

605.2

C. [American Society for Testing and Materials (ASTM)]{.underline}

B 209 Specification for Aluminum and Aluminum-Alloy Sheet and Plate

B 221 Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods,
Wire, Shapes, and Tubes

D. [American Welding Society (AWS)]{.underline}

D1.2

D1.3

E. [National Association of Architectural Metal Manufacturers
(NAAMM)]{.underline}

F. [Sheet Metal and Air Conditioning Contractors National Association
(SMACNA)]{.underline}

1.03 [SUMMARY]{.underline}

A. [This Section includes the following]{.underline}:

1\. Fixed metal wall louvers.

B. Air intake louvers for HVAC terminal units are specified with units
in Division 15.

C. [Related Sections]{.underline}: The following sections contain
requirements that relate to this section.

1\. Division 7 Section \"Joint Sealers\" for sealants installed in
perimeter joints between louver frames and adjoining construction.

1.04 [DEFINITIONS]{.underline}

A. [Louver Terminology]{.underline}: Refer to AMCA Publication 501-85
for definitions of terms for metal louvers not otherwise defined in this
section or referenced standards.

1.05 [SYSTEM PERFORMANCE REQUIREMENTS]{.underline}

A. [Structural Performance]{.underline}: Design, engineer, fabricate,
and install exterior metal wall louvers to withstand the effects of
loads and stresses from wind and normal thermal movement, without
evidencing permanent deformation of louver components including blades,
frames, and supports; noise or metal fatigue caused by louver blade
rattle or flutter; and permanent damage to fasteners and anchors:

1\. Wind Load: Uniform pressure (velocity pressure) of 20 lbf. per sq.
ft. acting inwards or outwards.

2\. Normal thermal movement is defined as that resulting from the
following maximum change (range) in ambient temperature. Base design
calculations on actual surface temperatures of metals due to both solar
heat gain and night time sky heat loss.

a\. Temperature Change (Range): 100 deg. F (55.5 deg. C).

1.06 [SUBMITTALS]{.underline}

A. Product data for each product indicated.

B. Shop drawings of louver units and accessories. Include plans,
elevations, sections, and details showing profiles, angles, spacing of
louver blades; unit dimensions related to wall openings and
construction; free areas for each size indicated; and profiles of frames
at jambs, heads and sills.

1\. Where installed products are indicated to comply with certain
structural design loadings, include structural computations, material
properties, and other information needed for structural analysis which
has been prepared by, or under the supervision of, a qualified
professional engineer.

C. Samples for verification purposes of each type of metal finish
required, prepared on 6 inch square metal samples of same thickness and
alloy indicated for final unit of Work. Where finishes involve normal
color and texture variations, include sample sets showing full range of
variations expected.

D. Qualification data for firms and persons specified in \"Quality
Assurance\" article to demonstrate their capabilities and experience.

1.07 [QUALITY ASSURANCE]{.underline}

A. [Single Source Responsibility]{.underline}: Obtain louvers and vents
from a single source where alike in one or more respects with regard to
type, design, and factory-applied color finish.

B. Qualify welding processes and welding operators in accordance with
D1.2 \"Structural Welding Code - Aluminum\" and D1.3 \"Structural
Welding Code - Sheet Steel\"

1\. Certify that each welder employed in unit of Work of this section
has satisfactorily passed AWS qualification tests for welding processes
involved and, if pertinent, has undergone recertification.

2\. Testing for recertification is Contractor\'s responsibility.

C. [SMACNA Standard]{.underline}: Comply with SMACNA \"Architectural
Sheet Metal Manual\" recommendations for fabrication, construction
details, and installation procedures.

D. All materials used shall not contain asbestos fibers or lead.

1.08 [PROJECT CONDITIONS]{.underline}

A. [Field Measurements]{.underline}: Check actual louver openings by
accurate field measurements before fabrication; show recorded
measurements on final shop drawings. Coordinate fabrication schedule
with construction progress to avoid delay of the Work.

1\. Where field measurements cannot be made without delaying the Work,
guarantee opening dimensions and proceed with fabrication of louvers and
vents without field measurements. Coordinate wall construction to ensure
that actual opening dimensions correspond to guaranteed dimensions.

PART 2 - PRODUCTS

2.01 [MANUFACTURERS]{.underline}

A. [Manufacturers]{.underline}: Subject to compliance with requirements,
provide products of one of the following:

1\. Louvers:

Airline Products Co. Div., Danzer Metal Works Co.

Airolite Co.

Airstream Products Div., Penn Ventilator Co., Inc.

American Warming and Ventilating Inc.

Arrow United Industries

Construction Specialties, Inc.

Industrial Louvers, Inc.

Reliable Metal Products

Ruskin Mfg. Div., Phillips Industries, Inc.

2.02 [MATERIALS]{.underline}

A. [Aluminum Sheet]{.underline}: ASTM B 209, Alloy 3003 or 5005 with
temper as required for forming, or as otherwise recommended by metal
producer to provide required finish.

B. [Aluminum Extrusions]{.underline}: ASTM B 221, Alloy 6063-T5 or T-52.

C. [Fasteners]{.underline}: Of same basic metal and alloy as fastened
metal, unless otherwise indicated. Do not use metals which are corrosive
or incompatible with materials joined.

1\. Use types, gages, and lengths to suit unit installation conditions.

2\. Use Phillips flat-head machine screws for exposed fasteners, unless
otherwise indicated.

D. [Anchors and Inserts]{.underline}: Of type, size and material
required for type of loading and installation indicated. Use nonferrous
metal or hot-dip galvanized anchors and inserts for exterior
installations and elsewhere as required for corrosion resistance. Use
toothed steel or expansion bolt devices for drilled-in-place anchors.

E. [Bituminous Paint]{.underline}: SSPC-Paint 12 (cold-applied asphalt
mastic).

2.03 [FABRICATION, GENERAL]{.underline}

A. [General]{.underline}: Fabricate louvers and vents to comply with
requirements indicated for design, dimensions, materials, joinery and
performance.

B. Preassemble louvers in shop to minimize field splicing and assembly.
Disassemble units as necessary for shipping and handling limitations.
Clearly mark units for reassembly and coordinated installation.

C. Maintain equal louver blade spacing, including separation between
blades and frames at head and sill, to produce uniform appearance.

D. Fabricate frames, including integral sills, to fit in openings of
size indicated with allowances made for fabrication and installation
tolerances of louvers, adjoining construction, and perimeter sealant
joints.

E. Include supports, anchorages, and accessories required for complete
assembly.

F. Provide vertical mullions of type and at spacings indicated but not
further apart than recommended by manufacturer, or 72 inches o.c.,
whichever is less. At horizontal joints between louver units provide
horizontal mullions except where continuous vertical assemblies are
indicated.

G. Provide sill extensions and loose sills made of same material as
louvers, where indicated, or required for drainage to exterior and to
prevent water penetrating to interior.

H. Join frame members to one another and to fixed louver blades as
follows, unless otherwise indicated, or size of louver assembly makes
field bolted connections between frame members necessary.

1\. With fillet welds, concealed from view.

2\. With fillet welds, concealed from view; or mechanical fasteners; or
a combination of these methods; as standard with louver manufacturer.

2.04 [FIXED EXTRUDED ALUMINUM WALL LOUVERS]{.underline}

A. [Continuous Horizontal Fixed Blade Louvers]{.underline}: Extruded
aluminum frames and louver blades with supporting framework concealed
from view from outside face of louver by placing braces, mullions, and
brackets on inside face; with close fitting, field-made splice joints in
blades designed to permit expansion and contraction without deforming
blades or framework; and complying with the following requirements.

1\. Louver Depth: 4 inches.

2\. Frame Type: Channel flange.

3\. Frame Thickness: 0.081 inch.

4\. Louver Blade Thickness: 0.081 inch.

5\. Louver Blade Profile: Plain blade with no center baffle.

6\. Louver Blade Angle: 30 degrees.

7\. Louver Blade Spacing: 3 inches o.c. for 4 inch deep, 30 degree angle
louver blades.

8\. Louver Free Area: Not less than 8.80 sq. ft. for 48 inch wide by 48
inch high section.

2.05 [LOUVER SCREENS]{.underline}

A. [General]{.underline}: Provide each exterior louver with louver
screens complying with the following requirements:

1\. Screen Location for Fixed Louvers: Interior face, unless otherwise
indicated.

2\. Screening Type: Bird screening, unless otherwise indicated.

B. Secure screens to louver frames with stainless steel machine screws,
spaced at each corner and at 12 inch o.c. between.

C. [Louver Screen Frames]{.underline}: Fabricate screen frames with
mitered corners to louver sizes indicated and to comply with the
following requirements:

1\. Metal: Same kind and form of metal as indicated for louver frames to
which screens are attached.

a\. Reinforce extruded aluminum screen frames at corners with clips.

2\. Finish: Mill.

3\. Type: Rewireable frames with a driven spline or insert for securing
screen mesh.

D. [Louver Screening for Aluminum Louvers]{.underline}: Fit aluminum
louver screen frames with screening covering louver openings and
complying with the following requirements:

1\. Bird Screening: 1/2 inch square mesh formed with 0.063 inch diameter
aluminum wire.

2.06 [FINISHES, GENERAL]{.underline}

A. Comply with NAAMM \"Metal Finishes Manual\" for recommendations
relative to application and designations of finishes.

B. Finish louver after assembly.

2.07 [ALUMINUM FINISHES]{.underline}

A. Finish designations prefixed by \"AA\" conform to the system
established by the Aluminum Association for designating aluminum
finishes.

B. [High Performance Organic Coating]{.underline}: AA-C12C42R1x
(Chemical Finish: cleaned with inhibited chemicals; Chemical Finish:
chemical conversion coating, acid chromate-fluoride-phosphate
pretreatment; Organic Coating: as specified below). Prepare, pretreat,
and apply coating to exposed metal surfaces to comply with coating and
resin manufacturer\'s instructions.

1\. Fluorocarbon 2-Coat Coating System: Manufacturer\'s standard 2-coat
thermo-cured system, composed of specially formulated inhibitive primer
and fluorocarbon color topcoat containing not less than 70 percent
polyvinyldene resin by weight; complying with AAMA 605.2.

a\. Color: Match color and gloss of wall panels as specified in Section
\"Manufactured Roof and Wall Panels\".

PART 3 - EXECUTION

3.01 [PREPARATION]{.underline}

A. Coordinate setting drawings, diagrams, templates, instructions and
directions for installation of anchorages which are to be embedded in
concrete or masonry construction. Coordinate delivery of such items to
project site.

3.02 [INSTALLATION]{.underline}

A. Locate and place louver units plumb, level, and in proper alignment
with adjacent work.

B. Use concealed anchorages where possible. Provide brass or lead
washers fitted to screws where required to protect metal surfaces and to
make a weathertight connection.

C. Form closely fitted joints with exposed connections accurately
located and secured.

D. Provide perimeter reveals and openings of uniform width for sealants
and joint fillers, as indicated.

E. Repair finishes damaged by cutting, welding, soldering, and grinding
operations require for fitting and jointing. Restore finishes so there
is no evidence of corrective work. Return items which cannot be
refinished in field to shop, make required alterations and refinish
entire unit, or provide new units.

F. Install concealed gaskets, flashings, joint fillers, and insulation,
as louver installation progresses where required to make louver joints
weathertight. Comply with Division 7 Section \"Joint Sealers\" for
sealants applied during installation of louver.

3.03 [ADJUSTING AND PROTECTION]{.underline}

A. Protect louvers from damage of any kind during construction period
including use of temporary protective coverings where needed and
approved by louver manufacturer. Remove protective covering at time of
Substantial Completion.

B. Restore louvers damaged during installation and construction period,
so that no evidence remains of correction work. If results of
restoration are unsuccessful, as judged by Sandia Delegated
Representative (SDR), remove damaged units and replace with new units at
no additional cost to Sandia National Laboratories.

1\. Clean and touch-up minor abrasions in finishes with air-dried
coating that matches color and gloss of, and is compatible with,
factory-applied finish coating.

C. Test operation of adjustable wall louvers and adjust as needed to
produce fully functioning units which comply with requirements.

3.04 [CLEANING]{.underline}

A. Periodically clean exposed surfaces of louvers, which are not
protected by temporary covering, to remove fingerprints and soil during
construction period; do not let soil accumulate until final cleaning.

B. Before final inspection, clean exposed surfaces with water and with a
mild soap or detergent not harmful to finishes. Rinse thoroughly and dry
surface.

END OF SECTION