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									MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

SECTION 08 90 00 – LOUVERS AND VENTS



PART 1 - GENERAL

1.01   RELATED DOCUMENTS

       A. Drawings and general provisions of the Contract, including General and Supplementary
          Conditions and Division 01 Specification Sections, apply to this Section.

       B. Specifications throughout all Divisions of the Project Manual are directly applicable to this
          Section, and this Section is directly applicable to them.

1.02   REFERENCE STANDARDS

       A. The latest published edition of a reference shall be applicable to this Project unless identified
          by a specific edition date.

       B. All reference amendments adopted prior to the effective date of this Contract shall be
          applicable to this Project.

       C. All materials, installation and workmanship shall comply with all applicable requirements and
          standards.

1.03   DEFINITIONS

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

1.04   QUALITY ASSURANCE

       A. Single Source Responsibility: 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.

[DELETE BELOW IF NO WELDING.]

[ARCHITECT/ENGINEER MUST DELETE EVERYTHING IN BLUE AND IN BRACKETS BEFORE PUBLISHING.]
       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.

[RETAIN BELOW IF QUALIFIED ENGINEER REQUIRED UNDER "SUBMITTALS" ARTICLE.]
       C. Engineer Qualifications: Professional engineer licensed to practice in jurisdiction where
          Project is located and experienced in providing engineering services of the kind indicated
          which has resulted in the successful installation of louvers similar in material, design, and
          extent to that indicated for this Project.


 The University of Texas                                                         LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                               08 90 00
 MS081210                                                                                    1 OF 9
MDACC Project No. XX-XXXX                                                    MDACC PROJECT NAME
A/E Name                                                                           Issue Description
A/E Project No.                                                                     Month, 00, 0000

       D. SMACNA Standard:         Comply with SMACNA "Architectural Sheet Metal Manual"
          recommendations for fabrication, construction details, and installation procedures.

[DELETE BELOW IF NO MOTOR OPERATED ADJUSTABLE LOUVERS.]
       E. UL and NEMA Compliance: Provide motors and related components for motor operated
          adjustable louvers which are listed and labeled by UL and comply with applicable NEMA
          standards.

1.05   SUBMITTALS

       A. General:

          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

       B. Product Data:

          1. Manufacturer’s product data for each product.

          2. Product test reports evidencing compliance of units with performance requirements
             indicated.

[DELETE ABOVE AND BELOW IF NOT APPLICABLE.]
          3. Product certificates signed by louver manufacturers certifying that their products which
             comply with Project requirements are licensed to bear AMCA Seal based on tests made
             in accordance with AMCA Standard 500 and complying with AMCA Certified Ratings
             Program

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

       C. Samples:

          1. Samples for initial selection purposes in form of manufacturer's color charts showing full
             range of colors available for those units with factory applied color finishes.

[DELETE ABOVE IF COLORS, ETC. PRESELECTED AND SPECIFIED OR SCHEDULED. RETAIN BELOW WITH
OR WITHOUT ABOVE.]
          2. Samples for verification purposes of each type of metal finish required, prepared on six
             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. Shop Drawings:

          1. 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.

 The University of Texas                                                       LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                             08 90 00
 MS081210                                                                                  2 OF 9
MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

       E. Record Documents:

           1. Provide record approved product data, shop drawings, and samples.

1.06   PERFORMANCE REQUIREMENTS

       A. Structural Performance: 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:

[REQUIREMENTS BELOW UNDER EACH SET OF PERFORMANCE CRITERIA ARE INTENDED AS EXAMPLES
ONLY AND MUST BE REVISED TO SUIT INDIVIDUAL PROJECT CONDITIONS. VERIFY COMPLIANCE WITH
CODES.]
           1. Wind Load: Uniform pressure (velocity pressure) required by Code 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.

[REVISE TEMPERATURE RANGE TO SUIT TEMPERATURE CONDITIONS AT PROJECT LOCATION]
               a. Temperature Change (Range): 100 degrees F (55.5 degrees C).

       B. Air Performance, Water Penetration, and Air Leakage Ratings: Provide louvers complying
          with performance requirements indicated as demonstrated by testing manufacturers stock
          units, of height and width indicated, according to Air Movement and Control Association
          (AMCA) Standard 500.

1.07   PROJECT CONDITIONS

       A. Field Measurements: 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.

DELETE BELOW IF NOT ALLOWED.
           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   GENERAL

       A. All materials shall meet or exceed all applicable referenced standards, federal, state and local
          requirements, and conform to codes and ordinances of authorities having jurisdiction.




 The University of Texas                                                         LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                               08 90 00
 MS081210                                                                                    3 OF 9
MDACC Project No. XX-XXXX                                                       MDACC PROJECT NAME
A/E Name                                                                              Issue Description
A/E Project No.                                                                        Month, 00, 0000

2.02   MANUFACTURERS

       A. To establish standards of manufacture, operation, performance, and appearance,
          specifications are based on products of Construction Specialties, Inc. Subject to compliance
          with requirements, products of the following manufacturers will also be acceptable:

           1. Airolite Co.

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

           3. American Warming and Ventilating, Inc.

           4. Reliable Metal Products

           5. Ruskin Mfg. Div., Phillips Industries, Inc.

2.03   MATERIALS

[DELETE INAPPLICABLE MATERIALS BELOW. CORRELATE WITH MATERIALS SPECIFIED FOR LOUVERS
AND VENTS IN SUCCEEDING ARTICLES.]
       A. Galvanized Steel Sheet: ASTM A 526 or A 527, G90 zinc coating, mill phosphatized.

       B. Aluminum Sheet: ASTM B 209, Alloy 3003 or 5005 with temper as required for forming, or as
          otherwise recommended by metal producer to produce required finish.

       C. Aluminum Extrusions: ASTM B 221, Alloy 6063 T5 or T 52.

       D. Fasteners: 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.

       E. Anchors and Inserts: 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.

       F. Bituminous Paint: SSPC Paint 12 (cold applied asphalt mastic).

[DELETE BELOW IF NO GALVANIZED UNITS.]
       G. Galvanizing Repair Paint: High zinc dust content paint for regalvanizing welds in galvanized
          steel, complying with SSPC Paint 20.

2.04   FABRICATION, GENERAL

       A. Fabricate louvers and vents to comply with requirements indicated for design, dimensions,
          materials, joinery, and performance.




 The University of Texas                                                            LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                                  08 90 00
 MS081210                                                                                       4 OF 9
MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

       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.

[COORDINATE BELOW WITH DRAWINGS, PRODUCT DESCRIPTIONS, AND ENGINEERED WIND LOAD
REQUIREMENTS.]
       F. Provide vertical mullions of type and at spacings indicated but not further apart than
          recommended by manufacturer, or 72 inches on center, whichever is less. At horizontal joints
          between louver units provide horizontal mullions except where continuous vertical assemblies
          are indicated.

[DELETE PARAGRAPH BELOW IF NONE.]
       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 bolted connections between frame members
          necessary:

           1. With fillet welds, concealed from view.

[THE MODEL BELOW IS AN EXAMPLE ONLY; REVISE AS REQUIRED TO SUIT PROJECT. LOUVER DEPTH
AND CHARACTERISTICS MUST BE CAREFULLY CONSIDERED FOR THE MODEL SELECTED IN ORDER TO
PROVIDE RESISTANCE TO WIND DRIVEN RAIN, WHEN COMBINED WITH NORMAL OPERATING INTAKE AIR
VELOCITIES. CONFIRM WITH MECHANICAL ENGINEER THAT REQUIRED FREE AREA WILL BE PROVIDED
BY SELECTED MODEL.]
2.05   STORM RESISTANT LOUVERS

       A. Provide extruded aluminum louvers, stationary, storm proof type, with extrusions not less than
          0.081 inches thick. Provide 5 inches deep units; Construction Specialties "Model RS 5300" or
          accepted equivalent.

2.06   LOUVER SCREENS

       A. 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 on center between.

 The University of Texas                                                         LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                               08 90 00
 MS081210                                                                                    5 OF 9
MDACC Project No. XX-XXXX                                                     MDACC PROJECT NAME
A/E Name                                                                            Issue Description
A/E Project No.                                                                      Month, 00, 0000

       C. Louver Screen Frames: 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: Same finish as louver frames to which louver screens are attached.

          3. Type: Nonrewireable U shaped frames for permanently securing screen mesh.

       D. Louver Screening for Aluminum Louvers: 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.

2.07   BLANK OFF PANELS

       A. Fabricate blank off panels from materials and to sizes indicated and to comply with the
          following requirements:

          1. Finish: Match finish applied to louvers with respect to coating type, color and gloss.

          2. Attach blank off panels to back of louver frames with clips.

[DELETE THIS ARTICLE IF NO BLANK OFF PANELS.]
       B. Noninsulated Blank Off Panels: Metal sheet complying with the following requirements:

[RETAIN APPLICABLE METAL AND THICKNESS REQUIREMENT BELOW; THICKNESSES INDICATED ARE
EXAMPLES ONLY, REVISE AS REQUIRED TO SUIT LOUVER CONDITIONS. IF "AS INDICATED" RETAINED,
INDICATE ON DRAWINGS OR SCHEDULE.]
          1. Aluminum sheet for aluminum louvers, thickness as follows:

              a. 0.051 inch, unless otherwise indicated.

2.08   ALUMINUM FINISHES

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

       B. Finish louvers after assembly.

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

[RETAIN FINISHES BELOW APPLICABLE TO PROJECT. IF MORE THAN ONE RETAINED INDICATE
LOCATION OF EACH ON DRAWINGS OR BY INSERTED DESCRIPTION.]
       D. Class I Clear Anodized Finish:          AA M12C22A41 (Mechanical Finish: as fabricated,
          nonspecular; Chemical Finish: etched, medium matte; Anodic Coating: Class I Architectural:
          clear film thicker than 0.7 mil) complying with AAMA 607.1.


 The University of Texas                                                        LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                              08 90 00
 MS081210                                                                                   6 OF 9
MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

       E. Conversion Coated Finish: AA C12C42 (Chemical Finish: cleaned with inhibited chemicals;
          Chemical Finish: chemical conversion coating, acid chromate fluoride phosphate
          pretreatment).

[DELETE ABOVE AND RETAIN BELOW IF EXTENDED DELAY IN FIELD PAINTING ANTICIPATED.]
       F. Conversion Coated and Factory Primed Finish: AA C12C42R1x (Chemical Finish: cleaned
          with inhibited chemicals; Chemical Finish: chemical conversion coating, acid chromate
          fluoride phosphate pretreatment; Organic Coating: as specified below).

[REVISE BELOW IF DIFFERENT PRIMER REQUIRED.]
           1. Organic Coating: Air dried zinc chromate primer with not less than 2.0 mils dry film
              thickness.

       G. Class I Color Anodized Finish: AA M12C22A42/A44 (Mechanical Finish: as fabricated,
          nonspecular; Chemical Finish: etched, Medium Matte; Anodic Coating: Class II Architectural,
          film thicker than 0.7 mil with integral color or electrolytically deposited color) complying with
          AAMA 606.1 or AAMA 608.1.

[RETAIN COLOR REQUIREMENT BELOW WITH EITHER CLASS OF COLOR ANODIZED FINISH RETAINED
ABOVE.]
           1. Color: Light bronze.

           2. Color: Medium bronze.

           3. Color: Dark bronze.

           4. Color: Black.

[ABOVE ARE EXAMPLES ONLY AND MAY VARY BETWEEN MFRS IN COLOR RANGE AND AVAILABILITY.
RETAIN ONE OR DELETE ALL AND RETAIN ONE OF 2 REQUIREMENTS BELOW.]
           5. Color: Match Architect's sample.

           6. Color: As selected by Architect from within standard industry colors and color density
              range.

       H. Baked Enamel Finish: AA C12C42R1x (Chemical Finish: cleaned with inhibited chemicals;
          Chemical Finish: chemical conversion coating, acid chromate fluoride phosphate
          pretreatment; Organic Coating: as specified below). Apply baked enamel in compliance with
          paint manufacturer's specifications for cleaning, conversion coating, and painting.

[BELOW REFERENCES AAMA STANDARD FOR PIGMENTED ORGANIC COATING ON EXTRUSIONS.]
           1. Organic Coating:   Thermosetting modified acrylic enamel primer/topcoat system
              complying with AAMA 603.8 except with minimum dry film thickness of 1.5 mils, medium
              gloss.

[RETAIN ONE COLOR REQUIREMENT FROM BELOW.]
           2. Color: As indicated by reference to manufacturer's standard color designations.


 The University of Texas                                                         LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                               08 90 00
 MS081210                                                                                    7 OF 9
MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

            3. Color: Match Architect's samples.

            4. Color: As selected by Architect from manufacturer's standard colors.

[DELETE THE FOLLOWING PARAGRAPHS IF A HIGH PERFORMANCE COATING IS NOT REQUIRED.]
       I.   High Performance Organic Coating: 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.

[BELOW REFERENCES AAMA STANDARD FOR HIGH PERFORMANCE ORGANIC COATING ON EXTRUSIONS
AND PANELS. REVISE BELOW IF SPECIFIC PRODUCTS REQUIRED.]
            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.

[DELETE ABOVE OR BELOW, OR IF BOTH REQUIRED, RETAIN APPLICABLE COLOR REQUIREMENT FROM
CHOICES FOLLOWING PARAGRAPH BELOW UNDER EACH AND INDICATE LOCATION OF EACH ON
DRAWINGS OR SCHEDULES OR BY INSERT.]
            2. Fluorocarbon 3 Coat Coating System: Manufacturer's standard 3 coat thermo cured
               system composed of specially formulated inhibitive primer, fluorocarbon color coat, and
               clear fluorocarbon topcoat, with both color coat and clear topcoat containing not less than
               70 percent polyvinyldene resin by weight; complying with AAMA 605.2.

[RETAIN ONE COLOR REQUIREMENT FROM BELOW.]
                a. Color and Gloss: As indicated by reference to manufacturer's standard color and
                   sheen designations.

                b. Color and Gloss: Match Architect's sample.

                c.    Color and Gloss: As selected by Architect from manufacturer's standard choices for
                     color and gloss.


PART 3 - EXECUTION

3.01   PREPARATION

       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 the Project Site.

3.02   INSTALLATION

       A. Installation shall meet or exceed all applicable federal, state and local requirements,
          referenced standards and conform to codes and ordinances of authorities having jurisdiction.

       B. All installation shall be in accordance with manufacturer’s published recommendations.



 The University of Texas                                                         LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                               08 90 00
 MS081210                                                                                    8 OF 9
MDACC Project No. XX-XXXX                                                      MDACC PROJECT NAME
A/E Name                                                                             Issue Description
A/E Project No.                                                                       Month, 00, 0000

       C. Locate and place louver units plumb, level, and in proper alignment with adjacent Work.

       D. 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.

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

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

       G. Repair finishes damaged by cutting, welding, soldering, and grinding operations as required
          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.

       H. Protect galvanized and nonferrous metal surfaces from corrosion or galvanic action by
          application of a heavy coating of bituminous paint on surfaces which will be in contact with
          concrete, masonry, or dissimilar metals.

       I.   Install concealed gaskets, flashings, joint fillers, and insulation, as louver installation
            progresses where required to make louver joints weathertight. Comply with Division 07
            Section "Joint Sealers" for sealants applied during installation of louver.

3.03   ADJUSTING AND PROTECTION

       A. Protect louvers and vents 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 and vents damaged during installation and construction period, so that no
          evidence remains of correction Work. If results of restoration are unsuccessful, as judged by
          Architect, remove damaged units and replace with new units.

            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

       A. Periodically clean exposed surfaces of louvers and vents, 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 08 90 00




 The University of Texas                                                        LOUVERS AND VENTS
 M. D. Anderson Cancer Center                                                              08 90 00
 MS081210                                                                                   9 OF 9

								
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