Specs_-_P-650_Aircraft_Aprons_-_Amendment_0003.pdf

P650; FY18 Aircraft Apron, Taxiway and Support Facilities IFC (Rev.1 ) (Bldgs 4420 and 4421) Joint Base MDL, New Jersey 11 January 2019

SECTION 08 51 13

ALUMINUM WINDOWS

05/11

PART 1 GENERAL

1.1 RELATED SECTIONS

This Section shall be coordinated and designed in accordance with requirements of the following Sections of this Project:

a. Section 08 81 00 GLAZING, including the "Window System Design Load Compliances & Analysis" attached to Glazing Specification Section.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN ARCHITECTURAL MANUFACTURERS ASSOCIATION (AAMA)

AAMA 1503 (2009) Voluntary Test Method for Thermal Transmittance and Condensation Resistance of Windows, Doors and Glazed Wall Sections

AAMA 2605 (2011) Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels

AAMA 501.2 (2003) Quality Assurance and Diagnostic Water Leakage Field Check of Installed Storefronts, Curtain Walls, and Sloped Glazing Systems

AAMA/WDMA/CSA 101/I.S.2/A440 (2011) Standard/Specification for Windows, Doors, and Skylights

ASTM INTERNATIONAL (ASTM)

ASTM E1300 (2012a; E 2012) Determining Load Resistance of Glass in Buildings

ASTM F1642 (2012) Standard Test Method for Glazing and Glazing Systems Subject to Airblast Loadings

ASTM F2248 (2012) Standard Practice for Specifying an Equivalent 3-Second Duration Design Loading for Blast Resistant Glazing Fabricated with Laminated Glass

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 4-010-01 (2012; Change 1-Oct-2013) DoD Minimum

SECTION 08 51 13 Page 1

Antiterrorism Standards for Buildings

GREEN SEAL (GS)

GS-36 (2011) Commercial Adhesives

NATIONAL FENESTRATION RATING COUNCIL (NFRC)

NFRC 100 (2014) Procedure for Determining Fenestration Product U-Factors

NFRC 200 (2014) Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 101 (2015) Life Safety Code

SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT (SCAQMD)

SCAQMD Rule 1168 (1989; R 2005) Adhesive and Sealant Applications

U.S. GREEN BUILDING COUNCIL (USGBC)

LEED NC (2009) Leadership in Energy and Environmental Design(tm) New Construction Rating System

1.3 CERTIFICATION

Each prime window unit must bear the AAMA Label warranting that the product complies with AAMA/WDMA/CSA 101/I.S.2/A440 . Certified test reports attesting that the prime window units meet the requirements of AAMA/WDMA/CSA 101/I.S.2/A440 , including test size, will be acceptable in lieu of product labeling.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Meeting Minutes of Pre-Construction Meeting

SD-02 Shop Drawings

Windows; G Fabrication Drawings; G Delegated Design; G

SD-03 Product Data

SECTION 08 51 13 Page 2

Windows; G Fasteners; G; ( LEED NC) Window performance; G Thermal-Barrier Windows; G Mullions; G Weatherstripping; G Accessories; G Thermal performance

Submit documentation for Energy Star qualifications.

SD-04 Samples

Finish Sample Window Sample

SD-05 Design Data

Structural calculations for deflection; G Design Analysis; G Computational Design Analysis

Submit design analysis with calculations showing that the design of each different size and type of aluminum window unit and its anchorage to the structure meets the minimum antiterrorism standards required by paragraph "Minimum Antiterrorism Performance", unless conformance is demonstrated by Standard Airblast Test results. Calculations verifying the structural performance of each window proposed for use, under the given loads, shall be prepared and signed by a registered Professional Engineer. The window components and anchorage devices to the structure, as determined by the design analysis, shall be reflected in the shop drawings.

SD-06 Test Reports

Minimum condensation resistance factor Standard Airblast Test; G

For Minimum Antiterrorism windows, in lieu of a Design Analysis, results of airblast testing, whether by arena test or shocktube, shall be included in a test report, providing information in accordance with ASTM F1642 and UFC 4-010-01 requirements, as prepared by the independent testing agency performing the test.

The test results shall demonstrate the ability of each window proposed for use to withstand the airblast loading parameters and achieve the hazard level rating specified in paragraph "Standard Airblast Test Method".

SD-10 Operation and Maintenance Data

Windows, Data Package 1; G

Submit in accordance with Section 01 78 23 OPERATION AND

MAINTENANCE DATA.

Plastic Identification

SECTION 08 51 13 Page 3

When not labeled, identify types in Operation and Maintenance Manual.

1.5 QUALITY ASSURANCE

1.5.1 Shop Drawing Requirements

Provide drawings that indicate elevations of windows, full-size sections, thickness and gages of metal, fastenings, proposed method of anchoring, size and spacing of anchors, details of construction, method of glazing, method and materials for weatherstripping, and installation details, and other related items.

1.5.2 Sample Requirements

1.5.2.1 Finish Sample Requirements

Submit color chart of standard factory color coatings when factory-finish color coating is to be provided.

1.5.2.2 Window Sample Requirements

Submit one full-size window of each type proposed for use, complete with AAMA Label, glazing, hardware, anchors, and other accessories. Where screens or weatherstripping is required, fit sample windows with such items that are to be used. After approval, install each sample in work, clearly identified, and record its location.

Submit one full-size corner of each window type proposed for use.

1.5.3 Design Data Requirements

Submit calculations to substantiate compliance with deflection requirements and Minimum Antiterrorism Performance criteria. A registered Professional Engineer must provide calculations.

Submit design analysis with calculations showing that the design of each different size and type of aluminum window unit and its anchorage to the structure meets the requirements of paragraph "Minimum Antiterrorism Performance Criteria". Calculations verifying the structural performance of each window proposed for use, under the given loads, must be prepared and signed by a registered professional engineer. Reflect the window components and anchorage devices to the structure, as determined by the design analysis, in the shop drawings.

1.5.4 Test Report Requirements

Submit test reports for each type of window attesting that identical windows have been tested and meet the requirements specified herein for conformance to AAMA/WDMA/CSA 101/I.S.2/A440 including test size, and minimum condensation resistance factor (CRF), and for Minimum Antiterrorism windows, UFC 4-010-01 , in lieu of a Design Analysis, results of a Standard Airblast Test.

1.5.5 Preinstallation Conference

Conduct conference at Project site. Provide Meeting Minutes of this Conference to the Contracting Officer.

a. Review and finalize construction schedule and verify availability

SECTION 08 51 13 Page 4 of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

b. Review and discuss the finishing of aluminum windows that is required to be coordinated with the finishing of other aluminum work for color and finish matching.

c. Review, discuss, and coordinate the interrelationship of aluminum windows with other exterior wall components. Include provisions for anchoring, flashing, weeping, sealing perimeters, and protecting finishes.

d. Review and discuss the sequence of work required to construct a watertight and weathertight exterior building envelope.

e. Inspect and discuss the condition of substrate and other preparatory work performed by other trades.

1.6 DELIVERY AND STORAGE

Deliver windows to project site in an undamaged condition. Use care in handling and hoisting windows during transportation and at the jobsite.

Store windows and components out of contact with the ground, under a weathertight covering, so as to prevent bending, warping, or otherwise damaging the windows. Repair damaged windows to an "as new" condition as approved. If windows can not be repaired, provide a new unit.

1.7 PROTECTION

Protect finished surfaces during shipping and handling using the manufacturer's standard method. Do not apply coatings or lacquers to surfaces to which caulking and glazing compounds must adhere.

1.8 SUSTAINABLE DESIGN REQUIREMENTS

1.8.1 Local/Regional Materials

Use materials or products extracted, harvested, or recovered, as well as manufactured, within a 500 mileradius from the project site, if available from a minimum of three sources.

1.9 FIELD MEASUREMENTS

Take field measurements prior to preparation of the drawings and fabrication.

1.10 PERFORMANCE REQUIREMENTS

1.10.1 Wind Loading Design Pressure

Design window components, including mullions, hardware, and anchors, to withstand a wind-loading design pressure of at least 80 pounds per square foot (psf).

1.10.2 Tests

Test windows proposed for use in accordance with AAMA/WDMA/CSA 101/I.S.2/A440 for the particular type and quality window specified.

SECTION 08 51 13 Page 5

Perform tests by a nationally recognized independent testing laboratory equipped and capable of performing the required tests. Submit the results of the tests as certified laboratory reports required herein.

Minimum design load for a uniform-load structural test must be 50 psf.

1.11 BLAST PERFORMANCE REQUIREMENTS

1.11.1 Blast Design Criteria

The design, fabrication, and installation of blast resistant window systems, attachments and anchorages shall withstand the design blast loads.

1.11.1.1 Design Blast Loads

The following design blast load is a dynamic load to be used with an inelastic dynamic structural analysis method.

a. Linearly decaying load function with peak pressure and impulse.

1. All windows indicated: 1.10 psi and 29.69 psi-msec.

b. Negative phase effects shall not be considered.

1.11.1.2 Design Approach

Window systems fabricated using laminated glass may be designed using one of the following approaches.

a. Window systems may be designed using ASTM F2248 and ASTM E1300. This method results in a medium level of protection which is a higher level of protection than required. Also note that ASTM F2248 may only be used for a limited range of charge weights and standoff distances.

For charge weights and standoffs outside of the range of ASTM F2248, window systems shall either be designed using a dynamic analysis or tested in accordance with ASTM F1642.

b. Window systems may be designed using a dynamic analysis.

c. Window systems may be tested in accordance with ASTM F1642. Testing shall include the window system including connections. The structural supporting material used in the test for fastener attachment shall be representative of the fielded application.

1.11.1.3 Analysis

Design of mullions using inelastic dynamic structural analysis methods shall be designed using one of the following approaches:

a. The specified blast load shall be applied to the window area and the resulting dynamic window edge reactions should be applied to the resisting mullion.

b. The specified blast load acting on the window may be applied to the tributary area of the mullion.

SECTION 08 51 13 Page 6

1.11.1.4 Deformation Limitations

1.11.1.4.1 Rotation

Rotation of mullions shall meet the following criteria:

a. Over the full length of the mullion, rotations of mullion ends shall not exceed 6 degrees at design blast loading.

1.11.1.4.2 Ductility

Ductility ratio of mullions shall not exceed 7 for aluminum at design blast loading. No ductility limit for steel.

1.11.1.5 Anchorage and Connection Design Criteria

The window systems shall be designed, fabricated, and installed to resist the design blast loads specified in the paragraph entitled "Design Blast Loads" of this specification, within the limits and under the conditions below:

a. Reaction forces: Internal connections and anchorages to the supporting structure shall be engineered for the direct forces resulting from the window and curtain wall framing member analyses.

b. Design anchorage and connections to resist the calculated reaction forces using the following procedures:

1. Metal-to-metal connections: using the procedures outlined in the latest versions of the AISC Steel Construction Manual.

2. Metal-to-Concrete: using the procedures outlined in the latest version of ACI 318 for anchorage to concrete.

3. Load combination shall be in accordance with ASCE 7 for checking the capacity of a structure or structural element to withstand the effects of an extraordinary event.

c. For anchorage and connections designed based on manufacturer supplied data, the design is to be based on the "Ultimate Capacity" value provided by manufacturer. A factor of safety of 1.0 shall be provided for ductile failure modes (ex: flexure) and 1.5 for brittle failure modes (ex: shear).

d. Metal to metal connections shall be designed such that the weld material is stronger than the base material.

1.11.1.6 Aluminum Framing Members

a. Minimum aluminum yield strength shall be no less than 31,000 psi.

b. Snap on elements or other aluminum extrusions that are not structurally connected together to act as a single composite member shall not be considered in determining the structural capacity of the mullion.

c. The aluminum mullions shall be positively fastened to adequately transfer the blast end reaction forces across the connection between adjacent framing members.

SECTION 08 51 13 Page 7

1.11.1.7 Steel Framing Members

Minimum steel yield strength shall be 36,000 psi for steel bars and 46,000 psi for steel tubes used to reinforce the aluminum mullions of the windows. Alternatively, 50,000 psi steel bars may be used to reinforce jambs or mullions if necessary to meet required profile depths.

1.11.1.8 Dynamic Enhancement Factor

A dynamic enhancement factor of 1.2 may be applied to the yield stress for steel members, to account for strain rate effects. Similarly, a dynamic enhancement factor no greater than 1.0 may be applied to the yield stress for aluminum.

1.11.1.9 Composite Section Properties

Composite section properties of mullion components may only be used if calculations demonstrate strain compatibility across the interface.

a. This requirement applies to the inner and outer components of thermally broken systems.

1.11.1.10 Combined Section Properties

Combined section properties of mullion components may be used if calculations demonstrate deformation compatibility between the aluminum and steel components.

1.11.1.11 Snap-on Elements

Snap-on elements or other architectural extrusions that do not have a positive connection to the main supporting element shall not be included in determining the mullion resistance or attachment capacity.

1.11.2 Blast Testing Alternate

In lieu of providing an inelastic dynamic structural analysis of the entrance and storefront assemblies, assemblies may be blast tested using an open-air arena test or shock-tube test. The blast test shall conform to the requirements of ASTM F1642.

1.11.2.1 Blast Test Loads

Blast test loads shall comply with the specified blast design loads. The applied impulse of the test load will be taken at the end of the linearly decaying portion of the pressure time history. Negative phase effects and build-up of impulse beyond the linearly decaying portion of the function shall not be considered.

1.11.2.2 Glazing

Glazing shall meet the performance requirements provided in Section 08 81 00 GLAZING. The height of the bottom of the test window above the ground should be consistent with the actual field conditions.

1.11.2.3 Test Window Attachment

The window system shall be attached to the test frame with anchors identical to what will be used in the field. Where the supporting

SECTION 08 51 13 Page 8 conditions are different from what is used in the blast test (i.e.

connection geometry, anchor size, anchor spacing and/or substrate being attached to), supporting calculations shall be provided to verify the adequacy of connections. Anchorage design forces used to verify the adequacy of the connection in different support conditions shall be computed either based on the capacity of the anchors used in the test structure (full shear and tension capacity based on controlling failure mechanism) or on reactions calculated from a dynamic analysis which accounts for the full capacity of the window sections and glazing edge reactions.

1.11.2.4 Test Acceptance Criteria

Per ASTM F1642, three consecutive passing tests shall be performed in order to constitute an acceptable system. Although permanent deformation of the entrance and storefront framing system is permitted, the tested entrance and storefront assembly shall comply with the following criteria in the post-test evaluation.

a. Frame members or pieces of members, architectural trim or cover pieces, fasteners and any other component of the window system may not fall greater than 3.3 feet from the plane of the window, consistent with a glazing Performance Condition 3a or Very Low Hazard Level.

b. Local deformations in the frame itself may occur around connections and anchorages but no screws shall fail in shear or pull out from the supporting structure.

c. The results of the blast test may be applied to entrance and storefront assemblies with the same tested dimensions (combined dimensional variance of the assembly opening of up to 20% maximum is acceptable), glazing make-up, framing system, internal connections, and anchorages.

d. Where test data does not comply with the blast response criteria established in this section, is not complete, or does not match the assemblies or the design loading function required for this project, additional testing or supplemental engineering design calculations must be provided.

e. Where connections or anchorages vary from what was tested, calculations shall be provided to clearly demonstrate the load path between the window system and the supporting structure, the magnitude of the forces being transferred, and calculations for the controlling failure mechanisms consistent with the anchorage and connection design criteria listed in this specification.

1.11.3 Blast Calculations

The submission of calculations and blast data is required from the contractor for review and approval. Requirements for the calculations and blast data are described in the paragraph entitled "Blast Report" of this specification.

1.11.4 Blast Report

Submit a blast report, including a summary narrative, structural design sketches, and structural design calculations, for each glass unit type and each building elevation required to resist blast loads, showing compliance

SECTION 08 51 13 Page 9 with blast performance requirements for review and approval. Each blast resistant window unit or assembly (including window size, glazing thickness, glazing type, and PVB laminate thickness) shall be verified through analysis to meet or exceed the minimum required performance condition in response to the specified design blast loads.

a. Blast Report shall be prepared and submitted by a qualified blast engineering consultant as defined in the paragraph entitled "Blast Consultant Qualifications" of this specification. The blast report shall be signed and sealed by a registered professional engineer.

b. Blast engineering design calculations must be completed for all window units or assemblies. Test data alone will not be accepted. Test data may be submitted in addition to the engineering design calculations, although test data is not required.

1.11.5 Blast Test Report

Blast test data and report must be submitted for review and approval for each entrance and storefront assembly for which blast test data will replace inelastic dynamic structural analysis of the entrance and storefront system. The report must show compliance with the blast performance requirements specified. Blast test report shall be prepared in accordance with ASTM F1642. In addition, the blast test report should include but is not limited to the following:

a. As-built shop drawings of tested configuration.

b. Description of window system anchorages used to attach to the test frame.

c. Detailed description and photographs of the post-test conditions of the window frame and connections.

d. Detailed description and photographs of any region where severe deformations, damage, or failures to the window frame or connections are observed.

If supplementary calculations are required to demonstrate performance of varying entrance and storefront assembly conditions, submit calculations per the paragraph entitled "Blast Calculations" of this specification.

1.11.6 Blast Analyses Standards

Comply with the applicable provisions and recommendations of the standards below. Where standards conflict, the more stringent requirements shall apply.

All building components requiring blast resistance for the project must meet requirements of Department of Defense (DoD) facilities and shall be designed using established methods and approaches for determining dynamic loads and dynamic structural response. Design and analysis approaches should be consistent with those in the technical manuals below:

a. Unified Facilities Criteria UFC 4-010-01 "DoD Minimum Antiterrorism Standards for Buildings (February 9, 2012 with Change 1 dated October 1, 2013).

SECTION 08 51 13 Page 10

b. Unified Facilities Criteria UFC 4-020-01 Security Engineering Facilities Planning Manual (September 11, 2008).

1.12 DRAWINGS

Submit the Fabrication Drawings for aluminum window units showing complete window assembly including weatherstripping and subframe assembly details.

1.13 WINDOW PERFORMANCE

Provide Delegated Design for the window frames, window fasteners, and structural steel fabrications for complete window system according to requirements of this Section.

Aluminum windows must meet the following performance requirements.

Perform testing requirements by an independent testing laboratory or agency.

1.13.1 Structural Performance

Structural test pressures on window units must be for positive load (inward) and negative load (outward). After testing, there will be no glass breakage or permanent damage. There must be no permanent deformation of any main frame, sash or ventilator member in excess of the requirements established by AAMA/WDMA/CSA 101/I.S.2/A440 for the window types and classification specified in this section.

1.13.2 Minimum Antiterrorism Performance

Windows shall meet the minimum antiterrorism performance requirements of UFC 4-010-01 and as specified in the paragraphs below. Conformance to the performance requirements shall be validated by one of the following methods.

1.13.2.1 Dynamic Design Analysis Method

Window framing members, anchors, and glazing may be designed using a dynamic analysis to prove the window system will provide performance equivalent to or better than a very low hazard rating in accordance with ASTM F1642 associated with the applicable low level of protection for the project.

1.13.2.2 Standard Airblast Test Method

As an alternative to the Computational Design Analysis Method, each Minimum Antiterrorism window type shall be tested for evaluation of hazards generated from airblast loading in accordance with ASTM F1642 by an independent testing agency regularly engaged in blast testing. For proposed window systems that are of the same type as the tested system but of different size, the test results may be accepted provided the proposed window size is within the range from 25 percent smaller to 10 percent larger in area, than the tested window. Proposed windows of a size outside this range shall require testing to evaluate their hazard rating.

Testing may be by shocktube or arena test. The test shall be performed on the entire proposed window system, which shall include, but not be limited to, the glazing, its framing system, and all anchorage devices. Anchorage of the window frame or subframe shall replicate the method of installation to be used for the project. The minimum airblast loading parameters for the test shall be as follows: Peak positive pressure of 40 kPa and

SECTION 08 51 13 Page 11 positive phase impulse of 285 kPa-msec. The hazard rating for the proposed window systems, as determined by the rating criteria of ASTM F1642, shall not exceed the "Very Low Hazard" rating (i.e. the "No Break", "No Hazard", "Minimal Hazard" and "Very Low Hazard" ratings are acceptable.

"Low Hazard" and "High Hazard" ratings are unacceptable). Results of window systems previously tested by test protocols other than ASTM F1642 may be accepted provided the required loading, hazard level rating, and size limitations stated herein are met.

1.13.3 Air Infiltration

Air infiltration must not exceed the amount established by AAMA/WDMA/CSA 101/I.S.2/A440 for each window type.

1.13.4 Water Penetration

Water penetration must not exceed the amount established by AAMA/WDMA/CSA 101/I.S.2/A440 for each window type.

1.13.5 Thermal Performance

Non-residential aluminum windows (including frames and glass) shall be certified by the National Fenestration Rating Council with a whole-window Solar Heat Gain Coefficient (SHGC) maximum as scheduled determined according to NFRC 200 procedures and a U-factor maximum as scheduled in accordance with NFRC 100.

1.13.6 Life Safety Criteria

Provide windows that conform to NFPA 101 Life Safety Code when rescue and/or second means of escape are indicated.

1.14 QUALIFICATION

Window manufacturer must specialize in designing and manufacturing the type of aluminum windows specified in this section, and have a minimum of 5 years of documented successful experience. Manufacturer must have the facilities capable of meeting contract requirements, single-source responsibility and warranty.

1.15 MOCK-UPS

Before fabrication, full-size mock-up of each type of aluminum window complete with glass and AAMA certification label for structural purposes and NFRC Temporary and Permanent Label for certification of thermal performance ratting will be required for review of window construction and quality of hardware operation.

1.16 WARRANTY

Manufacturer agrees to repair or replace aluminum windows that fail in materials or workmanship within specified warranty period.

a. Failures include, but are not limited to, the following:

(1) Failure to meet performance requirements.

(2) Structural failures including excessive deflection, water leakage, condensation, and air infiltration.

(3) Faulty operation of movable sash and hardware.

SECTION 08 51 13 Page 12

(4) Deterioration of materials and finishes beyond normal weathering.

(5) Failure of insulating glass.

b. Warranty Period:

(1) Window: Ten years from date of Substantial Completion.

(2) Glazing Units: Ten years from date of Substantial Completion.

(3) Aluminum Finish: Ten years from date of Substantial Completion.

PART 2 PRODUCTS

2.1 WINDOWS

Provide prime windows that comply with AAMA/WDMA/CSA 101/I.S.2/A440 and the requirements specified herein. In addition to compliance with AAMA/WDMA/CSA 101/I.S.2/A440 , window framing members for each individual light of glass must not deflect to the extent that deflection perpendicular to the glass light exceeds L/175 of the glass edge length when subjected to uniform loads at specified design pressures. Provide Structural calculations for deflection to substantiate compliance with deflection requirements. Provide windows of types, performance classes, performance grades, combinations, and sizes indicated or specified.

Design windows to accommodate glass, weatherstripping, and accessories to be furnished. Each window must be a complete factory assembled unit with or without glass installed. Dimensions shown are minimum. Provide windows with insulating glass and thermal break necessary to achieve a minimum Condensation Resistance Factor (CRF) of 45 when tested in accordance with AAMA 1503.

2.1.1 Awning Windows (AP)

Type AP-[R15][LC25][CW30][AW40][[R][LC][CW] [AW]- [_____] (Optional Performance Grade)]. Conceal operating mechanism within the frame members or enclose within a metal casing not less than 0.0625 inch thick sheet aluminum.

2.1.2 Glass and Glazing

Materials are specified in Section 08 81 00 GLAZING.

2.1.3 Caulking and Sealing

Are specified in Section 07 92 00 JOINT SEALANTS.

2.1.4 Weatherstripping

AAMA/WDMA/CSA 101/I.S.2/A440 .

2.2 FABRICATION

Fabrication of window units must comply with AAMA/WDMA/CSA 101/I.S.2/A440 .

2.2.1 Provisions for Glazing

Design windows and rabbets suitable for glass thickness shown or specified.

For minimum antiterrorism windows, attach glazing to its supporting frame using structural silicone sealant or adhesive glazing tape in accordance with ASTM F2248. Design sash for double glazing and for

SECTION 08 51 13 Page 13 securing glass with metal beads, glazing clips, glazing channels, or glazing compound.

2.2.2 Weatherstripping

Provide for ventilating sections of all windows to ensure a weather-tight seal meeting the infiltration requirements specified in AAMA/WDMA/CSA 101/I.S.2/A440 . Provide easily replaceable factory-applied weatherstripping. Use molded vinyl, molded or molded-expanded neoprene or molded or expanded Ethylene Propylene Diene Terpolymer (EPDM) compression-type weatherstripping for compression contact surfaces. Use treated woven pile or wool, or polypropylene or nylon pile bonded to nylon fabric and metal or plastic backing strip weatherstripping for sliding surfaces. Do no use neoprene or polyvinylchloride weatherstripping where they will be exposed to direct sunlight.

2.2.3 Fasteners

Fabricated from 100 percent re-melted steel. Use fasteners as standard with the window manufacturer for windows, trim, and accessories.

Self-tapping sheet-metal screws are not acceptable for material more than 1/16 inch thick.

2.2.4 Adhesives

Comply with applicable regulations regarding toxic and hazardous materials, GS-36, SCAQMD Rule 1168 , and as specified in Section 07 92 00

JOINT SEALANTS.

2.2.5 Drips and Weep Holes

Provide continuous drips over heads of top ventilators. Provide drips and weep holes as required to return water to the outside.

2.2.6 Mullions and Transom Bars

Provide mullions between multiple window units to resist two times (2X) glazing resistance in accordance with ASTM F2248 and ASTM E1300. Provide mullions with a thermal break. Secure mullions and transom bars to adjoining construction and window units in such a manner as to permit expansion and contraction and to form a weathertight joint. Provide mullion covers on the interior and exterior to completely close exposed joints and recesses between window units and to present a neat appearance.

2.2.7 Accessories

Provide windows complete with necessary fastenings, clips, fins, anchors, glazing beads, and other appurtenances necessary for complete installation and proper operation. Furnish extruded aluminum subframe receptors and subsill with each window unit.

2.2.7.1 Fasteners

Provide concealed anchors of the type recommended by the window manufacturer for the specific type of construction. Anchors and fasteners must be compatible with the window and the adjoining construction. Provide a minimum of three anchors for each jamb located approximately 6 inches from each end and at midpoint.

SECTION 08 51 13 Page 14

2.2.7.2 Window Anchors

Anchoring devices for installing windows must be made of aluminum, cadmium-plated steel, stainless steel, or zinc-plated steel conforming to

AAMA/WDMA/CSA 101/I.S.2/A440 .

2.2.8 Finishes

Exposed aluminum surfaces must be factory finished with an organic coating.

Color shall match existing.

2.2.8.1 Organic Coating

Clean and prime exposed aluminum surfaces. Provide a high-performance finish in accordance with AAMA 2605 with total dry film thickness of not less than 1.2 mils.

2.3 THERMAL-BARRIER WINDOWS

Provide thermal-barrier windows, complete with accessories and fittings, where indicated.

Specify material and construction except as follows:

a. Aluminum alloy must be 6063-T6.

b. Frame construction, including operable sash, must be factory-assembled and factory-sealed inner and outer aluminum completely separated from metal-to-metal contact. Join assembly by a continuous, concealed, low conductance divider housed in an interlocking extrusion of the inner frame. Metal fasteners, straps, or anchors will not bridge the connection between the inner and outer frame.

2.4 MULLIONS

Provide mullions between multiple-window units where indicated.

Mullions and mullion covers must be the profile indicated, reinforced as required for the specified wind loading, and securely anchored to the adjoining construction. Mullion extrusion will include serrations or pockets to receive weatherstripping, sealant, or tape at the point of contact with each window flange.

Mullion assembly must include aluminum window clamps or brackets screwed or bolted to the mullion and the mullion cover.

Mullion cover must be screw-fastened to the mullion unless otherwise indicated.

Mullion reinforcing members shall be fabricated of the materials specified in AAMA/WDMA/CSA 101/I.S.2/A440 and meet the specified design loading.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Method of Installation

Install in accordance with the window manufacturer's printed instructions

SECTION 08 51 13 Page 15 and details. Build in windows as the work progresses or install without forcing into prepared window openings. Set windows at proper elevation, location, and reveal; plumb, square, level, and in alignment; and brace, strut, and stay properly to prevent distortion and misalignment. Protect ventilators and operating parts against accumulation of dirt and building materials by keeping ventilators tightly closed and locked to frame. Bed screws or bolts in sill members, joints at mullions, contacts of windows with sills, built-in fins, and subframes in mastic sealant of a type recommended by the window manufacturer. Install and caulk windows in a manner that will prevent entrance of water and wind. Fasten insect screens securely in place.

3.1.2 Dissimilar Materials

Where aluminum surfaces are in contact with, or fastened to masonry, concrete, wood, or dissimilar metals, except stainless steel or zinc, protect the aluminum surface from dissimilar materials as recommended in the Appendix to AAMA/WDMA/CSA 101/I.S.2/A440 . Do not coat surfaces in contact with sealants after installation with any type of protective material.

3.1.3 Anchors and Fastenings

Make provision for securing units to each other, to masonry, and to other adjoining construction. Windows installed in masonry walls must have head and jamb members designed to recess into masonry wall not less than 7/16 inch.

3.2 FIELD QUALITY CONTROL

3.2.1 Water Leakage Test

Upon completion, test for water leakage in accordance with AAMA 501.2 .

Testing is required on 75% of the newly installed window systems on each side of the building. Notify Contracting Officer at least 7 days in advance of testing.

3.2.2 Connections

Inspect all connections and welds.

3.3 CLEANING

Clean interior and exterior surfaces of window units of mortar, plaster, paint spattering spots, and other foreign matter to present a neat appearance, to prevent fouling of weathering surfaces and weather-stripping, and to prevent interference with the operation of hardware. Replace all stained, discolored, or abraded windows that cannot be restored to their original condition with new windows.

3.4 WASTE MANAGEMENT

Separate corrugated cardboard and protective materials in accordance with the Waste Management Plan and place in designated areas for reuse or recycling. Place materials defined as hazardous or toxic waste in

SECTION 08 51 13 Page 16 designated containers. Close and seal tightly all partly used sealant containers and store protected in well ventilated fire-safe area at moderate temperature. Place used sealant tubes and containers in areas designated for hazardous materials.

-- End of Section --

SECTION 08 51 13 Page 17

SECTION 08 81 00

GLAZING

08/11

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI Z97.1 (2015) Safety Glazing Materials Used in Buildings - Safety Performance Specifications and Methods of Test

ASTM INTERNATIONAL (ASTM)

ASTM C1036 (2016) Standard Specification for Flat Glass

ASTM C1048 (2012; E 2012) Standard Specification for Heat-Strengthened and Fully Tempered Flat Glass

ASTM C1172 (2014) Standard Specification for Laminated Architectural Flat Glass

ASTM C920 (2014a) Standard Specification for Elastomeric Joint Sealants

ASTM E1300 (2016) Standard Practice for Determining Load Resistance of Glass in Buildings

ASTM E413 (2016) Classification for Rating Sound Insulation

ASTM E90 (2009) Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements

GLASS ASSOCIATION OF NORTH AMERICA (GANA)

GANA Glazing Manual (2008) Glazing Manual

GANA Sealant Manual (2008) Sealant Manual

INSULATING GLASS MANUFACTURERS ALLIANCE (IGMA)

IGMA TB-1200 (1983; R 2016) Guidelines for Insulating Glass Dimensional Tolerances

IGMA TB-3001 (2001) Guidelines for Sloped Glazing

IGMA TM-3000 (1990; R 2016) North American Glazing

SECTION 08 81 00 Page 1

Guidelines for Sealed Insulating Glass Units for Commercial & Residential Use

NATIONAL FENESTRATION RATING COUNCIL (NFRC)

NFRC 100 (2014) Procedure for Determining Fenestration Product U-Factors

NFRC 200 (2014) Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

16 CFR 1201 Safety Standard for Architectural Glazing Materials

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.

Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Installation

Drawings showing complete details of the proposed setting methods, mullion details, edge blocking, size of openings, frame details, materials, and types and thickness of glass.

Drawings showing complete details of the proposed setting methods, mullion details, edge blocking, size of openings, frame details, materials, and types and thickness of glass.

SD-03 Product Data

Insulating Glass

Exterior Glazing - performance documentation for all glass types

Glazing Accessories

Manufacturer's descriptive product data, handling and storage recommendations, installation instructions, and cleaning instructions.

Environmental Data

SD-04 Samples

Insulating Glass

Glazing Compound

SECTION 08 81 00 Page 2

Glazing Tape

Sealant

Two 8 by 10 inch samples of each of the following: tinted glass, patterned glass, heat-absorbing glass, and insulating glass units.

Three samples of each indicated material. Samples of plastic sheets must be minimum 5 by 7 inches.

SD-07 Certificates

Insulating Glass

Certificates stating that the glass meets the specified requirements. Labels or manufacturers marking affixed to the glass will be accepted in lieu of certificates.

Glazing Accessories

Certificates from the manufacturer attesting that the units meet the luminous and solar radiant transmission requirements for heat absorbing glass.

SD-08 Manufacturer's Instructions

Setting and Sealing Materials

Glass Setting

Submit glass manufacturer's recommendations for setting and sealing materials and for installation of each type of glazing material specified.

SD-11 Closeout Submittals

1.3 SYSTEM DESCRIPTION

Fabricate and install watertight and airtight glazing systems to withstand thermal movement and wind loading without glass breakage, gasket failure, deterioration of glazing accessories, or defects in the work. Glazed panels must comply with the safety standards, in accordance with ANSI Z97.1 , and comply with indicated wind/snow loading in accordance with ASTM E1300.

1.4 DELIVERY, STORAGE, AND HANDLING

Deliver products to the site in unopened containers, labeled plainly with manufacturers' names and brands. Store glass and setting materials in safe, enclosed dry locations and do not unpack until needed for installation. Handle and install materials in a manner that will protect them from damage.

1.5 ENVIRONMENTAL REQUIREMENTS

Do not start glazing work until the outdoor temperature is above40 degrees F and rising, unless procedures recommended by the glass manufacturer and approved by the Contracting Officer are made to warm the glass and rabbet

SECTION 08 81 00 Page 3 surfaces. Provide ventilation to prevent condensation of moisture on glazing work during installation. Do not perform glazing work during damp or rainy weather.

1.6 ANTI-TERRORISM FORCE PROTECTION

In addition to the standards specified elsewhere in this Section, Exterior Glazing shall comply with the ATFB requirements for impact and antiterrorism protection set forth in Section 01 35 13 SPECIAL PROJECT PROCEDURES and the report attached to that section.

1.7 WARRANTY

1.7.1 Warranty for Insulating Glass Units

Warranty insulating glass units against development of material obstruction to vision (such as dust, fogging, or film formation on the inner glass surfaces) caused by failure of the hermetic seal, other than through glass breakage, for a 10-year period following acceptance of the work. Provide new units for any units failing to comply with terms of this warranty within 45 working days after receipt of notice from the Government.

1.7.2 Warranty for Polycarbonate Sheet

For a 5-year period following acceptance of the work:

a. Warranty Type I, Class A (UV stabilized) sheets against breakage;

b. Warranty Type III (coated, mar-resistant) sheets against breakage and against coating delamination;

c. Warranty Type IV (coated sheet) against breakage and against yellowing;

d. Warranty extruded polycarbonate profile sheet against breakage.

For a 10-year period following acceptance of the work, warranty Type IV against yellowing and loss of light transmission.

PART 2 PRODUCTS

2.1 PRODUCT SUSTAINABILITY CRITERIA

2.2 GLASS

ASTM C1036, unless specified otherwise. In doors and sidelights, provide safety glazing material conforming to 16 CFR 1201 .

2.2.1 Laminated Glass

ASTM C1172, Kind LA fabricated from two nominal 1/8 inchpieces of Type I, Class 1, Quality q3, flat annealed transparent glass conforming to ASTM C1036. Flat glass must be laminated together with a minimum of 0.030 inchthick, clear polyvinyl butyral interlayer with a total nominal thickness of 1/4 inch.

SECTION 08 81 00 Page 4

2.2.2 Mirrors

2.2.2.1 Glass Mirrors

Glass for mirrors must be Type I transparent flat type, Class 1-clear, Glazing Quality q1 1/4 inch thick conforming to ASTM C1036. Glass must be coated on one surface with silver coating, copper protective coating, and mirror backing paint. Silver coating must be highly adhesive pure silver coating of a thickness which must provide reflectivity of 83 percent or more of incident light when viewed through 1/4 inch thick glass, and must be free of pinholes or other defects. Copper protective coating must be pure bright reflective copper, homogeneous without sludge, pinholes or other defects, and must be of proper thickness to prevent "adhesion pull" by mirror backing paint. Mirror backing paint must consist of two coats of special scratch and abrasion-resistant paint , and must be baked in uniform thickness to provide a protection for silver and copper coatings which will permit normal cutting and edge fabrication.

2.2.3 Tempered Glass

ASTM C1048, Kind FT (fully tempered), Condition A (uncoated), Type I, Class 1 (transparent) , Quality q3, Thickness as required to meet ATFP requirements in 01 35 13, 85 percent light transmittance, 30. Color must be bronze . , and wherever safety glazing material is indicated or specified.

2.2.4 Heat-Strengthened Glass

ASTM C1048, Kind HS (heat strengthened), Condition A (uncoated), Type I, Class 2 (tinted heat absorbing), Quality q3, 3/8 inch thick.

2.3 INSULATING GLASS UNITS

Two panes of glass separated by a dehydrated 1/2 inch airspace, filled with argon gas, and hermetically sealed. Non-residential glazed systems (including frames and glass) must be certified by the National Fenestration Rating Council with a whole-window Solar Heat Gain Coefficient (SHGC) maximum of ..58 determined according to NFRC 200 procedures and a U-factor maximum of .42 BTU/hr-ft2-F in accordance with NFRC 100. Glazing must meet or exceed a luminous efficacy of 1.0. Glazed panels must be rated for not less than 35 Sound Transmission Class (STC) when tested for laboratory sound transmission loss according to ASTM E90 and determined by ASTM E413. Dimensional tolerances must be as specified in IGMA TB-1200 . Spacer must be black, roll-formed, steel-reinforced butyl rubber , with bent or tightly welded or keyed and sealed joints to completely seal the spacer periphery and eliminate moisture and hydrocarbon vapor transmission into airspace through the corners. Primary seal must be compressed polyisobutylene and the secondary seal must be a specially formulated silicone.

Two panes of glass separated by a dehydrated airspace and hermetically sealed. Dimensional tolerances must be as specified in IGMA TB-1200 .

Spacer must be roll-formed, with bent or tightly welded or keyed and sealed joints to completely seal the spacer periphery and eliminate moisture and hydrocarbon vapor transmission into airspace through the corners. Primary seal must be compressed polyisobutylene and the secondary seal must be a specially formulated silicone.

SECTION 08 81 00 Page 5

2.3.1 Buildings

Two panes of glass separated by a dehydrated airspace, filled with argon gas and hermetically sealed.

Insulated glass units must have a Solar Heat Gain Coefficient (SHGC) maximum of .40and a U-factor maximum of .42 BTU per square foot by hr by degree F.

Glazing must meet or exceed a luminous efficacy of 1.0. Glazed panels must be rated for not less than 35 Sound Transmission Class (STC) when tested for laboratory sound transmission loss according to ASTM E90 and determined by

ASTM E413.

Dimensional tolerances must be as specified in IGMA TB-1200 . Spacer must be black, roll-formed, steel-reinforced butyl rubber , with bent or tightly welded or keyed and sealed joints to completely seal the spacer periphery and eliminate moisture and hydrocarbon vapor transmission into airspace through the corners. Primary seal must be compressed polyisobutylene and the secondary seal must be a specially formulated silicone.

The inner light must be ASTM C1048, Grade B (fully tempered), Style I (uncoated), Type I, Class 1 (transparent), Quality q4, 1/4 inch thick laminated glass refer to paragraph above . The outer light must be ASTM C1048, Grade B (fully tempered), Style I (uncoated), Type I, Class 2 (tinted heat absorbing) solar-reflective, Quality q4, 1/4 inch thick] heat strengthened glass 2 (solar-reflective) see paragraph above . Glass thickness must meet the requirements set forth in the ATFP report attached to section 01 35 13.

2.3.2 Low Emissivity Insulating Glass

Interior and exterior glass panes for Low-E insulating units must be Type I annealed flat glass, Class 2-tinted with anti-reflective low-emissivity coating on No. 2 surface (inside surface of exterior pane), Quality q3 -glazing select, conforming to ASTM C1036. Glass performance must be U value maximum of .42 BTU/hr-ft2-F, Solar Heat Gain Coefficient (SHGC) maximum of .40. Color must be bronze.

2.4 SETTING AND SEALING MATERIALS

Provide as specified in the GANA Glazing Manual , IGMA TM-3000 , IGMA TB-3001 , and manufacturer's recommendations, unless specified otherwise herein. Do not use metal sash putty, nonskinning compounds, nonresilient preformed sealers, or impregnated preformed gaskets. Materials exposed to view and unpainted must be gray or neutral color.

2.4.1 Sealants

Provide elastomeric sealants.

2.4.1.1 Elastomeric Sealant

ASTM C920, Type S, Grade NS, Class 12.5, Use G. Use for channel or stop glazing metal sash. Sealant must be chemically compatible with setting blocks, edge blocks, and sealing tapes, with sealants used in manufacture of insulating glass units . Color of sealant must be white.

SECTION 08 81 00 Page 6

2.4.2 Preformed Channels

Neoprene, vinyl, or rubber, as recommended by the glass manufacturer for the particular condition.

2.4.3 Glazing Gaskets

Glazing gaskets must be extruded with continuous integral locking projection designed to engage into metal glass holding members to provide a watertight seal during dynamic loading, building movements and thermal movements. Glazing gaskets for a single glazed opening must be continuous one-piece units with factory-fabricated injection-molded corners free of flashing and burrs. Glazing gaskets must be in lengths or units recommended by manufacturer to ensure against pull-back at corners.

Provide glazing gasket profiles as recommended by the manufacturer for the intended application.

2.4.3.1 Aluminum Framing Glazing Gaskets

Glazing gaskets for aluminum framing must be permanent, elastic, non-shrinking, non-migrating, watertight and weathertight.

2.4.4 Accessories

Provide as required for a complete installation, including glazing points, clips, shims, angles, beads, and spacer strips. Provide noncorroding metal accessories. Provide primer-sealers and cleaners as recommended by the glass and sealant manufacturers.

2.5 MIRROR ACCESSORIES

2.5.1 Mastic

Mastic for setting mirrors must be a polymer type mirror mastic resistant to water, shock, cracking, vibration and…