089523-B500D-26 April 2012.doc

ATTACHMENT 1

FA4626-12-R-0007

Repair Entrance Windows Bldg 500

PROJECT NZAS 09-1048

MALMSTROM AIR FORCE BASE 26 April 2012

DIVISION 8 – DOORS AND WINDOWS

SECTION 089523 - FIBERGLASS-SANDWICH-PANEL ASSEMBLIES

This Section uses the term "Architect." Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

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

1.2 SUMMARY

A. This Section includes assemblies incorporating fiberglass sandwich panels and aluminum frame systems as follows:

Adjust list below to suit Project.

1. Wall assemblies.

B. Related Sections include the following:

List below only products and construction that the reader might expect to find in this Section but are specified elsewhere.

Delete subparagraph below if not applicable; revise if separate support system is specified in another Section.

Before specifying field-installed insulation materials, see "Energy Considerations" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies."

1. Division 7 Section "Joint Sealants" for sealants installed at perimeters of assemblies.

1.3 PERFORMANCE REQUIREMENTS

A. Provide assemblies, including anchorage, capable of withstanding, without failure, the effects of the following:

1. Structural loads.

2. Thermal movements.

3. Movements of supporting structure.

Specify dimensional tolerances for support system and adjacent construction in other Sections of this Project's Specifications.

4. Dimensional tolerances of building frame and other adjacent construction.

B. Failure includes the following:

1. Deflection exceeding specified limits.

2. Water leakage.

3. Thermal stresses transferred to building structure.

4. Noise or vibration created by wind and thermal and structural movements.

5. Loosening or weakening of fasteners, attachments, and other components.

6. Delamination of fiberglass-sandwich-panel faces from panel cores.

C. Structural Loads:

Show structural design data determined by Project's structural engineer on Drawings or insert requirements in applicable subparagraphs below. Verify requirements of authorities having jurisdiction. See "Design Loads, General" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies."

1. Wind Loads: 54 psf.

Model codes require sloped assemblies to resist snow loads or roof live loads, whichever are greater.

2. Snow Loads: 30 psf.

Retain subparagraph above and first subparagraph below for overhead assemblies such as roofs and skylights. Concentrated live loads usually represent weight of personnel performing maintenance on overhead assemblies or adjacent roof areas. Overhead assemblies that cannot support concentrated live loads may require protective screens or covers; see "Protection" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies."

Indicate code that must be used to calculate load combinations on Drawings or insert requirements in subparagraph below.

Delete first paragraph below if not required.

D. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

Differential values below (for aluminum in particular) are suitable for most of the U.S. Revise to suit local conditions and metal color and finish.

1. Temperature Change (Range): 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces.

1.4 PERFORMANCE TESTING

A. Provide assemblies that comply with test-performance requirements indicated, as evidenced by reports of tests performed on manufacturer's standard assemblies testing

Four subparagraphs and associated subparagraphs below describe Project-specific preconstruction-testing requirements; delete if selecting first option in paragraph above; retain if selecting second option.

Indicate size and other details of laboratory mockups on Drawings or by inserts.

Delete first subparagraph below if not required.

Before retaining testing requirements in remainder of this Article, see "Testing, General" and "Preconstruction Testing" articles in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies." Manufacturers test their standard assemblies differently, and testing for vertical assemblies may vary from overhead assemblies.

B. Air-Infiltration Test: ASTM E 283.

ASTM E 283 requires using a static-air-pressure difference of 1.57 lbf/sq. ft. (75 Pa), unless otherwise indicated, which is equivalent to a 25-mph (40-km/h) wind. Static-air-pressure difference of 6.24 lbf/sq. ft. (300 Pa) is equivalent to a 50-mph (80-km/h) wind.

C. Test for Water Penetration under Static Pressure: ASTM E 331.

Static-air-pressure difference of 20 percent of wind-load design pressure is appropriate in most parts of the U.S.; various AAMA publications include this recommendation. Locations where high winds and heavy rains frequently occur simultaneously may require higher test-pressure differences. Lower test-pressure differences are acceptable for some locations. Revise first subparagraph below to suit Project.

1. Minimum Static-Air-Pressure Difference: 20 percent of positive wind-load design pressure, but not less than 10 lbf/sq. ft. (479 Pa).

2. Water Leakage: None.

Test method in paragraph and subparagraphs above is most frequently specified. Test method in paragraph and subparagraphs below is generally more expensive than static method. Both static and dynamic testing may be required or desired for certain designs.

D. Test for Water Penetration under Dynamic Pressure: AAMA 501.1.

1. Dynamic Pressure: 20 percent of positive wind-load design pressure, but not less than 15 lbf/sq. ft. (718 Pa).

AAMA 501.1's definition of water leakage allows up to 1/2 oz. (15 mL) of water to accumulate on an interior stop or stool integral to system in a 15-minute period.

2. Water Leakage: No uncontrolled water penetrating systems or appearing on systems' normally exposed interior surfaces from sources other than condensation. Water controlled by flashing and gutters that is drained to exterior and cannot damage adjacent materials or finishes is not considered water leakage.

Paragraph and subparagraph below are appropriate for overhead assemblies but may be unnecessary if products are tested using static- and dynamic-pressure tests for water penetration. Consult manufacturers for guidance.

E. Water-Penetration, Wind-Driven-Rain Test: Wind-driven-rain test in ICBO ES AC07, "Special Roofing Systems."

1. Water Leakage: None.

If Project-specific preconstruction testing for effects of thermal movement is necessary, insert requirements for testing according to AAMA 501.5. Standard systems are usually not tested; instead manufacturers often rely on calculations and in-service performance of standard details to verify thermal-movement capabilities.

In hurricane-prone areas, authorities having jurisdiction may require debris-impact and cyclic-pressure testing for assemblies. If required, insert testing requirements for windborne-debris impact resistance. See the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies" and verify requirements of authorities having jurisdiction.

1.5 SUBMITTALS

A. High-light all descriptive literature to accomplish identification of specific components/items which are proposed to be furnished. Government will not react to descriptive material/literature which has not been high-lighted, except to reject the Submittal.

B. Product Data: Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for assemblies.

C. Shop Drawings: For assemblies. Include plans, elevations, sections, details, and attachments to other work.

Retain subparagraph below if Architect either has delegated design responsibility to Contractor or wants to review structural data as another way to verify product's compliance with assembly-performance requirements. Professional engineer qualifications are specified in Division 1 Section "Quality Requirements."

1. Include structural analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

D. Samples for Initial Selection: For units with factory-applied color finishes.

Delete paragraph above if colors are preselected and specified or scheduled. Retain paragraph below with or without above.

E. Samples for Verification: For each type of exposed finish required, in manufacturer's standard sizes.

Retain paragraph and subparagraphs below to verify details of assembly. In lieu of a fabrication sample, consider inserting a provision that an isometric drawing included in Shop Drawings is acceptable.

F. Fabrication Sample: Of each frame system intersection of assemblies, made from 12-inch (300-mm) lengths of full-size components and showing details of the following:

Revise list below to suit Project.

1. Joinery.

2. Anchorage.

3. Expansion provisions.

4. Fiberglass sandwich panels.

5. Flashing and drainage.

Retain paragraph below if Contractor is responsible for field quality-control testing.

G. Field quality-control test reports.

Retain paragraph below if reports of tests performed on manufacturer's standard assemblies are required in "Performance Testing" Article.

H. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for assemblies.

Retain first two paragraphs below if Project-specific preconstruction testing is required in "Performance Testing" Article as Contractor's responsibility.

I. Preconstruction Testing Program: For assemblies, developed specifically for Project. Include plans, elevations, sections, and details of laboratory mockup.

J. Preconstruction Test Reports: For assemblies.

K. Maintenance Data: For assemblies to include in maintenance manuals.

L. Warranties: Special warranties specified in this Section.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: Entity capable of assuming engineering responsibility, including preparation of Shop Drawings, and performing work of this Section and who is acceptable to manufacturer.

See "Fiberglass Sandwich Panels" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies" for a discussion of ICBO ES AC04.

B. Manufacturer Qualifications: For fiberglass sandwich panels, a qualified manufacturer whose facilities, processes, and products are monitored by an independent, accredited quality-control agency for compliance with applicable requirements in ICBO ES AC04, "Sandwich Panels."

Retain first paragraph below if Contractor selects testing agency specified in Part 1 "Performance Testing" Article or Part 3 "Field Quality Control" Article.

C. Product Options: Information on Drawings and in Specifications establishes requirements for assemblies' aesthetic effects and performance characteristics. Aesthetic effects are indicated by dimensions, arrangements, alignment, and profiles of components and assemblies as they relate to sightlines, to one another, and to adjoining construction. Performance characteristics are indicated by criteria subject to verification by one or more methods including testing conducted by an independent testing agency and in-service performance.

Retain subparagraph below or revise to suit Project.

1. Do not modify intended aesthetic effects, as judged solely by Contracting Officer, except with Contracting Officer's approval. If modifications are proposed, submit comprehensive explanatory data to Contracting Officer for review.

D. Fire-Test-Response Characteristics: Where fire-test-response characteristics are indicated for assemblies and components, provide products identical to those tested per test method indicated by an independent testing and inspecting agency acceptable to authorities having jurisdiction.

Delete first paragraph below if no welding.

E. NFRC Certification: Provide fiberglass sandwich panels that are certified for U-factors indicated according to NFRC 100 and listed in its "National Fenestration Council Incorporated - Certified Products Directory."

Delete paragraph and subparagraphs below if not required. If retaining, indicate location, size, and other details of mockups on Drawings or by inserts. Revise wording if only one mockup is required.

Delete paragraph below if Work of this Section is not extensive or complex enough to justify a preinstallation conference. If retaining, coordinate with Division 1.

1.7 PROJECT CONDITIONS

A. Field Measurements: Indicate measurements on Shop Drawings.

1.8 WARRANTY

When warranties are required, verify with Owner's counsel that special warranties stated in this Article are not less than remedies available to Owner under prevailing local laws. Coordinate with Division 1 Section "Product Requirements."

A. Special Assembly Warranty: Manufacturer's standard form in which manufacturer and Installer agree to repair or replace components of assemblies that fail in materials or workmanship within specified warranty period.

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

a. Structural failures including, but not limited to, excessive deflection.

Delete option in first subparagraph below if retaining "Special Aluminum-Finish Warranty" Paragraph.

b. Deterioration of metals, metal finishes, and other materials beyond normal weathering.

c. Water leakage.

Verify available warranties for assemblies and insert number below.

2. Warranty Period: Five years from date of Substantial Completion.

B. Special Fiberglass-Sandwich-Panel Warranty: Manufacturer's standard form in which manufacturer agrees to replace panels that exhibit defects in materials or workmanship.

1. Defects include, but are not limited to, the following:

a. Fiberbloom.

b. Delamination of coating, if any, from exterior face sheet.

c. Discoloration of exterior face sheet of more than 8.0 units Delta E when measured according ASTM D 2244.

d. Delamination of panel face sheets from panel cores.

Verify available warranties for panels and insert number below.

2. Warranty Period: 10 years from date of Substantial Completion.

C. Special Aluminum-Finish Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components on which finishes fail within specified warranty period. Warranty does not include normal weathering.

1. Failures include, but are not limited to, checking, crazing, peeling, chalking, and fading of finishes.

Verify available warranties for finishes and insert number below.

2. Warranty Period: Five years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

See Editing Instruction No. 1 in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies" for cautions about naming manufacturers and products.

Retain above for nonproprietary or below for semiproprietary specification, or delete both for basis-of-design specification. Refer to Division 1 Section "Product Requirements."

A. Manufacturers: Subject to compliance with requirements. Provide products by one of the following or an equal approved by Contracting Officer:

1. Kalwall Corporation. (Basis of Design)

2. Major Industries, Inc

3. Skywall Translucent Systems; Vistawall Group (The).

4. Structures Unlimited, Inc.

5. Or approved equal.

2.2 ALUMINUM FRAME SYSTEMS

A. Aluminum: Alloy and temper recommended in writing by manufacturer for type of use and finish indicated.

1. Sheet and Plate: ASTM B 209 (ASTM B 209M).

2. Extruded Bars, Rods, Profiles, and Tubes: ASTM B 221 (ASTM B 221M).

3. Extruded Structural Pipe and Tubes: ASTM B 429.

B. Components: Manufacturer's standard extruded-aluminum members of thickness required and reinforced as required to support imposed loads.

Kalwall's assemblies are supported by the panels themselves; aluminum components are battens that connect panels and act as closures. Other manufacturers use aluminum framing to support panels.

Thermally broken construction may not significantly affect environmental performance of assemblies; see "Energy Considerations" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies" and consult manufacturers for guidance. If both one-piece and thermally broken members are required for Project, insert requirements in subparagraph below and indicate locations of each on Drawings.

1. Construction: Thermally broken; framing members are composite assemblies of two separate extruded-aluminum components permanently bonded by a material of low thermal conductance.

C. Exposed Flashing and Closures: Manufacturer's standard aluminum components not less than 0.060 inch (1.524 mm) thick.

D. Frame-System Gaskets: Manufacturer's standard.

Retain first option in first paragraph below for manufacturer's standard assemblies. For custom assemblies, retain second option and specify sealants for framing systems in Division 7 Section "Joint Sealants."

E. Frame-System Sealants: As recommended in writing by manufacturer.

Retain subparagraph below if low-emitting materials are required for LEED-NC or LEED-CI Credit EQ 4.1. VOC limit is that for architectural sealants.

1. Provide sealants for use inside of the weatherproofing system that have a VOC content of 250 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24).

F. Anchors, Fasteners, and Accessories: Manufacturer's standard, corrosion-resistant, nonstaining, and nonbleeding; compatible with adjacent materials.

1. At closures, retaining caps, or battens, use ASTM A 193/A 193M, 300 series stainless-steel screws.

2. Where fasteners are subject to loosening or turning out from thermal and structural movements, wind loads, or vibration, use self-locking devices.

3. At movement joints, use slip-joint linings, spacers, and sleeves of material and type recommended in writing by manufacturer.

Delete paragraph below if not applicable or revise to suit Project.

G. Concrete and Masonry Inserts: Hot-dip galvanized cast-iron, malleable-iron, or steel inserts complying with ASTM A 123/A 123M or ASTM A 153/A 153M requirements.

Retain first paragraph below for fastening to wood curbs. If anchor bolts are required, coordinate locations.

H. Anchor Bolts: ASTM A 307, Grade A (ASTM F 568M, Property Class 4.6), hot-dip zinc coating, ASTM A 153/A 153M, Class C.

I. Frame System Fabrication:

1. Fabricate components before finishing.

2. Fabricate components that, when assembled, have the following characteristics:

a. Profiles that are sharp, straight, and free of defects or deformations.

b. Accurately fitted joints with ends coped or mitered.

c. Internal guttering systems or other means to drain water passing joints, condensation occurring within components, and moisture migrating within the assembly to exterior.

3. Fabricate sill closures with weep holes and for installation as continuous component.

4. Reinforce components as required to receive fastener threads.

Delete subparagraph below if no welding.

5. Weld components in concealed locations to greatest extent possible to minimize distortion or discoloration of finish. Remove weld spatter and welding oxides from exposed surfaces by descaling or grinding.

2.3 FIBERGLASS SANDWICH PANELS

A. Panel Construction: Assembly of uniformly colored, translucent, thermoset, fiberglass-reinforced-polymer face sheets bonded to both sides of a grid core and complying with requirements applicable to panel materials in ICBO ES AC04, "Sandwich Panels."

1. Face-Sheet, Self-Ignition Temperature: 650 deg F (343 deg C) or more per ASTM D 1929.

2. Face-Sheet Burning Extent: 1 inch (25 mm) or less per ASTM D 635.

3. Face-Sheet, Smoke-Developed Index: 450 or less per ASTM E 84.

Kalwall tests its panels for characteristics in subparagraph above and below according to UL 723, which was adopted for use by the Department of Defense and is similar to ASTM E 84. Both test methods are Steiner Tunnel tests; however, model codes do not include reference to UL 723. Revise subparagraph below if testing according to UL 723 is acceptable to authorities having jurisdiction.

4. Interior Face-Sheet, Flame-Spread Index: Not more than 25 per ASTM E 84.

Delete subparagraph below if not necessary; coordinate with Part 1 "Performance Requirements" Article and verify requirements of authorities having jurisdiction. See "Code Considerations" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies."

5. Roof-Covering Class: Class A per ASTM E 108 or UL 790.

Delete paragraph below if thickness is indicated on Drawings. Thickness indicated in second option is typically used only for unit skylights and short-span wall systems.

B. Panel Thickness: 4 inches at main structure and 2-3/4 inches (70 mm) at canopy structure.

Coordinate U-factor specified below with panel thickness and construction; thermally broken grid cores generally provide improved performance. Manufacturers' literature may indicate U-factors determined according to ASTM C 236, which was discontinued in 2001 and replaced by ASTM C 1363.

C. Panel U-Factor: Not more than 0.15 for 4” panel and 0.29 for 2 ¾” panel measured in Btu/sq. ft. x h x deg F (W/sq. m x K) according to NFRC 100 or ASTM C 1363 using procedures described in ASTM C 1199 and ASTM E 1423.

D. Panel Strength Characteristics:

Coordinate strength requirements with manufacturers selected; revise to suit Project.

1. Maximum Panel Deflection: 3-1/2 inches (89 mm) when a 4-by-12-foot (1.2-by-3.6-m) panel is tested according to ASTM E 72 at 34 lbf/ sq. ft. (1.6 kPa), with a maximum 0.090-inch (2.3-mm) set deflection after 5 minutes.

2. Panel Support Strength: Capable of supporting, without failure, a 300-lbf (1334 N) concentrated load when applied to a 3-inch- (76-mm-) diameter disk according to ASTM E 661.

If necessary to fully describe acceptable products, insert light and solar transmission characteristics here.

E. Grid Core: Mechanically interlocked extruded-aluminum I-beams, with a minimum flange width of 7/16 inch (11.1 mm).

1. Extruded Aluminum: ASTM B 221 (ASTM B 221M), in alloy and temper recommended in writing by manufacturer.

Kalwall and Major Industries offer thermally broken grid cores. If required for thermally broken I-beams, insert condensation-resistance factor according to AAMA 1503.

2. Grid Pattern: As indicated on Drawings.

F. Exterior Face Sheet:

1. Thickness: 0.070 inches (1.778 mm).

2. Color: Rose

3. Color Stability: Not more than 3.0 units Delta E when measured according to ASTM D 2244 after outdoor weathering in southern Florida according to procedures in ASTM D 1435 with panels mounted facing south and as follows:

Kalwall tests face sheets at 5 degrees from horizontal; Major Industries and Skywall test at 45 degrees.

a. Panel Mounting Angle: Horizontal.

b. Exposure Period: 60 months.

For erosion protection, Kalwall's face sheets have embedded glass erosion barriers; Major Industries and Skywall use surface-applied films. Kalwall's literature indicates that resistance of panel faces to fiberbloom is tested according to ASTM D 4060; literature of other manufacturers does not indicate testing.

4. Erosion Protection: Manufacturer's standard.

Revise subparagraph below if compliance with Florida Building Code test protocol is required.

5. Impact Resistance: No fracture or tear at impact of 60 ft. x lbf (81 J) by a 3-1/4-inch- (83-mm-) diameter, 5-lb (2.3-kg) free-falling ball according to test procedure in UL 972.

G. Interior Face Sheet:

1. Thickness: 0.060 inch (1.524 mm).

2. Color: White.

H. Fiberglass-Sandwich-Panel Adhesive: ASTM D 2559.

1. Compatible with facing and core materials.

2. Tensile and shear bond strength of aged adhesive ensures permanent adhesion of facings to cores, as evidenced by testing according to ASTM C 297 and ASTM D 1002 after accelerated aging procedures that comply with aging requirements for adhesives with high resistance to moisture in ICBO ES AC05, "Sandwich Panel Adhesives."

I. Panel Fabrication: Factory assemble and seal panels.

1. Laminate face sheets to grid core under a controlled process using heat and pressure to produce straight adhesive bonding lines that cover width of core members and that have sharp edges.

a. White spots indicating lack of bond at intersections of grid-core members are limited in number to 4 for every 40 sq. ft. (3.7 sq. m) of panel and limited in diameter to 3/64 inch (1.2 mm).

2. Fabricate with grid pattern that is symmetrical about centerlines of each panel.

3. Fabricate panel to allow condensation within panel to escape.

4. Reinforce panel corners.

2.4 ACCESSORY MATERIALS

Delete first paragraph below if no field-installed insulation. Before specifying field-installed insulation materials, see "Energy Considerations" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies."

A. Insulating Materials: Specified in Division 7 Section "Building Insulation."

B. Bituminous Paint: Cold-applied asphalt-mastic paint complying with SSPC-Paint 12 requirements except containing no asbestos, formulated for 30-mil (0.762-mm) thickness per coat.

2.5 ALUMINUM FINISHES

A. General: Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes.

B. Finish designations prefixed by AA comply with the system established by the Aluminum Association for designating aluminum finishes.

Retain finishes below to suit Project. If retaining more than one, indicate location of each on Drawings or by inserts. Revise mechanical finish if custom finish is required and availability is verified.

C. Class II, Clear Anodic Finish: AA-M12C22A31 (Mechanical Finish: nonspecular as fabricated; Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class II, clear coating 0.010 mm or thicker) complying with AAMA 611.

Above is standard finish with many manufacturers; below is heavy-anodized finish. Verify availability with manufacturers selected.

D. Class I, Clear Anodic Finish: AA-M12C22A41 (Mechanical Finish: nonspecular as fabricated; Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class I, clear coating 0.018 mm or thicker) complying with AAMA 611.

E. Class I, Color Anodic Finish: AA-M12C22A42/A44 (Mechanical Finish: nonspecular as fabricated; Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class I, integrally colored or electrolytically deposited color coating 0.018 mm or thicker) complying with AAMA 611.

Retain one color below with paragraph above.

1. Color: Dark bronze.

Options in subparagraph above are examples only and may vary in color range and availability among manufacturers. Retain one or delete all and retain one of two options in subparagraph below.

Paragraph below references AAMA standards for high-performance and superior performance organic coatings on extrusions and panels. Revise if specific products are required.

Delete paragraph above or below; if both are required, indicate location of each system on Drawings, in schedules, or by inserts. Some manufacturer's standard fluoropolymer finishes contain 50 percent polyvinylidene fluoride resin by weight; if these finishes are acceptable, edit requirements to suit Project.

Paragraph below references AAMA standard for superior performance organic coating on extrusions and panels. Revise if specific products are required.

For exact finish, insert names of coating manufacturers and products.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of work.

1. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. General:

1. Comply with manufacturer's written instructions.

2. Do not install damaged components.

3. Fit joints between aluminum components to produce hairline joints free of burrs and distortion.

4. Rigidly secure nonmovement joints.

5. Install anchors with separators and isolators to prevent metal corrosion and electrolytic deterioration and to prevent impeding movement of moving joints.

Delete first subparagraph below if no field welding.

6. Weld aluminum components in concealed locations to minimize distortion or discoloration of finish. Protect glazing surfaces from welding.

7. Seal joints watertight, unless otherwise indicated.

B. Metal Protection: Where aluminum components will contact dissimilar materials, protect against galvanic action by painting contact surfaces with bituminous paint or by installing nonconductive spacers as recommended in writing by manufacturer for this purpose.

C. Install continuous aluminum sill closure with weatherproof expansion joints and locked and sealed or welded corners. Locate weep holes at rafters.

D. Install components to drain water passing joints, condensation occurring within aluminum members and panels, and moisture migrating within assembly to exterior.

E. Install components plumb and true in alignment with established lines and elevations.

Delete first paragraph below if no field-installed insulation. Before specifying field-installed insulation materials, see "Energy Considerations" Article in the Evaluations in Division 8 Section "Translucent Wall and Roof Assemblies."

F. Install insulation materials as specified in Division 7 Section "Building Insulation."

G. Erection Tolerances: Install assemblies to comply with the following maximum tolerances:

Erection tolerances in two subparagraphs below are examples only that are based on manufacturers' literature. Coordinate with tolerances for support systems and revise to suit Project.

1. Alignment: Limit offset from true alignment to 1/32 inch (0.8 mm) where surfaces abut in line, edge to edge, at corners, or where a reveal or protruding element separates aligned surfaces by less than 3 inches (76 mm); otherwise, limit offset to 1/8 inch (3.2 mm).

2. Location and Plane: Limit variation from true location and plane to 1/8 inch in 12 feet (3.2 mm in 3.7 m); 1/2 inch (13 mm) over total length.

3.3 FIELD QUALITY CONTROL

Retain first option in paragraph below if Owner engages agency; retain second option if Contractor engages agency. If retaining second option, retain requirement for field quality-control test reports in Part 1 "Submittals" Article.

Indicate testing stages on Drawings.

A. Testing Services: Testing and inspecting of representative areas to determine compliance of installed assemblies with specified requirements shall take place as follows and in successive stages as indicated on Drawings. Do not proceed with installation of the next area until test results for previously completed areas show compliance with requirements.

If retaining subparagraph and associated subparagraphs below, verify with qualified testing agencies that Project conditions will allow satisfactory static-pressure field testing. A system's installed performance is generally less than its laboratory performance. Indicate test locations on Drawings.

1. Water Penetration under Static Pressure: Before installation of interior finishes has begun, areas shall be tested according to ASTM E 1105.

a. Test Procedures: Test under uniform static air pressure.

Coordinate static-pressure, field-test performance requirements below with static-pressure, laboratory-test performance requirements specified in Part 1 "Performance Testing" Article. Generally, 0.67 times the pressure specified for laboratory testing according to ASTM E 331 is a realistic criterion.

b. Water Penetration: None.

Generally retain inexpensive test in subparagraph below to check assemblies' resistance to water penetration. Insert test area requirements to suit Project.

2. Water-Spray Test: Before installation of interior finishes has begun, assemblies shall be tested according to AAMA 501.2 and shall not evidence water penetration.

B. Repair or remove work where test results and inspections indicate that it does not comply with specified requirements.

C. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements.

END OF SECTION 089523

FIBERGLASS-SANDWICH-PANEL ASSEMBLIES

089523 - 5