MPS Master
SECTION 08 45 11
INSULATED TRANSLUCENT WALL ASSEMBLIES
PART 1 - GENERAL
1.01 SUMMARY
A.Section Includes:
1.Provide translucent wall assemblies consisting of factory fabricated insulated translucent composite panels (sandwich panels) in aluminum framing systems.
2.Provide continuous aluminum subsill flashing beneath sills of panel assemblies.
3.Provide continuous extruded aluminum or “break metal” aluminum sill at bottom of each translucent wall assembly.
4.Provide sealants and related accessory materials required within assemblies and at exterior and interior faces for installation of translucent wall assemblies for weathertight installations, including at aluminum sills.
5.Provide fasteners and anchors required by translucent wall assemblies for secure installations.
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1.02 SYSTEM DESCRIPTION
A.General Requirements:
1.Translucent wall assemblies consist of translucent glass fiber reinforced thermoset resin face sheets permanently bonded on each face of a grid core of interlocked structural aluminum/composite I-beams, with translucent fiberglass batts filling entire void space within panels forming insulated composite panels (Sandwich Panels), installed in an aluminum framing system.
2.Assembly manufacturer shall be responsible for complete design, configuration, and fabrication of system.
B.Design Requirements:
1.Wind Resistance: Design translucent wall assemblies to withstand 20psf wind load.
2.Fire Resistance: Panels shall withstand a 1,200 degree F fire for not less than 1hour without collapse or exterior flaming.
1.03 SUBMITTALS
A.General Requirements: Provide submittals in accordance with Section 013300.
B.Shop Drawings: Indicate products being provided and their installation.
C.Samples: If requested by Architect submit the following for review and approval:
1.Samples of Translucent Exterior and Interior Facing Sheets
2.Finish of Aluminum Members
3.Typical Fabricated Composite Panel
4.Submit 2 sets of sealant manufacturer's color samples for selection of colors for each type of sealant that will be exposed.
D.Documentation:
1.Submit current UL listing documentation that panel face sheets are manufactured by translucent panel manufacturer.
2.Submit documentation of regular independent quality control monitoring under a building code review and listing program.
E.Test Report Submittals: Submit certified test reports made by an independent testing organization for specified translucent panel(s). Reports shall verify that material complies with performance requirements specified. Previously completed test reports are acceptable if they are current and are indicative of products intended to be provided for this Project. Test reports required are:
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1.Flame Spread and Smoke Development (ASTM E84)
2.Burn Extent (ASTM D635)
3.Color Stability (ASTM D2244)
4.Impact Strength (SPI Method)
5.Tensile Bond Strength (ASTM C297 After Aging by ASTM D1037) (ASTM D1002)
6.Accelerated Aging (ASTM D1037)
7.Insulated “U” Factor (NFRC 100) Panel and System
8.Erosion Resistance (ASTM D4060)
9.Beam Bending Strength (ASTM E72)
10.Condensation Resistance Factor (AAMA 1503)
F.Quality Control Submittals: Submit proof that required quality control inspections and testing have been conducted.
1.04 QUALITY ASSURANCE
A.Regulatory Requirements: Translucent wall assembly panels shall have been evaluated by ICCES which has issued an evaluation report (ICC-ES Legacy Report) indicating compliance with governing code requirements. Such evaluation report shall be acceptable to code authority having jurisdiction.
1.Panels shall be identified with manufacturer’s name, panel type designation, material classification, and ICC-ES evaluation report number stamped on panel perimeter.
B.Manufacturer Qualifications: A company continuously and regularly employed in the manufacture of specified products, for not less than the last 10consecutive years, and which can show evidence of these products being satisfactorily used on not less than (6)projects of similar size, scope, and type within such a period. At least (3) of the identified projects shall have been in successful use for 10years or longer.
C.Installer Qualifications: A firm which has been in the business of installing products similar to those specified, for not less than the last 10 consecutive years, which can show evidence of satisfactory completion of projects of similar size, scope, and type, and which is certified by wall assembly manufacturer to install their products.
1.05 DELIVERY, STORAGE, AND HANDLING
A.Delivery: Protect factory assembled translucent wall panels and aluminum perimeter frame members from damage.
B.Storage and Protection: Store panels on long edge, several inches above ground or floor, under protective cover, and blocked to prevent warping.
1.06 SITE CONDITIONS
A.Field Measurements:
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SECTION 08 45 11
1.Check actual openings by accurate field measurement before fabrication. Show recorded measurements on final Shop Drawings.
2.Coordinate fabrication schedule with construction progress to avoid delay of work.
B.Environmental Requirements for Application of Sealant:
1.Meet requirements of sealant manufacturer's recommendations for maximum and minimum application temperatures and humidity.
2.Do not apply sealant when temperature is below 40degreesF unless approved by Architect.
1.07 WARRANTY
A.Insulated Translucent Wall Assembly Manufacturers Warranty:
1.Provide a written warranty, executed by manufacturer, agreeing to repair or replace defective materials and workmanship of insulated translucent wall assembly for a period of 10 years from the date of Substantial Completion, without cost to Owner.
2."Defective" shall be defined as abnormal deterioration, aging, weathering, delamination, fiber bloom, or discoloration of components which make up the assembly; and failure of the assembly to meet performance requirements, including structural, water migration and air infiltration.
B.Insulated Translucent Wall Assembly Installers Warranty:
1.Installer to provide a written 10year warranty, commencing on the date of Substantial Completion, against moisture migration into the interior of the building which is attributed to the Work specified within this Section. Installer shall agree to repair or replace defective materials and workmanship, at no cost to Owner, that relates to moisture migration.
PART 2 - PRODUCTS
2.01 MANUFACTURERS
A.Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
1.Major Industries, Inc., Wausau, WI
2.02 MATERIALS
A.Translucent Facing Sheets:
1.Manufactured from glass fiber reinforced thermoset resins, by translucent wall assembly system manufacturer, specially for architectural use.
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2.Flammability of Interior Face Sheet: Interior face sheet shall have a flame spread rating no greater than 50 and smoke development no greater than 250 when tested in accordance with ASTME84. Burn extent when tested in accordance with ASTMD635 shall be no greater than 1inch. Face sheets shall not deform, deflect or drip when subjected to fire or flame or shall not become detached when subjected to 300degreesF for 1hour.
3.Weatherability:
a.Color Stability: Full thickness of exterior face material shall not change color more than 3.0Hunter or CIE Units (DELTAE by ASTMD2244) after 5years of outdoor weathering in South Florida at 7degrees facing south, determined by the average of at least (3)white samples, without a protective film or coating to ensure maximum long term color stability.
b.Exterior face sheet shall have a permanent glass veil erosion barrier to provide maximum long term resistance to reinforcing glass fiber exposure. Warrant face sheets for not less than 25years against exposure of glass fiber reinforcing.
4.Face Sheet Appearance:
a.General Appearance: Provide face sheets completely free of ridges and wrinkles which prevent proper surface contact for bonding to grid core members. Clusters of air bubbles and pinholes which collect moisture and dirt are not acceptable.
b.Color Uniformity: Uniform in color to prevent splotchy appearance.
c.Exterior Face Sheet Requirements: Smooth surface, 0.070inches thick, crystal color.
1)Color to be select by Architect from manufacturer’s colors.
d.Interior Face Sheet Requirements: Smooth, 0.045inches thick, white or crystal color as shown on Drawings.
5.Face Sheet Thickness Tolerance: Not more than plus or minus 10percent.
6.Face Sheet Impact Resistance: Uniform in strength and impact resistant as follows when tested in accordance with SPI Shatter Resistance Test, Method B. Fractures or tears are not acceptable when impacted by a 3 1/2inch diameter, 6.37pound freefalling ball.
a.Exterior Fact Sheet: Standard impact resistant, 70foot pounds.
b.Interior Face Sheet: Extra high impact resistant, 230foot pounds.
c.Interior Face Sheet: Standard impact resistant, 70 foot pounds.
B.Panel Core Grid Members:
1.I-Beams:
a.Thermally broken aluminum/composite members, in an I-beam shape, having provisions for mechanical interlocking between muntin and mullion members within panels and to panel perimeter members where specified.
b.Machine members to provide flush surfaces between members at intersections, to provide full bonding with face sheets.
2.Machine aluminum Ibeam grid members to tolerances not greater than plus or minus 0.002inch.
3.Width of IBeam Grid Members at Bond Line to Face Sheets: Not less than 7/16inch.
C.Panel Insulation: Translucent wall assembly manufacturer’s standard translucent fiberglass batts.
D.Laminating Adhesive:
1.Heat and pressure resin-type adhesive engineered for structural sandwich panel use.
2.Adhesive shall comply with requirements of the “ICC-ES Interim Criteria for Sandwich Panel Adhesive”.
3.Adhesive Performance Requirements:
a.Tensile Strength: Not less than 750 psi tensile strength, when tested in accordance with ASTMC297, after (2)exposures of (6)cycles each of the aging conditions prescribed in ASTMD1037.
b.Shear Strength: Average, after (5) prescribed exposures of the following, in accordance with ASTM D1002:
1)50 Percent Relative Humidity at 73 Degrees F: 540 psi
2)Accelerated Aging by ASTM D1183: 700 psi
3)182 Degrees F: 60 psi
4)Full Cycle Soak: 715 psi
5)500 Hour Oxygen Bomb: 1,400 psi
E.Closure Framing System - Perimeter and Battens:
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1.System Description: Aluminum framing members which are screw activated to provide clamp-tite sealed closure of framing system to composite panels.
a.Provide 2 1/2-inch deep framing member at head of each assembly.
2.Screw Fasteners For Closure System: Provide 300 Series stainless steel screws, factory sealed to panels.
3.Finish of Aluminum Components: Aluminum Association (AA), Architectural ClassI, clear anodic finish coating not less than 0.018mm thickness, designation AAM12C22A41, in accordance with AAMA 611.
4.Finish of Aluminum Components: Aluminum Association (AA), Architectural ClassI, champagne, light bronze, medium bronze, dark bronze color anodic finish coating not less than 0.018mm thickness, designation AAM12C22A42/A44, in accordance with AAMA 611.
F.Flexible Sealing Tape: Factory apply panel manufacturer=s standard tape to closure system under controlled conditions.
2.03 CAULKING MATERIALS
A.One-Component Polyurethane Sealant:
1.Applicable Standards: A one-component sealant in accordance with ASTM C920, TypeS, GradeNS, Class 25, Use NT, M, A, O.
2.Acceptable Manufacturers: Subject to compliance with requirements of the Contract Documents, acceptable manufacturers are as follows or Owner approved equal:
a.Bostik, "Chem-Calk 900"
b.Pecora Corporation, "Dynatrol 1-XL"
c.Sika Corporation, "Sikaflex-1a"
d.SonnebornBuilding Products, Division of BASFBuilding Systems, "NP 1"
e.Tremco, Inc., Sealant/Weatherproofing Division, "Dymonic" or "Vulkem 116"
3.Colors of Sealant: Architect will select colors of each sealant that will be exposed and has the option to select from products of as many acceptable manufacturers as required to obtain colors desired, or to obtain custom colors if they can be provided at no extra cost.
B.Sealant Related Accessory Materials:
1.Joint Cleaner, Joint Primer, Bond Breaker Tape, and/or Sealant Backer Rod (Sealant Back-Up) (Cylindrical Sealant Backings): As recommended by sealant manufacturer.
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MPS Master
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2.04 COMPOSITE PANEL CONSTRUCTION
A.Panel Description: Insulated translucent composite panels (sandwich panels) of flat glass fiber reinforced thermoset resin face sheets permanently bonded to a mechanically interlocked aluminum Ibeam grid core, using adhesive under a controlled process of heat and pressure, with translucent fiberglass batt insulation filling entire void spaces between face sheets.
1.Tape bond methods of attaching face sheets to grid core members are not acceptable.
2.Panel Thickness: 2 3/4inches.
B.Panel Performance Requirements:
1.“U” Factor of Panels: ______
2.Light Transmission: ______
3.Solar Heat Gain Coefficient: ______
4.Shading Coefficient: ______(1.15 times solar heat gain coefficient)
5.Condensation Resistance Factor (CRF): When tested in accordance with AAMA 1503.
a.Measured on Grid/Bond Line: Not less Than 80 CRF
b.Measured at Center of Grid Cells: Not Less Than 90 CRF
6.Panel Deflection: When tested in accordance with ASTME72 over a 12foot clear span, not more than 3 1/2inches with 35pounds per square foot uniform load and not more than 0.10 inch set deflection 5 minutes after load is removed.
C.Grid Pattern: Nominal 12inches by 24inches, Shoji pattern, symmetrical about horizontal and vertical center lines of each panel.
D.Grid Pattern: Nominal 12inches by 12inches, Tuckerman pattern, symmetrical about horizontal and vertical center lines of each panel.
2.05 ALUMINUM SILLS
A.General Requirements: Provide exterior aluminum sill and related continuous aluminum keeper at each translucent wall assembly.
B.Fabrication:
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MPS Master
SECTION 08 45 11
1.Aluminum sills shall be extruded, of same alloy and finish as perimeter closure framing system members, or not less than 0.125-inch break metal as dictated by size requirements.
2.Sills shall be 1-piece lengths if possible. Where sill length requires more than (1)sill section, provide concealed splice plate which is a minimum of 6inches wide. Seal between splice plate and underside of sill with continuous beads of sealant.
3.Provide end caps at each end of sill to provide surface to caulk against.
4.Provide concealed method of secure anchorage for sills and trim.
PART 3 - EXECUTION
3.01 PREPARATION
A.Preparation of Opening: Prepare openings and provide protection between translucent wall assembly aluminum components and dissimilar materials which may cause damage by electrolysis.
3.02 INSTALLATION
A.General Requirements:
1.Erect wall panel system in accordance with panel manufacturer’s recommendations.
2.Fasten and seal components in accordance with translucent wall assembly manufacturer=s recommendations and approved Shop Drawings.
3.Clean aluminum surfaces before applying sealant.
B.Installation of Aluminum Sills:
1.Install aluminum sills with a positive slope toward the exterior face of the wall and support and secure sill from beneath to ensure that positive slope will be maintained for the life of the installation.
2.Securely anchor sill in place using concealed method such as continuous hook strip.
3.Hold sill no less than 1/8inch and no more than 1/4inch away from wall construction at jambs and fill void solid with sealant. Provide end caps at ends of sill so sealant is not allowed to run beneath sill. Provide caulking backup if void is too deep to receive sealant. Provide a tooled, smooth, concave sealed joint which is well bonded to the adjacent wall construction and to the sill surface.
C.Protection:
1.Separating Dissimilar Metals:
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a.Provide protection against galvanic action wherever dissimilar metals are in contact with one another.
b.Protection shall be accomplished by using alkali resistant bituminous paint, plastic separator insulating tapes, or similar protective measures subject to Architect's approval.
c.Paint for shop coating and field touchup of steel connecting members, including anchors, clips, and other related components, shall be alkaliresistant bituminous paint.
2.Protecting Aluminum From Cementitious Materials:
a.Insulate aluminum parts that come in contact with masonry, lime mortar, concrete or plaster by painting aluminum surfaces in contact with a heavy bodied bituminous coating.
b.Back paint aluminum sills with bituminous paint.
3.03 APPLICATION OF SEALANT
A.Examination:
1.Verification of Conditions: Examine joints to be sealed for construction defects which would adversely affect execution of work.
2.Masonry and Concrete Curing: Ensure that masonry and concrete have cured a minimum of 28 days.
3.Correction of Deficiencies: Do not proceed with installation until unsatisfactory conditions are corrected.
B.Preparation:
1.Surface Preparation:
a.Prepare joints in accordance with manufacturer's recommendations.
b.Surface to receive sealants shall be clean, dry, and free from dust, particles, loose aggregate, paint, corrosion, oil, grease, wax, tar, asphalt, mastic compounds, waterproofing agents, or form release agents.
c.Dust masonry surfaces with a stiff brush and blow clean.
d.Wipe down metal and glass surfaces with mineral spirits or similar approved solvents.
e.Remove lacquer from caulking rabbets in aluminum.
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2.Masking: Mask as necessary for a neat and acceptable application.
3.Priming: Prime surfaces to receive sealants in strict accordance with manufacturer's recommendations.
4.Sealant Back-Up:
a.Where openings are more than 3/4inch in depth, fill joint to within 3/4inch of surface with back-up. Back-up shall be at least 1/4inch thicker than width of joint opening, making certain that back-up is under compression after insertion.
b.Exercise care while inserting back-up to maintain proper depth of caulking.
C.Application:
1.Sealant Consistency:
a.Proper consistency to be readily worked. Do not thin or dilute sealant in any manner.
b.Heating, mixing, and application shall be in strict accordance with manufacturer's recommendations.
2.Depth of Sealant: 1/2width of joint, but never less than 1/4inch deep.
3.Application Procedure:
a.Apply sealant with a caulking gun using proper nozzles.
b.Use sufficient pressure to properly fill joints with sealant to back-up material.
4.Tooling Sealant:
a.After joints have been completely filled, neatly tool to eliminate air pockets or voids and to provide a smooth, neat appearing finish in intimate contact with interfaces.
b.After tooling, surface of sealant shall be free of ridges, wrinkles, sags, air pockets, and embedded impurities.
3.04 ADJUSTING
A.Inspecting and Adjusting:
1.After other trades have completed work on adjacent construction, carefully inspect installations.
2.Make adjustments, if necessary, to ensure proper secure and weathertight installation.
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3.05 CLEANING
A.Cleaning of Construction Area:
1.Remove construction debris and dirt as each window unit is completed.