Patinated-performance-specification-Spec-Section-074229-Alphaton-M2

SECTION 074229 TERRACOTTA RAINSCREEN CLADDING (ALPHATON® M2 System) Logo Display hidden notes to specifier by using “Tools”/”Options”/”View”/”Hidden Text” ** NOTE TO SPECIFIER ** Shildan, Inc.; terracotta rainscreen cladding This section is based on the products of Shildan, Inc., which is located at: 2047 Briggs Rd Mount Laurel, NJ 08054 Phone: 215-525-4512 Fax: 215-525 4511 Web Site: www.shildan.com Shildan is the leading supplier of terracotta for beautiful and energy-efficient building facades as well as for ceramic sunscreen products From concept to completion Shildan provides engineering and detailing assistance to the architect, accurate budget pricing to the contractors and owners from experienced and trained installers We excel in meeting or exceeding expectation after the order Leading architects worldwide including Foster, Grimshaw, Piano, KPF, Polshek and many others have used our products for signature buildings because of their timeless beauty and functionality Shildan, with offices close to New York City, Philadelphia and Los Angeles, is the leading supplier of terracotta facades and ceramic sunscreen products in North America It is the exclusive North American representative of Moeding, the leading terracotta manufacturer worldwide Shildan also has worldwide distribution of ALPHATUBE®, manufactured by Haldenwanger 074229-1 Shildan maintains representatives and a network of expert rainscreen installers throughout North America Working closely with these representatives, Shildan is contributing to the growing movement of modernism and environmentalism by supplying beautiful clay materials that are durable, energy efficient and code compliant while creating signature buildings worthy of national recognition Moeding, located outside Munich in Germany, is the leader in supplying terracotta for building facades in the world In business for over 100 years, Moeding is owned by GIMA, a larger company which produces tiles, pavers and other masonry products GIMA/Moeding is also associated with ERLUS, a public company specializing in terracotta products PART GENERAL 1.1 SECTION INCLUDES ** NOTE TO SPECIFIER ** Delete items below not required for project A Terracotta panel rainscreen system including the following: Aluminum clip and sub-girt system Extruded double-leaf (terracotta) clay panels Flashing, weather-seals, cover plates and decorative metal trim Miscellaneous anchors, fasteners, adhesives, insulation, vapor barrier, sealants, and related accessories 1.2 RELATED SECTIONS ** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required A Section 05020 - Structural Metal Framing B Section 05400 - Cold Formed Metal Framing C Section 05500 - Metal Fabrications 074229-2 1.3 D Section 06100 - Rough Carpentry E Section 07100 - Dampproofing and Waterproofing F Section 07210 – Building Insulation G Section 07260 - Vapor Retarders H Section 07270 - Air Barriers I Section 07600 - Flashing and Sheet Metal J Section 07900 - Joint Sealers K Section 08925 – Glazed Aluminum Curtain Walls and Sloped Glazing REFERENCES ** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section A ASTM International (ASTM): ASTM B 209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate ASTM B 221 - Standard Specification for Aluminum and Aluminum Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes ASTM C 484 - Standard Test Method for Thermal Shock Resistance of Glazed Ceramic Tile ASTM C 1167 - Standard Specification for Clay Roof Tiles 074229-3 ASTM E 283 – Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Speciment ASTM E 331 – Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference ASTM E 547 – Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Cyclic Static Air Pressure Difference ASTM E 782 - Standard Practice for Exposure of Cover Materials for Solar Collectors to Natural Weathering Under Conditions Simulating Operational Mode ASTM E 1105 - Standard Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls, by Uniform or Cyclic Static Air Pressure Difference B National Association of Architectural Metal Manufacturers (NAAMM): Metal Finishes Manual for Architectural and Metal Products C Florida Building Code (FBC): TAS 202 – Uniform Structural Load Standards TAS 203 – Uniform Cyclic Pressure Test Standards 1.4 SUBMITTALS A Submit under provisions of Section 01300 B Product Data: Manufacturer's data sheets on each product to be used, including: Preparation instructions and recommendations Storage and handling requirements and recommendations Cleaning methods ** NOTE TO SPECIFIER ** Delete if not required C LEED Submittals: 074229-4 Product Data for Credit 4: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content Include statement indicating cost for each product having recycled content Regional Materials Credit MR 5: Product data for regional materials indicating location and distance from Project of material manufacturer and point of extraction, harvest, or recovery for each raw material Include statement indicating cost for each regional material and the weight that is considered regional D Shop Drawings: Complete shop drawings shall be submitted for approval prior to fabrication, with detailed elevations and sections of each condition and application; including metal thickness, finish, methods of installation, anchorage and expansion joints, width, bow, camber, squareness tolerances necessary to accommodate thermal movement and relationship with adjacent construction E Engineering Calculations: Submit calculations for design of exterior wall system, including deflections, in place stresses, negative pull-off loads and capacity of fasteners Calculations shall be signed and sealed by a Professional Engineer registered in the location of the Project ** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected F Selection Samples: Colors and Finishes: Two sets of samples, minimum inches (200 mm) x inches (100 mm), representing manufacturer's full range of available colors and finishes G Verification Samples: Color and Finish: Two sets of samples, minimum inches (200 mm) x inches (100 mm), representing actual products and finishes specified System Components: Two sets of profile samples, minimum 12 inches (300 mm) long 1.5 PERFORMANCE REQUIREMENTS 074229-5 A Description: Provide a complete, pre-engineered aluminum clip and sub-girt system, closure pieces, trim and flashing The system is to be composed of double-leaf terracotta panels, which can only be removed on purpose, panels on aluminum clips at head grooves and base channels and fastened to vertical aluminum sub-frame The vertical subframe is attached to horizontal aluminum “L” profile, which are attached with aluminum clip angles to the structural back-up wall system B Design Criteria: Condensation: System shall accommodate positive drainage for moisture entering or condensation occurring within the terracotta rainscreen panel system Design system to allow for movements within structure, support loads transferred from the adjacent construction and to fit within the space allotted without projections into the finished space as shown on the Drawings The system is to have a continuous aluminum spacer between each two panels which will have the following functions: a Keep the uniformed joint dimension and align the panels b Prevent the panel from rattling c Integral drainage to direct condensation and minimize water infiltration within the Rainscreen cavity 1.6 QUALITY ASSURANCE A Manufacturer’s Qualifications: Manufacturer shall have 10 years’ experience manufacturing 30mm thick double-leaf terracotta panels and vertical support system Terracotta panels and vertical support system are to be provided by the same manufacturer Manufacturer must have provided 30mm thick double leaf terracotta for over 100 projects totaling at least 500,000 sq ft Prior to approval as an acceptable supplier, Manufacturer shall demonstrate the capability of producing the patinated finish by listing ten completed projects in the United States with the patinated finish B Qualifications of Installers: 074229-6 The cladding installer shall be approved by the manufacturer of the terracotta rainscreen system The installer will have experience with 100,000 sq ft of rainscreen installation and 20,000 sq ft of terracotta rainscreen installation For actual installation of cladding, use only competent and skilled mechanics completely familiar with the products and the manufacturer’s currently recommended methods of installation C D Source Responsibility: The rainscreen system, including the terracotta panels, aluminum sub-structure, and support system, shall be manufactured by the same company The entire terracotta rainscreen system, with all its components,and the patinated finish will have been used at least 10 years and in more than 30 projects Performance Test Standards: Provide exterior wall system which has been tested and certified by manufacturer to provide specified resistance to air and water infiltration when installed as indicated and when tested in accordance with AAMA 508-07, “Methods of Test for Pressure Equalized Rainscreen Wall Cladding Systems.” ** NOTE TO SPECIFIER ** Delete if not required 1.7 PRECONSTRUCTION TESTING OF TERRA-COTTA PANELS A Absorption: Test according to ASTM C 1167 using 24 hour submersion (separate sets of specimens, minimum specimens each) Absorption by submersion shall not be less than percent or exceed percent average and percent individual specimen B Freezing and Thawing: Test according to ASTM C 1167 for 100 cycles requiring minimum of 50 days minimum specimens) No specimen shall lose more than percent of its original dry weight No specimen shall crack, crumble or fracture Specimens shall conform to approved color range samples before and after testing C Modulus of Rupture: Test according to modified ASTM C 1167 67 (minimum specimens) Supports shall be actual hardware used for this project Apply load at mid-span between 074229-7 supports Report shall include breaking load, calculated section modules at mid-span, and calculated breaking stress D Separate sets of specimens are required to be tested for each combination of color and texture For a given color and texture combination, the most common size panel for the project shall be tested, except for breaking load, where panel size corresponding to maximum span shall be tested If multiple widths occur to maximum span, test width shall be selected by Architect E Thermal Shock Resistance: Test according to ASTM C 484 for glazed panels Minimum of specimens Specimens shall pass one cycle ** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution The following is one example of how a mock-up on a large project might be specified When deciding on the extent of the mock-up, consider all the major different types of work on the project F Mock-Up: Provide a completely assembled, typical wall areas installed with related accessories, in composite configurations designed to fulfill the performance criteria, and representative of the design as shown on the Drawings Extent of mock-up shall be the same as that which will be provided in the final work Mock-up shall be installed simulating actual construction conditions, including actual structural supports and connections Use means, methods and techniques proposed for final installation Locate mock-up in location as directed by the Architect Do not proceed with remaining work until workmanship is approved by Architect Personnel assembling mock-up shall be the same personnel that will perform the actual final units of work at the project site Mock-up shall be subjected to testing criteria specified for final installation ** NOTE TO SPECIFIER ** Delete one of the two following options Mock-up area may become part of finished work Mock-up area may not become part of finished work 1.8 DELIVERY, STORAGE, AND HANDLING 074229-8 1.9 A Deliver, store and handle materials and products in strict compliance with manufacturer's instructions and recommendations and industry standards B Store materials in manufacturer's original sealed, labeled packaging until ready for installation and in accordance with manufacturer's instructions Protect from damage SEQUENCING AND SCHEDULING A Pre-Installation Conference: Convene conference prior to start of cladding work, and at Contractor’s direction to review installation procedures and to establish procedures to maintain optimum working conditions and to coordinate this work with related and adjacent work Meeting shall include Contractor, Architect, major material manufacturers, and subcontractors whose work needs coordination with cladding work 1.10 WARRANTY A Manufacturer's Warranty: Provide manufacturer’s standard 10 year limited warranty against defects in materials B Installer’s Warranty: Provide Installer’s year installation warranty that exterior wall system will remain weathertight during the warranty period and that if a leak occurs, that the system will be repaired or replaced as required to render the system weathertight, at no cost to the Owner The installation warranty shall cover labor and materials PART PRODUCTS 2.1 MANUFACTURERS A Basis of design is Shildan, Inc./ Moeding Keramikfassaden GmbH, Germany 30mm doubleleaf terracotta panels c/o 2047 Briggs Road, Mount Laurel, NJ 08054 (215-525-4510) 074229-9 ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division section on product options and substitutions B Substitutions: Not permitted C Requests for substitutions will be considered in accordance with provisions of Section 01600 ** NOTE TO SPECIFIER ** Moeding invented the double leaf terracotta panel for building facades and its unique aluminum clip and attachment system Moeding has been awarded over 40 patents for its panel and support system which are in place on over 3000 buildings around the world Some of these projects have been in place since 1982 in locations with climates as demanding as Scandinavia, Iceland, Moscow and the Middle East Moeding produces the highest quality panel in terms of water absorption, strength and flatness With the longest and newest kiln in the world, Moeding can provide the largest panels in an energy efficient and economical process Moeding not only invented the system but has continuously innovated and improved the terracotta panel and system by investing in the latest technology Those are the reasons Moeding is the industry leader today 2.2 TERRACOTTA CLAY PANEL RAINSCREEN SYSTEMS ** NOTE TO SPECIFIER ** Delete if not required A Exterior Wall Systems: ALPHATON® Terracotta Rainscreen Cladding as manufactured by Shildan, Inc Construction: Double leaf clay (terra-cotta) panel shapes Panel Thickness: 1-3/8 inch (30 mm) thickness Size and Configuration: As indicated on the Drawings ** NOTE TO SPECIFIER ** Delete options for panel type not required Panel Type: Standard Panel Type: Ribbed Panel Type: Deep Grooved Panel Type: Waved Panel Type: Grooved Panel Type: Custom ** NOTE TO SPECIFIER ** Confirm with manufacturer that desired color is available with desired finish Delete options for finish not required 074229-10 Finish: Patinated a Patinated Color Effect: Tonal variation of color within a panel similar to aging of an artifact resulting in areas of color change from darker to lighter shades b Color: Match color and tonal variation of basis of design product c Patinated Terracotta Panels: Provide patinated color panels as follows: 1) Full Patinated Panels: Provide approximately 50 percent of terracotta panels which have the full tonal variation from the darkest to the lightest shade of selected color 2) Medium Patinated Panels: Provide approximately 25 percent of terracotta panels which has a tonal variation of +/- percent lighter/darker variation of selected color 3) Light Patinated Panels: Provide approximately 25 percent of terracotta panels which has little to no tonal variation d Placement of Terracotta Panels: Randomly mix patinated panels on the faỗade so that when installed, different color shades will provide a “cloud-like” appearance Finish: Standard Finish: Grooved Finish: Polished Finish: Brushed ** NOTE TO SPECIFIER ** Confirm with manufacturer that desired color is available with desired finish Delete options for colors not required Color: Braun Color: Dunkelrot Color: Oxyrot Color: Naturrot 10.Color: Orange 11 Color: Pastellrot 12.Color: Lachs 13.Color: Beig 14.Color: Safran 15 Color: Elfenbein 074229-11 16 Color: Perlgrau 17.Color: Quarzgrau 18 Color: Eisengrau 19 Color: Vulkangrau 20.Color: Blaugrau 2.3 MATERIALS A Double-leaf (30mm) Terracotta Panel Units: Pigmentation: Integral, surface applied color not acceptable Tolerances for Terracotta Panels: a Length (axis) 150 to 1500 mm: Tolerance +/- mm b Height (axis) 150 to 400 mm: Tolerance +/- 1.2% c Thickness 30 mm: Tolerance +/- 2.0 mm d Longitudinal Bending (in direction of holes): Tolerance +/- 0.7% of length e Transverse Bending Across Holes: Tolerance +/- 1.0% of height f Wing Spacing (height of gap at four-point-measurement): Tolerance +/-0.7% of length + height g Edge Bending (bend in tile level): Tolerance +/- 0.5% of length of edge h Angle Difference (left/right of cut ends of tile in direction of holes): Tolerance 90 degrees +/- 0.3%, or 0.5 mm in 100 mm Terracotta panels to meet following requirements: a Water Absorption: Test according to ASTM C 1167 using 24-hour submersion (separate sets of specimens, minimum specimens each) Absorption by submersion shall not be less than percent or exceed percent average, percent individual specimen b Freeze/Thaw: Test according to ASTM C 1167 for 200 cycles No specimen shall crack, crumble or fracture c Efflorescence: Test according to ASTM C 1167 Minimum 10 specimens d Specimens to be rated “non-efflorescence” 074229-12 B Fasteners, Clips, and Anchor Channels: Supplied in accordance with manufacturer’s recommendations to meet load requirements specified All fasteners must be stainless steel groups 1, or as designated by the structural calculations C Spacers: Supplied and installed in accordance with manufacturer’s recommendations Only SILICONE gaskets or sealants may be used D Nonferrous Metals: Aluminum Plate and Sheet: ASTM B 209 (ASTM B 209M), Alloy 6061-T6 Aluminum Extrusions: ASTM B 221 (ASTM B 221M), Alloy 6063-T6 E Accessories: Corrosion resistant type capable of supporting cladding system and superimposed design loads; design to allow adjustments of system prior to being permanently fastened in place F Finishes, General: Comply with NAAMM’s “Metal Finishes Manual for Architectural and metal Products” for recommendations for applying and designating finishes Protect mechanical finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping G Aluminum Finishes: The aluminum support system shall have mill finish All concealed support system components shall be mill finished unless otherwise specified on the drawings H Bituminous Paint: Cold-applied mastic, SSPC Paint 12, compounded for 30 mil thickness per coat 074229-13 I Support System; Fastening Method: A complete, pre-engineered aluminum clip and subgirt system, complying with the following requirements: The panels are fastened at head grooves and base channels using aluminum clips The aluminum clips must be fastened to aluminum sub-frame in order to maintain an accurate gap Panels must be capable of easy and fast assembly The replacement of damaged panels, particularly in the middle sections, must be possible using simple methods and should not require special tools Under no circumstances shall it be possible to remove individual panels unless they are first destroyed PART EXECUTION 3.1 EXAMINATION AND PREPARATION A Examine the area, substrates, structural supports, and adjoining construction to receive terracotta panel rainscreen system work and verify: Dimensions of supporting structure by accurate field measurements so that terracotta panel rainscreen system work will be accurately fitted to the structure Verify dimensions found to be different than shown, including specified tolerances Correctness of backing, support, and tolerance conditions That framework is secure and properly aligned and prepared to receive composite panel work Absence of defects that would adversely affect installation B Do not start work until unsatisfactory conditions are corrected in a manner acceptable to terracotta panel rainscreen system contractor C Prepare substrates using the methods recommended by the manufacturer for achieving best result for the substrates under project conditions 074229-14 Supply metal anchors to be built in to other trades for placement Provide sufficient quantity and direct placement Ensure items built in by other trades for this work are properly located and sized Establish lines, levels and shims as required Protect from disturbance Do not install broken, chipped or cracked units 3.2 D Do not proceed with installation until substrates have been prepared using the methods recommended by the manufacturer and deviations from manufacturer’s recommended tolerances are corrected Commencement of installation constitutes acceptance of conditions E If preparation is the responsibility of another installer, notify Architect in writing of deviations from manufacturer’s recommended installation tolerances and conditions INSTALLATION A Install anchor channels and clips as indicated and in accordance with manufacturer’s instructions Install sufficient anchorage devices to securely and rigidly fasten system to building Fasteners to be concealed Provide anchors to be installed in other work, and setting details, in time for proper installation by trades concerned; verify correct placement Install terracotta panel units on mounting clips Assemble and anchor various components to allow for expansion and contraction, maintaining watertight condition Ensure assembly is plumb, level and free of warp or twist; maintain dimensional tolerances and alignment with adjacent work Allow moisture entering joints and condensation occurring within cavity to drain to exterior a Design drainage system to hold maximum anticipated moisture for 100 year rain cycle without overflowing Apply coat of bituminous paint on concealed aluminum surfaces to be in contact with steel, cementitious, or dissimilar materials 074229-15 Set panels in bond pattern indicated on drawings B Tolerances: Measurements are on the surface exposed to view The aluminum support system shall not exceed manufacturer’s tolerances Measurements are taken after installation of terracotta panels’ aluminum support system, and hardware at project site Securely fasten aluminum support system, terracotta panels to building structure and adjust to maintain specified tolerances C Adjusting: Install terracotta clay panels so that in their final location and position, they are not twisted out of plane Adjust work to conform with the following tolerances (maximum variations): Face Width of Joints: Plus or minus 1/8 inch (3 mm) Jog in Alignment of Edge: Plus or minus 1/8 inch (3 mm) Rough Opening Dimension: Plus or minus 1/8 inch (3 mm) at head, plus or minus 1/8 inch (3 mm) at sill, and plus or minus 1/8 inch (3 mm) at jamb Deviation from Plumb: plus or minus 1/8 inch (3 mm) Deviation from Horizontal: plus or minus 1/8 inch (3 mm) maximum in a 20 foot (6 m) run D Built-In Work: As work progresses, build in anchor bolts, flashing and other items supplied by other trades Install items plumb and true Do not build in organic materials subject to rot or deterioration Remove protective film from finished aluminum surfaces E Cutting: When field cutting is undertaken, care shall be exercised to ensure that cuttings not remain on exposed surfaces F Provide anchorage devices and fasteners where needed to secure decorative metal to inplace construction 074229-16 G Perform cutting, drilling, and fitting required to install decorative metal Erect the Work accurately in location, alignment, and elevation, measured from established lines and levels, free of measurable variations from plumb, level or line Provide temporary bracing or anchors in formwork for items to be built into concrete, masonry, or similar construction H Fit exposed connections accurately together to form tight, hairline joints or, where indicated, uniform reveals and spaces for sealants and joint fillers Where cutting, welding, and grinding are required for proper shop fitting and jointing of decorative metal, restore finishes to eliminate evidence of such corrective work I Do not cut or abraze finishes that cannot be completely restored in the field Return items with such finishes to the shop for required alterations, followed by complete refinishing, or provide new units as required J Install concealed gaskets, joint fillers, insulation, and flashings as work progresses K Restore protective coverings that have been damaged during shipment or installation Remove protective coverings only when there is no possibility of damage from other work yet to be performed at same location Retain protective coverings intact; remove coverings simultaneously from similarly finished items to preclude non-uniform oxidation and discoloration L Staining and-or Corrosion Protection: Separate aluminum from direct contact with metals other than stainless steel, zinc, cadmium, or nickel bronze by painting contact surfaces with zinc chromate primer and aluminum paint or with a coat of heavy-bodied bituminous paint or by nonabsorptive tape or gasket Paint exterior aluminum in contact with wood and aluminum in contact with concrete or masonry with zinc chromate primer and aluminum paint or heavy-bodied bituminous paint 3.3 CLEANING AND PROTECTION 074229-17 A Cleaning: Clean soiled surfaces using materials which will not harm clay panel units or adjacent materials Consult clay panel manufacturer to acceptable cleaners Use non-metallic tools in cleaning operations Upon completion of installation, remove protective coatings or coverings and clean aluminum surfaces, exercising care to avoid damage of finish Remove excess sealant compounds, dirt or other foreign substances Remove and replace clay panel units that are broken, chipped, cracked, abraded or damaged during construction period Reinstall in accordance with manufacturer’s instructions B Protect installed products until completion of project C Touch-up, repair or replace damaged products before Substantial Completion END OF SECTION 074229-18