SECTION PREFORMED CLADDING. A. Part A and DIVISION 1 of PART B are hereby made a part of this SECTION.

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1 SECTION PART 1 GENERAL 1.01 GENERAL REQUIREMENTS A. Part A and DIVISION 1 of PART B are hereby made a part of this SECTION. B. Examine all conditions as they exist at the project prior to submitting a bid for the work of this SECTION SCOPE OF WORK A. Furnish and install the following as shown on the Drawings and specified herein: 1. Prefinished, preformed aluminum mechanical screen wall panels. 2. Prefinished, preformed aluminum and natural metal soffit panels, flashings fascia trim, gutters and downspouts. 3. All related clip strips, furring and subframing members, trim pieces, fasteners and internal sealants required for a complete installation RELATED WORK SPECIFIED ELSEWHERE A. The following related work is to be performed under the designated Sections: 1.04 SUBMITTALS 1. Wood blocking and plywood back-up: SECTION ROUGH CARPENTRY. 2. Membrane roofing systems and related flashings, including gravel stop: SECTION ROOFING AND FLASHING. 3. Window systems and trim: SECTION METAL WINDOWS. 4. Sealants at joints between preformed cladding and dissimilar materials: SECTION WATERPROOFING, DAMPPROOFING and CAULKING. 5. Continuous membrane air barrier: SECTION AIR AND VAPOR BARRIERS. 6. Steel framing: SECTION STRUCTURAL STEEL. 7. Stud walls receiving cladding: SECTION GYPSUM WALLBOARD. A. Submit complete shop drawings in accordance with the provisions of SECTION SUBMITTALS

2 B. Include large-scale details of sheet metal work, showing layout of panels, corners, joints, terminations, method of attachment and relationship to adjacent materials. C. Submit 12 inch long samples of profiles to be installed. Submit 24 inch square, minimum, assembly of each type of panel system. 1. Wall panel shall show materials and condition at typical head, sidewall and edge/eave conditions. 2. Downspout sample with elbow. 3. Mechanical screenwall sample. D. Submit color samples showing paint manufacturer's full range of available colors for specified finish. E. Finish applicator to provide written notification of approval from paint manufacturer stating applicator is approved by manufacturer to apply the specified finish. F. Maintenance Stock - Provide Owner with one quart of touch up paint for each color panel. Submit to Architect a signed letter of receipt stating that Owner has taken possession of materials. G. Submit air and water infiltration test results for roof and wall panels performed by an independent testing laboratory. H. Shop drawings shall include complete layout and design calculations for aluminum wall panel systems, prepared and stamped by structural engineer registered in the Commonwealth of Massachusetts. Shop drawings shall include subframing arrangement, gauges and sizes, bracing and connection details. Indicate type grade and manufacture of all materials to be used

3 1.05 GUARANTEE A. Paint finish shall have 20 year non-prorated warranty. B. Panel Applicator shall provide a five-year weather-tightness warranty QUALITY ASSURANCE A. Reference standards 1. SMACNA, Architectural Sheet Metal Manual (latest edition). B. Qualifications: 1. Panel manufacturer/installer shall have a minimum of 5 years experience with similar systems in type and size to this project. 2. Fabricator/installer shall be approved by the panel manufacturer. C. Submit the following: 1. Experience record showing the fabricator/installerʼs training and experience in similar work. 2. List and give brief description of similar work, satisfactorily completed, with location, date of contracts, together with names and addresses of owners. D. The Architect reserves the right to reject the fabricator/installer if (1) the required qualification data is not received or (2) the data submitted indicates an unsatisfactory experience record as determined by the Architect. E. Completed wall panel systems shall meet the following test criteria: 1. Wind Loading 21 PSF basic wind pressure (36 PSF salient corners, 25 PSF non salient areas, per Massachusetts code). 2. Allowable deflection of any support member not exceeding L/180 of the unsupported plan. 3. Design system to provide movement of components without causing buckling, failure of joint seals, undue stress on fasteners or other detrimental effect including oil canning, when subject to seasonal temporal changes

4 1.07 DELIVERY, STORAGE AND HANDLING A. Protect finish with strippable polyethylene in accordance with panel manufacturerʼs recommendations. B. Store material in accordance with panel manufacturerʼs recommendation COORDINATION OF FINISH A. Coordinate finish of preformed cladding with the manufacturer of metal windows furnished and installed under SECTION METAL WINDOWS

5 PART 2 PRODUCTS 2.01 MANUFACTURER A. To establish a standard of quality, function, design and color range, specifications and drawings are based on custom fabricated formed materials manufactured by Centria. Centria, Peterson Alumium, Alcoa or approved equal. B. Similar products by other manufacturers will be considered for approval by the Architect upon receipt of adequate supporting data and samples. C. NOTE: Profiles required under this contract are based on modifications to manufacturer's members as indicated on the Drawings MATERIALS A. General-Prefinished, preformed cladding items shall be factory formed to the profiles and details shown on the drawings, and supplied in not less than 10 foot lengths. Finish surfaces shall be free of "oil-canning" waviness, or ripples. Factory paint finish shall be applied after forming. 1. Gauges of wall panels, fascias, flashings, and miscellaneous trim shall be.050 inch thick unless otherwise shown in the drawings. Running trim shall be supplied in 10 foot lengths. 2. Mechanical screen panels: a. Flush panels shall be Centria concealed fastener Series IW10A, 1-1/2 thick, with a 12 inch wide face without beads,.050 aluminum. b. Step panels shall be Centria concealed fastener Series IW 21A, 1-1/2 thick x 12 wide having a 6 inch raised profile, with beads,.050 aluminum. c. Perforated panels shall be exposed fastener type Econolap, 3/4 inch thick x 34 inch wide, 40% open with staggered 1/8 inch diameter holes,.050 aluminum. d. Corrigated panels shall be exposed fastener type Econolap, 3/4 inch thick x 34 inch wide.50 aluminum. 3. Corners, end caps, expansion joint offset plates, and other fabrications shall be formed, welded and ground smooth before finishing. 4. Concealed receiver strips, cleats, clip strips, etc. shall be factory formed from aluminum in gauges recommended by the manufacturer. Fasteners shall be non-corrosive. Fasteners shall be concealed unless otherwise shown on the Drawings. Exposed fasteners shall match panel color and shall be of type approved by the Architect. 5. Soffit panels shall be Centria Series IW10A, 12 inch wide x 1 1/2 inch high flush face type without beads,.050 inch thick aluminum. 6. Sealants at metal to metal joints shall be one part low modules silicone compatible with adjacent materials. 7. Provide factory drilled weep holes where required to shed water. 8. Subframing - Roll formed zee and cee and hat sections, depth to suit installation conditions, fabricated from 18 gauge G-90 galvanized steel

6 B. Prefinished - To establish a basis of quality and design, finish of preformed cladding items is based PPG Duranar, a Kynar 500 based 2 coat fluoropolymer coating system. Similar coating systems by other manufacturers will be considered as an equal by the Architect upon receipt of adequate supporting data. Application of the finish shall be by an applicator approved by the finish manufacturer. A maximum of three custom colors shall be selected by the architect

7 PART 3 EXECUTION 3.01 INSTALLATION A. Do not proceed with work until substrate construction is completed. Inspect substrate and verify substrate complies with allowable tolerances and shop drawing layout. Cooperate following with trades responsible for installation of adjacent construction. B. Comply with SMACNA requirements unless otherwise indicated by the Contract Documents. In case of conflict, most stringent standards shall govern. C. Install prefinished wall panels, cladding, mechanical screen wall and items and sealant materials in accordance with the approved shop drawings and the manufacturer's written instructions. 1. Install panels plumb, level and straight with seams and ribs parallel, conforming to the design as indicated. 2. Install panels so that they are weather-tight - without waves, warps, buckles or distortions - and allow for expansion and contraction. Exercise care in handling panels and trim to prevent surface damage. 3. Caulk all flashings and panel joints that require caulking to prevent water penetration. 4. Ribbed pans will be vertically broken under ridges and hooked at eves to insure weather-tightness. 5. Clip strips, cleats, etc. shall be continuous along length of preformed cladding. 6. Fasteners shall be concealed. No exposed fasteners will be accepted in the finished work. Do not use face nailing on exposed surfaces. Space fasteners per manufacturer's recommendations. 7. Hem exposed edges 1/2 inch. 8. Overlap seams at ends a minimum of 4 inches and fill with sealant. Lap seams to shed water. D. Composite wall panels Install composite panel system in accordance with the approved shop drawings and the manufacturerʼs written instructions. 1. Surfaces to receive panels shall be even, smooth, sound, clean, dry and free from defects detrimental to work. Notify contractor in writing of conditions detrimental to proper and timely completion of the work. Do not proceed with erection until unsatisfactory conditions have been corrected. 2. Surfaces to receive panels shall be structurally sound as determined by a registered Architect/Engineer

8 3. Erect panels plumb, level and true. 4. Attachment system shall allow for the free and noiseless vertical and horizontal thermal movement due to expansion and contraction for a material temperature range of 20 F to +180 F. Buckling of panels, opening of joints, undue stress on fasteners, failure of sealants or any other detrimental effects due to thermal movement will not be permitted. Fabrication, assembly and erection procedure shall account for the ambient temperature at the time of the respective operation. 5. Panels shall be erected in accordance with an approved set of shop drawings. 6. Anchor panels securely per engineering recommendations and in accordance with approved shop drawings to allow for necessary thermal movement and structural support. 7. Conform to panel fabricatorʼs instructions for installation of concealed fasteners. 8. Do not install component parts which are observed to be defective, including: warped, bowed, dented, abraised and broken members. 9. Do not cut, trim, weld or braze component parts during erection in a manner which would damage the finish, decrease strength, or result in a visual imperfection or failure in performance. Return component parts which require alteration to shop for refabrication, if possible, or for replacement with new parts. 10. Separate dissimilar metals and use gasketed fasteners where needed to eliminate the possibility of corrosive or electrolytic action between metals. E. Protect factory finish from damage during installation. Field touch-up marred finish and field cuts to match factory finish. END OF SECTION