Okaloosa County BOCC — February 18, 2014 — Reroofing TDD Welcome Center - Documents — reading text

3. Provide coordination information indicating the effect of the substitution on other work and the time schedule. 4. Provide cost information for the proposed Change Orcer. 3.03 CHANGE ORDER A. Approval of substitutions is possible only by the Change Order or Supplemental Instructions procedure. END OF SECTION 01630 ee Page 15 SECTION 07620 SHEET METAL FLASHING PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. The Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.02 SUMMARY A. This Section includes the installation of the metal flashing, counter-flashings and trim. B. Related Sections include the following: 1. Section 07416 - Metal Roof Panels 2. Section 07900 - Joint Sealants 1.03 REFERENCES A. Flashing shall meet or exceed the requirements specified in the Florida Building Code (2010 version) B. AAMA 2604 - Voluntary Specification, Performance Requirements and Test Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels. C. ASTM B 32 - Standard Specification for Solder Metal. D. ASTM B 209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate. E. SMACNA (ASMM) - Architectural Sheet Metal Manual; Sheet Metal and Air Conditioning Contractors’ National Association. 1.04 SUBMITTALS A. Product Data: For each type of product and material required, including Manufacturer's installation instructions and general recommendations for each fabricated product. B. Shop Drawings showing layouts, profiles, method of joining and anchoring details for all major counter-flashings, trim 1. Provide any drawings at a reasonable scale for clarity. 1.05 QUALITY ASSURANCE A. Except as otherwise shown on Drawings or specified, the workmanship of the sheet metal work, method for forming joints, anchoring, cleating and provisions for expansion shall conform to the standard details and recommendations of SMACNA Architectural Sheet Metal Manual requirements and standard details or NRCA Manual. B. Where pre-engineered manufactured systems are specified, other field fabricated or shop fabricated substitutions will not be accepted. ees Page 16 1.06 COORDINATION A. Coordinate work of this section with interfacing and adjoining work for the proper sequencing of each installation. Ensure best possible weather resistance and durability of work and protection of materials and finishes. 1.07 DELIVERY, STORAGE AND HANDLING A. Deliver sheet metal flashing materials and fabrications undamaged. Protect sheet metal flashing and trim materials and fabrications during transportation and handling. B. Unload, store, and install sheet metal flashing materials and fabrications in a manner to prevent bending, warping, twisting, and surface damage. C. Stack materials on platforms or pallets, covered with suitable weather-tight and ventilated covering. Do not store sheet metal flashing and trim materials in contact with other materials that might cause staining, denting, or other surface damage. PART 2 - PRODUCTS 2.01 MATERIALS A. The type and locations of the various kinds, gauges, thickness and finish of sheet metal to be used is specified herein after and under the individual items. Where sheet metal is indicated on the Drawings and kind of metal is not definitely specified, gaivanized steel shall be provided, unless it is associated with the scope of work for the metal roof panels. B. Galvanized Steel: ASTM A792/A 792M-08 AZ55, G-90, .025 inches thick (24 gauge) minimum except as otherwise indicated. Provide a twenty (20) year warranty on the finish of sheet metal and five (5) years on installation. C. Reglets and Counter-flashings shall be as manufactured by the Fry Reglet Corporation or an approved equal. 1. Type: Shall be type "SM" made of 24 gauge galvanized steel with slots for expansion, punched approximately 16 inches o.c. for surface mounting. Provide factory fabricated mitered corners. Provide Fry "Springlock" counter-flashing. Products of other manufacturers will be acceptable providing they meet or exceed the quality specified, and they can provide products of the type, size and function required. wr 2.02 MISCELLANEOUS MATERIALS A. Solder: For use with steel or copper, provide 50-50 tin/lead solder (ASTM B32-08), with rosin flux, for use with stainless steel, provide 60 - 40 tin/lead solder (ASTM B32-08), acid- chloride type flux, except use rosin flux over tinned surfaces B. Fasteners: Same metal as flashing /sheet metal or other non-corrosive metal as recommended by sheet manufacturer. Match finish or exposed heads with material being fastened. C. Bituminous Coating: SSPC - Paint 12, solvent-type bituminous mastic, nominally free of sulfur, compounded for 15-mil dry film thickness per coat. Page 17 D. Elastomeric Sealant: Generic type recommended by manufacturer of metal and fabricator of components being sealed and complying with requirements for joint sealants as specified in Section 07900 - Joint Sealers. E. Adhesives: Type recommended by flashing sheet manufacturer for waterproof / weather-resistant seaming and adhesive application of flashing sheet. F. Reglets: Metal of the type and profiles as indicated, compatible with the flashing indicated, all shall be a non-corrosive metal. G. Metal Accessories: Provide sheet metal clips, straps, anchoring devices and / or similar accessory units as required for the installation of work, matching or compatible with the material being installed, non-corrosive, size and gauge required for the performance level required. 2.03 FABRICATION A. Shop-fabricate all work to the greatest extent possible. Complying with the details shown and with applicable requirements of SMACNA "Architectural Sheet Metal Manual" and any other recognized industry practices. Fabricate for waterproof and weather-resistant performance, with expansion provisions for running work, sufficient to permanently prevent leakage, damage, or deterioration of the work. Form work to fit substrates. Comply with the material manufacturer's instructions and recommendations for forming the material. Form exposed sheet metal work without excessive oil-canning, buckling and tool marks, true to line and levels indicated, with exposed edges folded back to form hems. B. Seams: Fabricate non-moving seams in sheet metal with flat-lock seams. For metal other than aluminum, tin edges to be seamed, form seams and soldered. Form aluminum seams with epoxy seam sealer; and add riveted joints for additional strength where required. C. Expansion Provisions: Where lapped or bayonet-type expansion provisions in work cannot be used or would not be sufficiently water / weatherproof, form expansion joints of inter- meshing hooked flanges, not less than 1 inch deep, filled with mastic sealant (concealed within joints). D. Sealant Joints: Where movable. non-expansion type joints are indicated or required for proper performance of work, form metal to provide for proper installation of elastomeric sealant, in compliance with SMACNA standards. E. Separations: Provide for the separation of metal from non-compatible metal or corrosive substrates by coating concealed surfaces at locations of contact, with a bituminous coating or other permanent separation as recommended by manufacturer and/or fabricator. Page 18 PART 3 - EXECUTION 3.01 EXAMINATION A. Examine substrates and conditions, with Installer present, for compliance with the requirements in which substrates and related work are specified and to determine if other conditions affecting the metal flashing are satisfactory. Do not proceed with any of the installation of the flashing, until all unsatisfactory conditions have been corrected. 3.02 INSTALLATION . Sheet metal work shall be watertight and weather- A. Comply with the manufacturer's written installation instructions and/or recommendations applicable to the products and applications indicated. Anchor all units of work securely in-place by methods indicated, providing for thermal expansion of metal units; conceal fasteners where possible, and set units true to line and level as indicated. Install work with laps, joints and seams that will be permanently watertight and weatherproof. . Install all metal flashing work with provisions for thermal expansion for items exposed for more than 15 feet in a continuous length. Maintain a watertight installation at all expansion seams. Locate expansion seams where shown, or if not shown, install in conformance with applicable recommendations of the “Architectural Sheet Metal Manual" by SMACNA. tight: lines, arises and angles sharp les. Workmen shall be experienced in he Work in accordance with any and and true; plain surfaces free from waves and buck the trade and thoroughly capable of performing t all of these requirements. D. Install reglets to receive the counter-flashing in a manner and by methods indicated. E. Install counter-flashing in reglets, either by snap-in seal arrangement or by welding in place for anchorage and filling reglets with a mastic or elastomeric sealant, as indicated and depending on the degree of sealant exposure. F. The installation of all prefabricated reglets and counter-flashings shall be as follows. 1, Apply a continuous bead of sealant or plastic cement to the back of regiets. 2. Install regiets on a surface of flexible flashing on wall parallel to roof slope with fasteners furnished by manufacturer. Fill the top groove with sealant and tool tight against wall with the surface of the sealant sloping to outside. 3. Position the counter-flashing into reglets and "snap" into place against the wall flashing. 3.03 CLEANING AND PROTECTION A. Clean the exposed metal surfaces, removin B. g any and all substances that might cause the corrosion of metal or deterioration of the finishes Inform the Contractor of any required procedures or requirements for the surveillance and protection of the metal flashing and sheet metal work during construction to ensure that the work will be without damage and/or deterioration other than the natural weathering at the time of Substantial Completion. ———— res Page 19 C. Replace any sheet metal flashing and/or trims th deteriorated beyond the ability to successfully re minor repair procedures. at have been damaged or that has pair by either a finish touch-up or similar END OF SECTION 07620 Page 20 SECTION 07301 ROOF UNDERLAYMENT PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. The Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. 1.02 SUMMARY A. This Section includes the following installation of the roof underlayment: 1. Underlayment to be applied to sloped plywood roof deck beneath the metal roofing. B. Related Sections include the following: 1. Section 07416 - Metal Roof Panels 2. Section 07620 - Sheet Metal Flashing and Trim 1.03 REFERENCES A. ASTM D 412-0éae1 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers-Tension. B. ASTM D 903-98(2004) Standard Test Method for Peel or Stripping of Adhesive Bonds. C. ASTM D 3767-03(2008) Standard Practice for Rubber-Measurement of Dimensions. D. ASTM E 96/E 96M-05 Standard Test Methods for Water Vapor Transmission of Materials. 1.04 SUBMITTALS A. Product Data: For each type of product and material required, including product specifications and product test reports. 1.05 QUALITY ASSURANCE A. Obtain roof underlayment from a single source with the resources to provide products complying with requirements indicated without delaying the Work. 1.06 WARRANTY A. Product underlayment shail be warranted against defects by the manufacturer. Page 21 PART 2 - PRODUCTS 2.01 MANUFACTURERS A. Available Products are Subject to compliance with the requirements, products that may be incorporated into the Work include,