SUNY Cortland Renovations To Moffett Center Phase 2 Cortland, NY 13045

Transcription

1 SUNY Cortland Renovations To Moffett Center Phase 2 Cortland, NY Addendum 6 To the Bidding Documents, Project Manual, and Construction Drawings for: HOLT Project #: Date: [1/14/2019] This Addendum contains changes to the requirements of the Bidding Documents, Project Manual, and Construction Drawings that have been issued to date. Such changes are to be incorporated into the Construction and shall apply to the Work with the same meaning and force as if they had been included in the original documents. Wherever this Addendum modifies a portion of a paragraph of the Project Manual or a portion of any Drawing, the remainder of the paragraph or Drawing shall remain in force.

2 Renovations To Moffett Center Phase 2 Addendum 06 [1/14/2019] Part 1 Non-Contract Documents - Bidding Requirements 1. No Changes. Part 2 Contract Documents General 2. No Changes. Part 3 Contract Documents Specifications (Refer to Part 5 for specification sections that are being reissued in full. Modifications will be underlined) 3. DIVISION 06 WOOD, PLASTICS, AND COMPOSITES 3.1. Refer to SHEATHING Refer to Paragraph 1.2.A DELETE AND REPLACE Subparagraph 2 in its entirety ADD Subparagraph 3 in its entirety DELETE AND REPLACE Paragraph 2.4 in its entirety DELETE AND REPLACE Paragraph 2.4 in its entirety ADD Paragraph 2.5 in its entirety DELETE AND REPLACE Paragraph 3.2 in its entirety ADD Paragraph 3.3 in its entirety. 4. DIVISION 08 - OPENINGS 4.1. Refer to MIRRORS DELETE AND REPLACE Paragraph 1.2.A.1 in its entirety DELETE AND REPLACE Paragraph 2.2.B in its entirety. Part 4 Contract Documents Drawings (Refer to Part 5 for drawings that are being reissued in full. Modifications will be bubbled and tagged) Part 5 Attachments (Drawings and specification sections listed below are being reissued in full by this addendum. Modifications to drawings have been bubbled and tagged. Modifications to specification sections have been underlined.) Contract Documents: No changes. Page 2 of 3

3 Renovations To Moffett Center Phase 2 Addendum 06 [1/14/2019] Specifications SECTION SHEATHING SECTION MIRRORS Drawings SHEET AD101 GROUND FLOOR DEMOLITION PLAN NORTH SHEET AD103 FIRST FLOOR DEMOLITION PLAN NORTH SHEET AD104 FIRST FLOOR DEMOLITION PLAN - SOUTH SHEET AD105 SECOND FLOOR DEMOLITION PLAN NORTH SHEET AD106 SECOND FLOOR DEMOLITION PLAN - SOUTH SHEET A160 FINISH SCHEDULE SHEET A166 SECOND FLOOR FINISH PLAN SOUTH SHEET A452 STAIR PLANS AND SECTIONS End of Addendum 6 f:\17069-suny cortland-moffett center\work in progress - models + word files\addenda\bid addenda\addn 2\cortlandmoffettctr_add-02 mep.docx Page 3 of 3

4 Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No SECTION SHEATHING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Roof sheathing. 2. Underlayment. 3. Sheathing joint and penetration treatment. B. Related Requirements: 1. Section "Miscellaneous Rough Carpentry" for plywood backing panels. 1.3 ACTION SUBMITTALS A. Product Data: For each type of process and factory-fabricated product. Indicate component materials and dimensions and include construction and application details. 1.4 DELIVERY, STORAGE, AND HANDLING A. Stack panels flat with spacers beneath and between each bundle to provide air circulation. Protect sheathing from weather by covering with waterproof sheeting, securely anchored. Provide for air circulation around stacks and under coverings. PART 2 - PRODUCTS 2.1 PERFORMANCE REQUIREMENTS A. Fire-Resistance Ratings: As tested according to ASTM E 119; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency. 1. Fire-Resistance Ratings: Indicated by design designations from UL's "Fire Resistance Directory" or from the listings of another qualified testing agency. ADDENDUM 06, JANUARY 14, 2019 SHEATHING

5 2.2 ROOF SHEATHING Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No A. Glass-Mat Gypsum Sheathing: ASTM C 1177/1177M. 1. Products: Subject to compliance with requirements, provide one of the following: a. CertainTeed Corporation; GlasRoc. b. Georgia-Pacific Building Products; Dens-Glass Gold. c. National Gypsum Company; Gold Bond exp Extended Exposure Sheathing. d. Temple-Inland Building Products by Georgia-Pacific; GreenGlass Exterior Sheathing. e. United States Gypsum Co.; Securock. 2. Type and Thickness: Type X, 5/8 inch thick. 3. Size: 48 by 96 inches. 2.3 SUBFLOORING AND UNDERLAYMENT A. Underlayment: Provide underlayment in nominal thicknesses indicated or, if not indicated, not less than 1/4 inch over smooth subfloors and not less than 3/8 inch over board or uneven subfloors. 1. Plywood Underlayment for Resilient Flooring: DOC PS 1, Exposure 1 Underlayment with fully sanded face. 2.4 FASTENERS A. General: Provide fasteners of size and type indicated that comply with requirements specified in this article for material and manufacture. 1. For roof and wall sheathing, provide fasteners of Type 304 stainless steel. B. Nails, Brads, and Staples: ASTM F C. Power-Driven Fasteners: Fastener systems with an evaluation report acceptable to authorities having jurisdiction, based on ICC-ES AC70. D. Screws for Fastening Gypsum Sheathing to Cold-Formed Metal Framing: Steel drill screws, in length recommended by sheathing manufacturer for thickness of sheathing to be attached. 1. For steel framing less than inch thick, use screws that comply with ASTM C For steel framing from to inch thick, use screws that comply with ASTM C 954. ADDENDUM 06, JANUARY 14, 2019 SHEATHING

6 Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No SHEATHING JOINT-AND-PENETRATION TREATMENT MATERIALS A. Sealant for Glass-Mat Gypsum Sheathing: Silicone emulsion sealant complying with ASTM C 834, compatible with sheathing tape and sheathing and recommended by tape and sheathing manufacturers for use with glass-fiber sheathing tape and for covering exposed fasteners. 1. Sheathing Tape: Self-adhering glass-fiber tape, minimum 2 inches wide, 10 by 10 or 10 by 20 threads/inch, of type recommended by sheathing and tape manufacturers for use with silicone emulsion sealant in sealing joints in glass-mat gypsum sheathing and with a history of successful in-service use. PART 3 - EXECUTION 3.1 INSTALLATION, GENERAL A. Do not use materials with defects that impair quality of sheathing or pieces that are too small to use with minimum number of joints or optimum joint arrangement. Arrange joints so that pieces do not span between fewer than three support members. B. Cut panels at penetrations, edges, and other obstructions of work; fit tightly against abutting construction unless otherwise indicated. C. Securely attach to substrate by fastening as indicated, complying with the following: 1. Table , "Fastening Schedule," in the ICC's International Building Code. 2. ICC-ES evaluation report for fastener. D. Coordinate wall and roof sheathing installation with flashing and joint-sealant installation so these materials are installed in sequence and manner that prevent exterior moisture from passing through completed assembly. E. Do not bridge building expansion joints; cut and space edges of panels to match spacing of structural support elements. F. Coordinate sheathing installation with installation of materials installed over sheathing so sheathing is not exposed to precipitation or left exposed at end of the workday when rain is forecast. 3.2 WOOD STRUCTURAL PANEL INSTALLATION A. Fastening Methods: Fasten panels as indicated below: 1. Underlayment: a. Nail or staple to subflooring. b. Space panels 1/32 inch apart at edges and ends. ADDENDUM 06, JANUARY 14, 2019 SHEATHING

7 Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No c. Fill and sand edge joints of underlayment receiving resilient flooring immediately before installing flooring. 3.3 GYPSUM SHEATHING INSTALLATION A. Comply with GA-253 and with manufacturer's written instructions. 1. Fasten gypsum sheathing to wood framing with nails or screws. 2. Fasten gypsum sheathing to cold-formed metal framing with screws. 3. Install panels with a 3/8-inch gap where non-load-bearing construction abuts structural elements. 4. Install panels with a 1/4-inch gap where they abut masonry or similar materials that might retain moisture, to prevent wicking. B. Apply fasteners so heads bear tightly against face of sheathing, but do not cut into facing. C. Vertical Installation: Install vertical edges centered over studs. Abut ends and edges with those of adjacent panels. Attach at perimeter and within field of panel to each stud. 1. Space fasteners approximately 8 inches o.c. and set back a minimum of 3/8 inch from edges and ends of panels. 2. Seal sheathing joints according to sheathing manufacturer's written instructions. 3. Apply glass-fiber sheathing tape to glass-mat gypsum sheathing joints and apply and trowel sealant to embed entire face of tape in sealant. Apply sealant to exposed fasteners with a trowel so fasteners are completely covered. Seal other penetrations and openings. END OF SECTION ADDENDUM 06, JANUARY 14, 2019 SHEATHING

8 Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No SECTION MIRRORS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes the following types of silvered flat glass mirrors: 1. Laminated glass mirrors qualifying as safety glazing. B. Related Requirements: 1. Section "Glazing" for glass with reflective coatings used for vision lites. 2. Section "Toilet, Bath, and Laundry Accessories" for metal-framed mirrors. 1.3 ACTION SUBMITTALS A. Product Data: For each type of product. 1. Mirrors. Include description of materials and process used to produce each type of silvered flat glass mirror specified that indicates sources of glass, glass coating components, edge sealer, and quality-control provisions. B. Shop Drawings: Include mirror elevations, edge details, mirror hardware, and attachment details. 1.4 CLOSEOUT SUBMITTALS A. Maintenance Data: For mirrors to include in maintenance manuals. 1.5 QUALITY ASSURANCE A. Installer Qualifications: A qualified installer who employs glass installers for this Project who are certified under the National Glass Association's Certified Glass Installer Program. ADDENDUM 06, JANUARY 14, 2019 MIRRORS

9 Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No DELIVERY, STORAGE, AND HANDLING A. Protect mirrors according to mirror manufacturer's written instructions and as needed to prevent damage to mirrors from moisture, condensation, temperature changes, direct exposure to sun, or other causes. B. Comply with mirror manufacturer's written instructions for shipping, storing, and handling mirrors as needed to prevent deterioration of silvering, damage to edges, and abrasion of glass surfaces and applied coatings. Store indoors. 1.7 FIELD CONDITIONS A. Environmental Limitations: Do not install mirrors until ambient temperature and humidity conditions are maintained at levels indicated for final occupancy. 1.8 WARRANTY A. Special Warranty: Manufacturer agrees to replace mirrors that deteriorate within specified warranty period. Deterioration of mirrors is defined as defects developed from normal use that are not attributed to mirror breakage or to maintaining and cleaning mirrors contrary to manufacturer's written instructions. Defects include discoloration, black spots, and clouding of the silver film. 1. Warranty Period: Five years from date of Substantial Completion. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Avalon Glass and Mirror Company. 2. Binswanger Glass. 3. Donisi Mirror Company. 4. Gardner Glass Products, Inc. 5. Guardian Industries Corp. 6. Independent Mirror Industries, Inc. 7. Lenoir Mirror Company. 8. National Glass Industries. 9. Virginia Mirror Company, Inc. B. Source Limitations for Mirrors: Obtain mirrors from single source from single manufacturer. C. Source Limitations for Mirror Accessories: Obtain mirror glazing accessories from single source. ADDENDUM 06, JANUARY 14, 2019 MIRRORS

10 2.2 SILVERED FLAT GLASS MIRRORS A. Mirrors, General: ASTM C Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No B. Laminated Mirrors: ASTM C 1172, Type II. 1. Glass for Outer Lite: Annealed float glass, Mirror Glazing Quality, clear. a. Nominal Thickness for Outer Lite: 3.0 mm. c. Nominal Thickness for Outer Lite: [3.0 mm] [4.0 mm] [5.0 mm] [6.0 mm] [As indicated] <Insert thickness>. 2. Glass for Inner Lite: Annealed float glass; ASTM C 1036, Type I (transparent flat glass), Quality-Q3; Class 1 (clear). 3. Interlayer: inch-thick, clear polyvinyl-butyral interlayer with a proven record of showing no tendency to delaminate from, or cause damage to, silver coating. a. Basis-of-Design Product: Subject to compliance with requirements, provide CR Laurence Co. Inc.; Category II Safety Backing Tape or mirror manufacturer's standard product. C. Safety Glazing Products: For tempered mirrors, provide products that comply with 16 CFR 1201, Category II. 2.3 MISCELLANEOUS MATERIALS A. Setting Blocks: Elastomeric material with a Shore, Type A durometer hardness of 85, plus or minus 5. B. Edge Sealer: Coating compatible with glass coating and approved by mirror manufacturer for use in protecting against silver deterioration at mirrored glass edges. C. Mirror Mastic: An adhesive setting compound, asbestos-free, produced specifically for setting mirrors and certified by both mirror and mastic manufacturer as compatible with glass coating and substrates on which mirrors will be installed. 1. Adhesive shall have a VOC content of 70 g/l or less. 2.4 MIRROR HARDWARE A. Aluminum J-Channels and Cleat: Aluminum extrusions with a return deep enough to produce a glazing channel to accommodate mirrors of thickness indicated and in lengths required to cover edges of mirrors in a single piece. 1. Bottom and Side Trim: J-channels formed with front leg and back leg not less than 5/16 and 3/4 inch in height, respectively. a. Andscot Company, Inc. b. Laurence, C. R. Co., Inc. c. Stylmark, Inc. ADDENDUM 06, JANUARY 14, 2019 MIRRORS

11 Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No Top Trim: Formed with front leg with a height matching bottom trim and back leg designed to fit into the pocket created by wall-mounted aluminum cleat. a. Andscot Company, Inc. b. Laurence, C. R. Co., Inc. c. Stylmark, Inc. 3. Finish: Clear bright anodized. B. Fasteners: Fabricated of same basic metal and alloy as fastened metal and matching it in finished color and texture where fasteners are exposed. C. Anchors and Inserts: Provide devices as required for mirror hardware installation. Provide toothed or lead-shield, expansion-bolt devices for drilled-in-place anchors. Provide galvanized anchors and inserts for applications on inside face of exterior walls and where indicated. 2.5 FABRICATION A. Fabricate mirrors in the shop to greatest extent possible. B. Fabricate cutouts for notches and holes in mirrors without marring visible surfaces. Locate and size cutouts so they fit closely around penetrations in mirrors. C. Mirror Edge Treatment: Flat polished. 1. Seal edges of mirrors with edge sealer after edge treatment to prevent chemical or atmospheric penetration of glass coating. 2. Require mirror manufacturer to perform edge treatment and sealing in factory immediately after cutting to final sizes. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, over which mirrors are to be mounted, with Installer present, for compliance with installation tolerances, substrate preparation, and other conditions affecting performance of the Work. B. Verify compatibility with and suitability of substrates, including compatibility of existing finishes or primers with mirror mastic. C. Proceed with installation only after unsatisfactory conditions have been corrected and surfaces are dry. ADDENDUM 06, JANUARY 14, 2019 MIRRORS

12 Renovations to MOFFETT CENTER - PHASE II SUNY Cortland 40 Graham Avenue, Cortland, NY HOLT Project No PREPARATION A. Comply with mastic manufacturer's written installation instructions for preparation of substrates, including coating substrates with mastic manufacturer's special bond coating where applicable. 3.3 INSTALLATION A. General: Install mirrors to comply with mirror manufacturer's written instructions and with referenced GANA publications. Mount mirrors accurately in place in a manner that avoids distorting reflected images. 1. GANA Publications: "Glazing Manual" and "Mirrors, Handle with Extreme Care: Tips for the Professional on the Care and Handling of Mirrors." B. Provide a minimum airspace of 1/8 inch between back of mirrors and mounting surface for air circulation between back of mirrors and face of mounting surface. C. Install mirrors with mastic and mirror hardware. Attach mirror hardware securely to mounting surfaces with mechanical fasteners installed with anchors or inserts as applicable. Install fasteners so heads do not impose point loads on backs of mirrors. 1. Aluminum J-Channels and Cleat: Fasten J-channel directly to wall and attach top trim to continuous cleat fastened directly to wall. 2. Install mastic as follows: a. Apply barrier coat to mirror backing where approved in writing by manufacturers of mirrors and backing material. b. Apply mastic to comply with mastic manufacturer's written instructions for coverage and to allow air circulation between back of mirrors and face of mounting surface. c. After mastic is applied, align mirrors and press into place while maintaining a minimum airspace of 1/8 inch between back of mirrors and mounting surface. 3.4 CLEANING AND PROTECTION A. Protect mirrors from breakage and contaminating substances resulting from construction operations. B. Do not permit edges of mirrors to be exposed to standing water. C. Maintain environmental conditions that prevent mirrors from being exposed to moisture from condensation or other sources for continuous periods of time. D. Clean exposed surface of mirrors not more than four days before date scheduled for inspections that establish date of Substantial Completion. Clean mirrors as recommended in writing by mirror manufacturer. END OF SECTION ADDENDUM 06, JANUARY 14, 2019 MIRRORS

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