GENERAL: MODIFICATIONS TO THE PROJECT MANUALlionberger.com/files/2016/08/Addendum-1-Combined.pdf73...

29
Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070 ADDENDUM NO. 1 Page 1 of 4 GENERAL : 1 Planholders are requested to attach this Addendum to the inside front cover of each Project Manual. 2 Inform all concerned that the Bidding Documents are modified by this Addendum. 3 The following modifications and clarifications are hereby made a part of the Bidding Documents and 4 supersede or otherwise modify the provisions of the published Project Manual and Drawings, dated 5 July 29, 2016. 6 Refer to the Drawings and Specification Sections, if any, attached to this Addendum, which are 7 hereby made a part of this Addendum. 8 MODIFICATIONS TO THE PROJECT MANUAL : 9 ASBESTOS ABATEMENT PROJECT DESIGN 10 DELETE the separate Bid Form that is included within the Asbestos Abatement Project Design 11 its entirety and utilize the Bid Form that is found in the Project Manual following the Invitation to 12 Bid for submitting bids for this project. 13 SECTION 064023 - INTERIOR ARCHITECTURAL WOODWORK 14 DELETE Paragraph 1.4/E in its entirety. 15 DELETE Paragraph 1.5/A and SUBSTITUTE: 16 A. Fabricator and Installer Qualifications: Shop that employs skilled workers who custom- 17 fabricate and install products similar to those required for this Project and whose products have a 18 record of successful in service performance.19 DELETE Paragraph 1.5/B in its entirety. 20 ADD Paragraph 2.1/D: 21 “D. Solid-Surfacing Material (at shower room lavatory counters): Homogeneous solid sheets 22 of filled plastic resin complying with ISSFA-2. 23 1. Available Manufacturers: Subject to compliance with requirements, 24 manufacturers offering products that may be incorporated into the Work include, but are 25 not limited to, the following: 26 a. LG Hausys (“Hi-Macs”) 27 b. E. I. du Pont de Nemours and Co.. (“Corian”) 28 c. Formica Corporation. 29 d. Samsung; Cheil Industries Inc. (Staron) 30 2. Type: Standard type. 31 3. Colors and Patterns: As selected by Architect from manufacturer's full range 32 (price groups A through B).33 ADD Paragraph 2.10: 34 “2.10 SOLID-SURFACING-MATERIAL COUNTERTOPS 35 A. Solid-Surfacing-Material Thickness: 1/2-inch Colors, Patterns, and Finishes: Provide 36 materials and products that result in colors of solid-surfacing material complying with the 37 following requirements: 38

Transcript of GENERAL: MODIFICATIONS TO THE PROJECT MANUALlionberger.com/files/2016/08/Addendum-1-Combined.pdf73...

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia APN 550070

    ADDENDUM NO. 1 Page 1 of 4

    GENERAL: 1

    Planholders are requested to attach this Addendum to the inside front cover of each Project Manual. 2

    Inform all concerned that the Bidding Documents are modified by this Addendum. 3

    The following modifications and clarifications are hereby made a part of the Bidding Documents and 4

    supersede or otherwise modify the provisions of the published Project Manual and Drawings, dated 5

    July 29, 2016. 6

    Refer to the Drawings and Specification Sections, if any, attached to this Addendum, which are 7

    hereby made a part of this Addendum. 8

    MODIFICATIONS TO THE PROJECT MANUAL: 9

    ASBESTOS ABATEMENT PROJECT DESIGN 10

    DELETE the separate Bid Form that is included within the Asbestos Abatement Project Design 11

    its entirety and utilize the Bid Form that is found in the Project Manual following the Invitation to 12

    Bid for submitting bids for this project. 13

    SECTION 064023 - INTERIOR ARCHITECTURAL WOODWORK 14

    DELETE Paragraph 1.4/E in its entirety. 15

    DELETE Paragraph 1.5/A and SUBSTITUTE: 16

    “A. Fabricator and Installer Qualifications: Shop that employs skilled workers who custom-17

    fabricate and install products similar to those required for this Project and whose products have a 18

    record of successful in service performance.” 19

    DELETE Paragraph 1.5/B in its entirety. 20

    ADD Paragraph 2.1/D: 21

    “D. Solid-Surfacing Material (at shower room lavatory counters): Homogeneous solid sheets 22

    of filled plastic resin complying with ISSFA-2. 23

    1. Available Manufacturers: Subject to compliance with requirements, 24

    manufacturers offering products that may be incorporated into the Work include, but are 25

    not limited to, the following: 26

    a. LG Hausys (“Hi-Macs”) 27

    b. E. I. du Pont de Nemours and Co.. (“Corian”) 28

    c. Formica Corporation. 29

    d. Samsung; Cheil Industries Inc. (Staron) 30

    2. Type: Standard type. 31

    3. Colors and Patterns: As selected by Architect from manufacturer's full range 32

    (price groups A through B).” 33

    ADD Paragraph 2.10: 34

    “2.10 SOLID-SURFACING-MATERIAL COUNTERTOPS 35

    A. Solid-Surfacing-Material Thickness: 1/2-inch Colors, Patterns, and Finishes: Provide 36

    materials and products that result in colors of solid-surfacing material complying with the 37

    following requirements: 38

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia APN 550070

    ADDENDUM NO. 1 Page 2 of 4

    1. As selected by Architect from manufacturer's full range from price groups A-B. 39

    B. Fabricate tops in one piece, unless otherwise indicated. Comply with solid-surfacing-40

    material manufacturer's written recommendations for adhesives, sealers, fabrication, and 41

    finishing. 42

    1. Fabricate tops with shop-applied edges of materials and configuration indicated. 43

    2. Fabricate tops with loose backsplashes for field application. 44

    C. Cut openings and drill holes in countertops for plumbing fixtures and soap dispensers in 45

    shop.” 46

    SECTION 075423 - THERMOPLASTIC POLYOLEFIN (TPO) ROOFING 47

    ADD new specification section 075423 - Thermoplastic Polyolefin (TPO) Roofing to the project 48

    manual. 49

    SECTION 081113 – STEEL DOORS AND FRAMES 50

    DELETE paragraph 2.3/A/1 and SUBSTITUTE: 51

    “1. Design: As indicated on the Drawings” 52

    DELETE paragraph 2.3/B/1/a regarding dutch doors. 53

    SECTION 096519 54

    Paragraph 2.2, ADD new subparagraph J as follows: 55

    “J. STATIC DISSIPATIVE TILE FLOORING 56

    1. Static dissipative tile flooring applies to room “IT/COMMS/RADIO 57

    EQUIPMENT” Room 114. 58

    2. Description: Static dissipative vinyl tile composed of polyvinyl chloride resin, 59

    plasticizers, fillers, pigments, and antistatic additive with colors and texture dispersed 60

    uniformly throughout its thickness. 61

    3. Tile shall meet size, thickness, indentation, impact, deflection, dimensional 62

    stability, resistance to chemicals, squareness, and resistance to heat requirements of 63

    ASTM F 1066 Standard Specification for Vinyl Composition Tile, Class 2, through 64

    pattern. 65

    4. Available products include, but are not limited to: 66

    a. Excelon SDT by Armstrong World Industries 67

    5. Provide Static Dissipative Tile Adhesive recommended by the flooring 68

    manufacturer with 2 in. wide x 24 in. long copper ground-connection strips for under the 69

    tile.” 70

    SECTION 095113 - ACOUSTICAL PANEL CEILINGS 71

    Paragraph 2.2 A: ADD “4. Roxul-Rockfon Alaska dB” 72

    SECTION 212200 - CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS 73

    ADD new specification section 212200 - Clean-Agent Fire Extinguishing Systems to the project 74

    manual. 75

    SECTION 263213 - ENGINE GENERATORS 76

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia APN 550070

    ADDENDUM NO. 1 Page 3 of 4

    Paragraph 2.1/A ADD: 77

    “4. MTU Onsite Energy/Detroit Diesel Generator (MTU 6RO120DS 180)” 78

    MODIFICATIONS TO THE DRAWINGS: 79

    DRAWING A1.1 80

    DELETE Drawing A1.1 “DEMOLITION PLAN” dated July 29, 2016 in its entirety and 81

    SUBSTITUTE revised Drawing A1.1 “DEMOLITION PLAN AND HAZARDOUS 82

    MATERIALS INFORMATION” dated August 30, 2016 included with Addendum 1. 83

    DRAWING A3.0 84

    Refer to DOOR SCHEDULE on A3.0, for DOOR 113; under “Comments” ADD the following: 85

    “REUSE EXISTING SALVAGED DOOR” 86

    REFER TO DRAWINGS ATTACHED TO THE END OF THIS ADDENDUM 87

    REFER TO SPECIFICATIONS ATTACHED TO THE END OF THIS ADDENDUM 88

    END OF ADDENDUM NO 1 89

    Pre Bid Questions / Responses: 90

    1. Q. Is third party air clearance abatement monitoring required to be included as part of this 91 Contract? 92

    R. The County of Rockbridge has secured REC, Inc. as their Owner’s representative to perform 93

    the 3rd party duties in accordance with Section 400 of the Asbestos Abatement Project Design 94

    requirements. 95

    2. Q. 081113 Doors Part 2 Product 2.3 Standard Hollow Metal Doors paragraph A1. Stile and rail to 96 match existing. The drawings show flush doors. Which door is to be provided? 97

    R. Refer to Addendum 1. 98

    3. Q. The following question concerns Drawing number A7.0: Casework Keynotes on A7.0 call for 99 "Solid Surface Material" for the countertop material in the new shower rooms. However, no 100

    definition of what solid surface material desired is indicated. Spec Section 064023, page 1, 101

    paragraph 1.2: only calls for Plastic Laminate countertops for the project. Are the countertops in 102

    the new shower rooms to be solid surface or plastic laminate? 103

    R. Refer to Addendum 1. 104

    4. Q. Spec Section 064023, page 1, paragraph 1.5: May the requirement for the casework sub-105 contractor to be a certified participant in the AWI Quality Certification Program be removed? 106

    This excludes qualified, local sub-contractors that are AWI members, but not participants in the 107

    QCP, from pricing this work. 108

    R. Refer to Addendum 1. 109

    5. Q. Detail 1/S4.1 shows a note to attach existing 2x6 flat wood decking to existing roof 110 truss.Detail 2/S4.1 shows the same note. Detail 3/S4.1 Says to re-nail existing plywood sheathing 111

    to existing trusses.What's under the shingles? 2x6's, plywood sheathing or some of both. 112

    R. As indicated in the structural details the type of wood decking/sheathing varies. 113

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia APN 550070

    ADDENDUM NO. 1 Page 4 of 4

    6. Q. The following question concerns Drawing number A10.1, Plan Note #2 calls for the existing 114 built up roof to be removed and a membrane roof placed down. What type of "membrane" roof 115

    are you seeking in this location? How much insulation is required at area? 116

    R. Refer to Addendum 1. 117

    7. Q. The following question concerns Drawing number A3.0; A3.0 Includes the Finish Schedule, 118 but no mention is made of Exterior Painting Requirements on the Finish Schedule. Is Exterior 119

    Painting to be included in the project?; The following question concerns Spec Section 099100, 120

    page 7, paragraph 3.6: Specification Section 099100 3.6 calls out an "Exterior Paint Schedule". 121

    This appears to define that Exterior Painting of the facility may be required. However, there is no 122

    exterior elevations (drawings) of the building that reflect exterior painting, nor is there mention of 123

    exterior painting on the Finish Schedule on A3.0. 124

    R. Incidental exterior painting is required. The required locations are identified in the Bid 125

    Documents. For example the bollards indicated on Drawing A1.0 must be painted. The referenced 126

    specification section does not require exterior painting of the entire building. 127

    8. Q. The following question concerns Drawing number A1.1; Demolition Plan includes Demo Key 128 Note #4 (Remove Existing Floor Finishes). However, this note is only applied to four rooms, but 129

    the entire renovated area calls for new floor finishes. Add Demo Key Note #4 to all renovated 130

    rooms? 131

    R. Refer to Addendum 1. 132

    9. Q. The following question concerns Drawing number A3.0, the Finish Schedule calls for VCT in 133 room 114. Do you want the "Static Smart" carpet tiles in this electrically sensitive area? The 134

    following question concerns Spec Section 09681, page 3, paragraph 2.1.A: "Static Smart" carpet 135

    tile is specified for the project but is not called for (per the finish schedule, in the 136

    "IT/COMMS/Radio Equipment" which I assume to be the most electrically sensitive room in the 137

    facility. 138

    R. Refer to Addendum 1 139

    10. The plans show removing the existing built up roofing from the rear of the building and installing 140 membrane roofing. What type of roof are we installing in that area and how much insulation do 141

    you need to install in this area? No specifications included for membrane Roofing. 142

    R. Refer to Addendum 1. 143

    11. Q. Section 212200 Clean Agent Fire Extinguisher System is listed on the Table of Contents for 144 the Project Manual, but not include in the Project Manual. Is a Clean Agent Fire suppression 145

    System required for this project? 146

    R. Refer to Addendum 1. 147

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 1

    SECTION 075423 - THERMOPLASTIC POLYOLEFIN (TPO) ROOFING

    PART 1 - GENERAL

    1.1 RELATED DOCUMENTS

    A. Provisions of the Contract and of the Contract Documents apply to this Section.

    1.2 SUMMARY

    A. Section Includes:

    1. Adhered thermoplastic polyolefin (TPO) roofing system.

    2. Vapor retarder/air barrier.

    3. Roof insulation.

    1.3 DEFINITIONS

    A. Roofing Terminology: Definitions in ASTM D 1079 and glossary in NRCA's “The NRCA Roofing and Waterproofing Manual” apply to work of this Section.

    1.4 PREINSTALLATION MEETINGS

    A. Preinstallation Roofing Conference: Conduct conference at Project site.

    1. Meet with Owner, Architect, Owner's insurer if applicable, testing and inspecting agency representative, roofing Installer, roofing system manufacturer's representative, deck Installer, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.

    2. Review methods and procedures related to roofing installation, including manufacturer's written instructions.

    3. Review and finalize construction schedule, and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

    4. Examine deck substrate conditions and finishes for compliance with requirements, including flatness and fastening.

    5. Review structural loading limitations of roof deck during and after roofing.

    6. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that affects roofing system.

    7. Review governing regulations and requirements for insurance and certificates if applicable.

    8. Review temporary protection requirements for roofing system during and after installation.

    9. Review roof observation and repair procedures after roofing installation.

    1.5 ACTION SUBMITTALS

    A. Product Data: For each type of product.

    B. Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other work, including:

    1. Base flashings and membrane terminations.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 2

    2. Tapered insulation, including slopes and preformed shapes (saddles, crickets, tapered edges).

    3. Insulation fastening patterns for corner, perimeter, and field-of-roof locations.

    1.6 INFORMATIONAL SUBMITTALS

    A. Qualification Data: For Installer and manufacturer.

    B. Installation Instructions: Provide manufacturer’s current printed instructions for installation of materials and systems proposed. Address conditions of projects including concrete deck preparation, required weather and temperature conditions for installation, and all roofing system components.

    C. Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in “Performance Requirements” Article.

    1. Submit evidence of compliance with performance requirements.

    D. Product Test Reports: For components of roofing system, tests performed by manufacturer and witnessed by a qualified testing agency.

    E. Research/Evaluation Reports: For components of roofing system, from ICC-ES.

    F. Sample Warranties: For manufacturer's special warranties.

    G. Inspection Report: Copies of roofing system manufacturer's inspection report of completed roofing installation, and of field inspection reports for startup and in-progress inspections.

    1.7 CLOSEOUT SUBMITTALS

    A. Maintenance Data: For roofing system to include in maintenance manuals.

    1.8 QUALITY ASSURANCE

    A. Manufacturer Qualifications: A qualified manufacturer that is UL listed for roofing system identical to that used for this Project.

    B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty.

    C. Inspection Reports of Roofing Manufacturer's Representative: Roofing manufacturer's representative shall inspect the work and provide copies of his inspection reports to the Architect and the Owner. The Installer shall notify manufacturer's representative of intended start date & schedule of roofing work.

    1. The Installer and Roofing manufacturer's representative shall inspect the substrate surfaces (deck) to receive roofing system prior to beginning installation.

    2. The roofing manufacturer's representative shall inspect the work no less than three times (startup, in-progress, and end-of-installation warranty inspection) during the application of the system and submit copies of inspection reports to the Architect and Owner within 7 days of the inspection.

    1.9 DELIVERY, STORAGE, AND HANDLING

    A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 3

    B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer. Protect stored liquid material from direct sunlight.

    1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life.

    C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation.

    D. Handle and store roofing materials, and place equipment in a manner to avoid permanent deflection of deck.

    1.10 FIELD CONDITIONS

    A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements.

    1.11 WARRANTY

    A. Special Warranty: Manufacturer's standard or customized form, without monetary limitation, in which manufacturer agrees to repair or replace components of membrane roofing system that fail in materials or workmanship within specified warranty period.

    1. Special warranty includes roofing, base flashings, roof insulation, fasteners, cover boards, substrate board, vapor retarder/air barrier, roofing accessories, and other components of roofing system.

    2. Warranty Period: 20 years from date of Substantial Completion.

    B. Special Project Warranty: Submit roofing Installer's warranty, on warranty form at end of this Section, signed by Installer, covering the Work of this Section, including all components of roofing system such as roofing, base flashing, roof insulation, fasteners, cover boards, substrate boards, vapor retarder/air barriers, roof pavers, and walkway products, for the following warranty period:

    1. Warranty Period: Two years from date of Substantial Completion.

    PART 2 - PRODUCTS

    2.1 MANUFACTURERS

    A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

    1. Carlisle SynTec Incorporated. 2. Firestone Building Products. 3. GAF Materials Corporation. 4. Johns Manville.

    B. Source Limitations: Obtain components for roofing system from same manufacturer as membrane roofing or manufacturer approved by membrane roofing manufacturer.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 4

    2.2 PERFORMANCE REQUIREMENTS

    A. General Performance: Installed roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Roofing and base flashings shall remain watertight.

    1. Accelerated Weathering: Roofing system shall withstand 2000 hours of exposure when tested according to ASTM G 152, ASTM G 154, or ASTM G 155.

    2. Impact Resistance: Roofing system shall resist impact damage when tested according to ASTM D 3746 or ASTM D 4272.

    B. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required, as demonstrated by roofing manufacturer based on testing and field experience.

    C. Roofing System Design: Provide membrane roofing system that is identical to systems that have been successfully tested by a qualified testing and inspecting agency to resist uplift pressure calculated according to ASCE/SEI 7 as established by [applicable building code] and loading indicated.

    1. Corner Uplift Pressure: Per building code and values indicated on Structural Drawings. 2. Perimeter Uplift Pressure: Per building code and values indicated on Structural

    Drawings. 3. Field-of-Roof Uplift Pressure: Per building code and values indicated on Structural

    Drawings.

    D. Exterior Fire-Test Exposure: ASTM E 108 or UL 790, Class A; for application and roof slopes indicated; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

    2.3 TPO ROOFING

    A. Fabric-Reinforced TPO Sheet: ASTM D 6878, internally fabric- or scrim-reinforced, uniform, flexible TPO sheet.

    1. Thickness: 60 mils, nominal.

    2. Exposed Face Color: White.

    3. Fire Retardant Treatment: Non-halogenated, non-bromine.

    2.4 AUXILIARY ROOFING MATERIALS

    A. General: Auxiliary materials recommended by roofing system manufacturer for intended use and compatible with roofing.

    1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction.

    B. Sheet Flashing: Manufacturer's standard unreinforced TPO sheet flashing, 55 mils thick, minimum, of same color as TPO sheet.

    C. Bonding Adhesive: Manufacturer's standard.

    D. Metal Termination Bars: Manufacturer's standard, predrilled stainless-steel or aluminum bars, approximately 1 by 1/8 inch thick; with anchors.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 5

    E. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Global 4470, designed for fastening roofing to substrate, and acceptable to roofing system manufacturer.

    F. Miscellaneous Accessories: Provide pourable sealers, preformed cone and vent sheet flashings, preformed inside and outside corner sheet flashings, T-joint covers, lap sealants, termination reglets, and other accessories.

    2.5 SUBSTRATE BOARDS

    A. Substrate Board: ASTM C 1177/C 1177M, glass-mat, water-resistant gypsum substrate, 1/2 inch thick. .

    1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following:

    a. CertainTeed Corporation; [GlasRoc Sheathing]. b. Georgia-Pacific Corporation; [Dens Deck Prime]. c. National Gypsum Company; Gold Bond eXP Extended Exposure Sheathing. d. Temple-Inland, Inc; GreenGlass Exterior Sheathing. e. USG Corporation; Securock Glass Mat Roof Board.

    B. Substrate Board: ASTM C 1278/C 1278M, cellulosic-fiber-reinforced, water-resistant gypsum substrate, 1/2 inch thick.

    1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following:

    a. USG Corporation; Securock Gypsum-Fiber Roof Board.

    C. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Global 4470, designed for fastening substrate board to roof deck.

    2.6 VAPOR RETARDER/AIR BARRIER

    A. Self-Adhering, Vapor Retarder/Underlayment Sheet: 30 to 40 mils thick minimum, consisting of slip-resisting polyethylene-film top surface laminated to layer of butyl or SBS-modified asphalt adhesive, with release-paper backing; cold applied. Provide primer when recommended by underlayment manufacturer.

    1. Thickness: 40 mils (0.0394”) minimum. 2. Air leakage: Less than 0.004 CFM/sq ft @1.6 lbs/sq ft (75 Pa.) per ASTM E283. 3. Vapor Permeance: 0.05 perms maximum per ASTM E96. 4. Low Temperature Flexibility: -20 degrees F per ASTM D1970: Pass. 5. Elongation: 200% per ASTM D412-modifed. 6. Thermal Stability: Stable after testing at 240 deg F; ASTM D 1970. 7. Adhesion: 3.0 lbs/in. width (525 N/m) minimum per ASTM D903 for plywood.

    8. Available Products: Subject to compliance with requirements, available products that may be incorporated into the Work include, but are not limited to, the following: a. Henry Company; “Blueskin RF200.” (basis of design) b. Grace, W. R. & Co.; “Ice and Water Shield.” c. Owens Corning; “WeatherLock.”

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 6

    2.7 ROOF INSULATION

    A. General: Preformed roof insulation boards manufactured or approved by TPO roofing manufacturer, selected from manufacturer's standard sizes suitable for application, of thicknesses indicated.

    1. Provide treated wood blocking as required for roofing system manufacturer’s approved installation details.

    B. Polyisocyanurate Board Insulation: ASTM C 1289, Type II, Class 1, Grade 2, felt or glass-fiber mat facer on both major surfaces.

    1. Design standard is Atlas “ACFoam-III.”

    2. 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:

    a. Atlas Roofing Corporation. b. Carlisle SynTec Incorporated. c. Firestone Building Products. d. GAF Materials Corporation. e. Johns Manville.

    C. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/4 inch per 12 inches unless otherwise indicated.

    D. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for sloping to drain. Fabricate to slopes indicated.

    2.8 INSULATION ACCESSORIES

    A. General: Roof insulation accessories recommended by insulation manufacturer for intended use and compatibility with roofing.

    B. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Global 4470, designed for fastening roof insulation[ and cover boards] to substrate, and acceptable to roofing system manufacturer.

    C. Insulation Adhesive: Insulation manufacturer's recommended adhesive formulated to attach roof insulation to substrate or to another insulation layer as follows:

    1. Bead-applied, low-rise, two-component urethane adhesive.

    2. Full-spread spray-applied, low-rise, two-component urethane adhesive.

    D. Cover Board: Provide one of the following, subject to compliance with terms of warranty.

    1. ASTM C 1177, glass-mat, water-resistant gypsum substrate with primer-sealer, 1/2 inch thick. Provide complying product of membrane manufacturer or “Dens-Deck Prime” by Georgia-Pacific Corporation.

    2. ASTM C1278 compliant, moisture-resistant, gypsum-cellulose board with maximum 10% water absorption by weight per ASTM C473; mold-resistant per ASTM D3273, 1/2-inch thick. a. “StrataGuard” by Owens Corning. b. “Securock” Roof Board by USG

    3. ASTM C 1289, Type II, Class I, exceeding Grade 3, high density, closed-cell, polyisocyanurate foam core with coated glass-fiber mat facer on both major surfaces, with maximum 3% water absorption by weight per ASTM C473; mold-resistant per

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 7

    ASTM D3273, minimum 100 psi compressive strength per ASTM D 1621, 1/4 or 1/2 inch thick as standard with manufacturer.

    a. Firestone “Isogard HD Cover Board.” www.firestonebpco.com b. Johns Manville “Invinca” www.jm.com c. Carlisle “SecurShield HD” www.carlisle-syntec.com

    2.9 WALKWAYS

    A. Flexible Walkways: Factory-formed, nonporous, heavy-duty, slip-resisting, surface-textured walkway pads or rolls, approximately 3/16 inch thick and acceptable to roofing system manufacturer.

    PART 3 - EXECUTION

    3.1 EXAMINATION

    A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements and other conditions affecting performance of the Work:

    1. Verify that roof openings and penetrations are in place, curbs are set and braced, and roof-drain bodies are securely clamped in place.

    2. Verify that wood blocking, curbs, and nailers are securely anchored to roof deck at penetrations and terminations and that nailers match thicknesses of insulation.

    B. Examine steel roof deck.

    1. Verify that surface plane flatness and fastening of steel roof deck complies with requirements.

    C. Proceed with installation only after unsatisfactory conditions have been corrected.

    3.2 PREPARATION

    A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according to roofing system manufacturer's written instructions. Remove sharp projections.

    B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is forecast.

    3.3 ROOFING INSTALLATION, GENERAL

    A. Install roofing system according to roofing system manufacturer's written instructions.

    B. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system at the end of the workday or when rain is forecast. Remove and discard temporary seals before beginning work on adjoining roofing.

    3.4 SUBSTRATE BOARD + AIR BARRIER INSTALLATION OVER STEEL DECK

    A. Install substrate board with long joints in continuous straight lines, perpendicular to roof slopes with end joints staggered between rows. Tightly butt substrate boards together.

    1. Fasten substrate board to top flanges of steel deck to resist uplift pressure at corners, perimeter, and field of roof according to roofing system manufacturers' written instructions.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 8

    B. Self-Adhering-Sheet Vapor Retarder/Air Barrier: Prime substrate if required by manufacturer. Install self-adhering-sheet vapor retarder over area to receive vapor retarder/air barrier, side and end lapping each sheet a minimum of 3-1/2 inches and 6 inches, respectively. Seal laps by rolling.

    1. Coordinate placement of VB/underlayment over substrate board on metal roof deck with other components of the building envelope to accomplish the air-tightness of the building enclosure which constitutes the total air barrier system specified in Section 018317 “Exterior Enclosure Air Barrier Requirements.”

    C. Completely seal vapor retarder/air barrier at terminations, obstructions, and penetrations to prevent air movement into roofing system.

    3.5 INSULATION INSTALLATION

    A. General: Provide insulation and cover board over prepared substrate:

    1. Coordinate installing roofing system components so insulation is not exposed to precipitation or left exposed at the end of the workday.

    2. Comply with roofing system and insulation manufacturer's written instructions for installing roof insulation.

    3. Install tapered insulation under area of roofing to conform to slopes indicated.

    4. Install two layers of 2-inch thickness polyisocyanurate insulation under area of roofing to achieve a cumulative Long Term Thermal Resistance (LTTR) value of 22.8 per ASTM C1289-13, followed by a cover board. Install the two layers of insulation and cover board with joints of each succeeding layer staggered from joints of previous layer a minimum of 6 inches in each direction.

    5. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not restrict flow of water.

    6. Install insulation with long joints of insulation in a continuous straight line with end joints staggered between rows, abutting edges and ends between boards. Fill gaps exceeding 1/4 inch with insulation.

    a. Cut and fit insulation within 1/4 inch of nailers, projections, and penetrations.

    B. Adhered Insulation on Steel Deck: Install each layer of insulation and adhere to substrate board + vapor-retarder.air barrier membrane as follows:

    1. Prepare exposed mechanically-secured substrate board + vapor-retarder.air barrier membrane to receive insulation

    2. Set first layer of insulation in a uniform coverage of insulation adhesive, firmly pressing and maintaining insulation in place.

    3. Set subsequent layer of insulation in a uniform coverage of full-spread insulation adhesive, firmly pressing and maintaining insulation in place.

    C. Install cover boards over insulation with long joints in continuous straight lines with end joints staggered between rows. Offset joints of insulation below a minimum of 6 inches in each direction. Loosely butt cover boards together and secure to insulation with uniform coverage of adhesive, firmly pressing and maintaining insulation in place.

    1. Fasten cover boards to resist uplift pressure at corners, perimeter, and field of roof.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 9

    3.6 ADHERED ROOFING INSTALLATION

    A. Install roofing membrane system according to roofing system manufacturer's written instructions and applicable recommendations in ARMA/NRCA's “Thermoplastic Roof Assembly Design Guidelines.”

    1. Install roofing system TP-I-A-S, according to roof assembly identification matrix and roof assembly layout illustrations in NRCA's “The NRCA Roofing and Waterproofing Manual” and to requirements in this Section.

    B. Adhere roofing over area to receive roofing according to roofing system manufacturer's written instructions. Unroll roofing and allow to relax before retaining.

    C. Start installation of roofing in presence of roofing system manufacturer's technical personnel.

    D. Accurately align roofing, and maintain uniform side and end laps of minimum dimensions required by manufacturer. Stagger end laps.

    E. Bonding Adhesive: Apply to substrate and underside of roofing at rate required by manufacturer, and allow to partially dry before installing roofing. Do not apply to splice area of roofing.

    F. In addition to adhering, mechanically fasten roofing securely at terminations, penetrations, and perimeter of roofing.

    G. Apply roofing with side laps shingled with slope of roof deck where possible.

    H. Seams: Clean seam areas, overlap roofing, and hot-air weld side and end laps of roofing and sheet flashings according to manufacturer's written instructions, to ensure a watertight seam installation.

    1. Test lap edges with probe to verify seam weld continuity. Apply lap sealant to seal cut edges of sheet.

    2. Verify field strength of seams a minimum of twice daily, and repair seam sample areas.

    3. Repair tears, voids, and lapped seams in roofing that do not comply with requirements.

    I. Spread sealant bed over deck-drain flange at roof drains, and securely seal roofing in place with clamping ring.

    3.7 BASE FLASHING INSTALLATION

    A. Install sheet flashings and preformed flashing accessories, and adhere to substrates according to roofing system manufacturer's written instructions.

    B. Apply bonding adhesive to substrate and underside of sheet flashing at required rate, and allow to partially dry. Do not apply to seam area of flashing.

    C. Flash penetrations and field-formed inside and outside corners with cured or uncured sheet flashing.

    D. Clean seam areas, overlap, and firmly roll sheet flashings into the adhesive. Hot-air weld side and end laps to ensure a watertight seam installation.

    E. Terminate and seal top of sheet flashings and mechanically anchor to substrate through termination bars.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 10

    3.8 WALKWAY INSTALLATION

    A. Flexible Walkways: Install walkway products around mechanical equipment. Heat weld to substrate or adhere walkway products to substrate with compatible adhesive according to roofing system manufacturer's written instructions.

    3.9 FIELD QUALITY CONTROL

    A. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to inspect roofing installation on completion.

    B. Repair or remove and replace components of roofing system where inspections indicate that they do not comply with specified requirements.

    C. Additional testing and inspecting, at Contractor's expense, will be performed to determine if replaced or additional work complies with specified requirements.

    3.10 PROTECTING AND CLEANING

    A. Protect roofing system from damage and wear during remainder of construction period. When remaining construction does not affect or endanger roofing, inspect roofing for deterioration and damage, describing its nature and extent in a written report, with copies to Architect and Owner.

    B. Correct deficiencies in or remove roofing system that does not comply with requirements, repair substrates, and repair or reinstall roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements.

    C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 11

    3.11 ROOFING INSTALLER'S WARRANTY

    A. WHEREAS _______________________________ of ___________________________, herein called the “Roofing Installer,” has performed roofing and associated work (“work”) on the following project:

    1. Owner: .

    2. Address: .

    3. Building Name/Type: .

    4. Address: .

    5. Area of Work: .

    6. Acceptance Date: _________________.

    7. Warranty Period: .

    8. Expiration Date: __________________.

    B. AND WHEREAS Roofing Installer has contracted (either directly with Owner or indirectly as a subcontractor) to warrant said work against leaks and faulty or defective materials and workmanship for designated Warranty Period,

    C. NOW THEREFORE Roofing Installer hereby warrants, subject to terms and conditions herein set forth, that during Warranty Period he will, at his own cost and expense, make or cause to be made such repairs to or replacements of said work as are necessary to correct faulty and defective work and as are necessary to maintain said work in a watertight condition.

    D. This Warranty is made subject to the following terms and conditions:

    1. Specifically excluded from this Warranty are damages to work and other parts of the building, and to building contents, caused by:

    a. lightning; b. peak gust wind speed exceeding ; c. fire; d. failure of roofing system substrate, including cracking, settlement, excessive

    deflection, deterioration, and decomposition; e. faulty construction of parapet walls, copings, chimneys, skylights, vents,

    equipment supports, and other edge conditions and penetrations of the work; f. vapor condensation on bottom of roofing; and g. activity on roofing by others, including construction contractors, maintenance

    personnel, other persons, and animals, whether authorized or unauthorized by Owner.

    2. When work has been damaged by any of foregoing causes, Warranty shall be null and void until such damage has been repaired by Roofing Installer and until cost and expense thereof have been paid by Owner or by another responsible party so designated.

    3. Roofing Installer is responsible for damage to work covered by this Warranty but is not liable for consequential damages to building or building contents resulting from leaks or faults or defects of work.

    4. During Warranty Period, if Owner allows alteration of work by anyone other than Roofing Installer, including cutting, patching, and maintenance in connection with penetrations, attachment of other work, and positioning of anything on roof, this Warranty shall become null and void on date of said alterations, but only to the extent said alterations affect work covered by this Warranty. If Owner engages Roofing Installer to perform said alterations, Warranty shall not become null and void unless

  • Rockbridge Regional Emergency Communications Center Rockbridge County, Virginia APN 550070

    THERMOPLASTIC POLYOLEFIN (TPO) ROOFING Addendum 1 – August 30, 2016

    075423 - 12

    Roofing Installer, before starting said work, shall have notified Owner in writing, showing reasonable cause for claim, that said alterations would likely damage or deteriorate work, thereby reasonably justifying a limitation or termination of this Warranty.

    5. During Warranty Period, if original use of roof is changed and it becomes used for, but was not originally specified for, a promenade, work deck, spray-cooled surface, flooded basin, or other use or service more severe than originally specified, this Warranty shall become null and void on date of said change, but only to the extent said change affects work covered by this Warranty.

    6. Owner shall promptly notify Roofing Installer of observed, known, or suspected leaks, defects, or deterioration and shall afford reasonable opportunity for Roofing Installer to inspect work and to examine evidence of such leaks, defects, or deterioration.

    7. This Warranty is recognized to be the only warranty of Roofing Installer on said work and shall not operate to restrict or cut off Owner from other remedies and resources lawfully available to Owner in cases of roofing failure. Specifically, this Warranty shall not operate to relieve Roofing Installer of responsibility for performance of original work according to requirements of the Contract Documents, regardless of whether Contract was a contract directly with Owner or a subcontract with Owner's General Contractor.

    E. IN WITNESS THEREOF, this instrument has been duly executed this ___________ day of ___________________, ________________.

    1. Authorized Signature: _______________________________________.

    2. Name: ______________________________________.

    3. Title: _______________________________________.

    END OF SECTION 075423

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 1

    SECTION 212200 - CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    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. This Section includes clean-agent extinguishing systems and the following:

    1. Piping and piping specialties. 2. Extinguishing-agent containers. 3. Extinguishing agent. 4. Detection and alarm devices. 5. Control and alarm panels. 6. Accessories. 7. Connection devices for and wiring between system components. 8. Connection devices for power and integration into building's fire alarm system.

    1.3 DEFINITIONS

    A. ATS: Acceptance Testing Specifications.

    B. EPO: Emergency Power Off.

    1.4 SYSTEM DESCRIPTION

    A. Clean-agent fire-extinguishing system shall be an engineered system for total flooding of the hazard area including the room cavity below the ceiling.

    1.5 PERFORMANCE REQUIREMENTS

    A. Design clean-agent extinguishing system and obtain approval from authorities having jurisdiction. Design system for Class A, B, or C fires as appropriate for areas being protected

    and include safety factor. Use clean agent indicated and in concentration suitable for normally

    occupied areas.

    B. Performance Requirements: Discharge HFC 227ea within 10 seconds and maintain 7.1 percent concentration by volume at 70 deg F for 10-minute holding time in hazard areas.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 2

    1. HFC 227ea concentration in hazard areas greater than 9.0 percent immediately after discharge or less than 5.8 percent throughout holding time will not be accepted without

    written authorization from Owner and authorities having jurisdiction.

    2. System Capabilities: Minimum 620-psig calculated working pressure and 360-psig initial charging pressure.

    C. Performance Requirements: Discharge IG-541 within 60 seconds and maintain 38 percent concentration by volume at 70 deg F for 10-minute holding time in hazard areas.

    1. IG-541 concentration in hazard areas greater than 40 percent immediately after discharge or less than 32 percent throughout holding time will not be accepted without written

    authorization from Owner and authorities having jurisdiction.

    2. System Capabilities: Minimum 2175-psig calculated working pressure upstream from orifice union, minimum 1000-psig calculated working pressure downstream from orifice

    union, and 2175-psig initial charging pressure.

    D. Verified Detection: Devices located in single zone. Sound alarm on activating single-detection device, and discharge extinguishing agent on actuating second-detection device.

    E. System Operating Sequence: As follows:

    1. Actuating First Detector: Visual indication on annunciator panel, energize audible alarm and visual alarms (slow pulse), shut down air-conditioning and ventilating systems

    serving protected area, close doors in protected area, and send signal to fire alarm system.

    2. Actuating Second Detector: Visual indication on annunciator panel, energize audible and visual alarms (fast pulse), shut down power to protected equipment, start time delay for

    extinguishing-agent discharge for 30 seconds, and discharge extinguishing agent.

    3. Extinguishing-agent discharge will operate audible alarms and strobe lights inside and outside the protected area.

    F. Manual stations shall immediately discharge extinguishing agent when activated.

    G. Operating abort switches will delay extinguishing-agent discharge while being activated, and switches must be reset to prevent agent discharge. Release of hand pressure on the switch will

    cause agent discharge if the time delay has expired.

    H. EPO: Will terminate power to protected equipment immediately on actuation.

    I. Low-Agent Pressure Switch: Initiate subervisory alarm if sensing less than set pressure.

    J. Power Transfer Switch: Transfer from normal to stand-by power source.

    1.6 SUBMITTALS

    A. Product Data: For the following:

    1. Extinguishing-agent containers. 2. Extinguishing agent. 3. Discharge nozzles.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 3

    4. Control panels. 5. Detection devices. 6. Manual stations. 7. Switches. 8. Alarm devices. 9. Pipe hangers and supports.

    B. Shop Drawings: Signed and sealed by a qualified professional engineer. Include design calculations. Include the following for hazard-area enclosure, drawn to scale:

    1. Plans, elevations, sections, details, and attachments to other work. Indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location

    and size of each field connection.

    2. Wiring Diagrams: Power, signal, and control wiring. 3. Design Calculations: For weight, volume, and concentration of extinguishing agent

    required for each hazard area.

    4. Reflected Ceiling Plans: Show ceiling penetrations, ceiling-mounted items, and the following:

    a. Extinguishing-agent containers, piping, discharge nozzles, detectors, and accessories.

    b. Method of attaching hangers to building structure. c. Other ceiling-mounted items including light fixtures, diffusers, grilles, speakers,

    sprinklers, and access panels.

    5. Occupied Work Area Plans: Show the following:

    a. Controls and alarms. b. Extinguishing-agent containers, piping and discharge nozzles if mounted in space,

    detectors, and accessories.

    c. Equipment and furnishings.

    6. Access Floor Space Plans: Show the following:

    a. Extinguishing-agent containers, piping, discharge nozzles, detectors, and accessories.

    b. Method of supporting piping.

    C. Nozzle Samples: Provide a sample of one nozzle for each type of nozzle indicated on the Working plans.

    D. Permit Approved Drawings: Working plans, prepared according to NFPA 2001, that have been approved by authorities having jurisdiction. Include design calculations.

    E. Field quality-control test reports.

    F. Maintenance Data: For components to include in maintenance manuals.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 4

    1.7 QUALITY ASSURANCE

    A. Professional Engineer Qualifications: Engineering services are defined as those performed for installations of clean-agent extinguishing systems that are similar to those indicated for this

    Project in material, design, and extent. System design shall be by a professional engineer

    registered in the state of Virginia or by a NICET Level III or Level IV technician.

    B. Product Options: Drawings indicate size, profiles, and dimensional requirements of clean-agent extinguishing systems and are based on the specific system indicated. Refer to Division 01

    Section "Product Requirements."

    C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for

    intended use.

    1.8 EXTRA MATERIALS

    A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. Deliver

    extra materials to Owner.

    1. Detection Devices: Not less than 20 percent of amount of each type installed. 2. Container Valves: Not less than 10 percent of amount of each size and type installed. 3. Nozzles: Not less than 20 percent of amount of each type installed. 4. Extinguishing Agent: Not less than 100 percent of amount installed in largest hazard

    area. Include pressure-rated containers with valves.

    PART 2 - PRODUCTS

    2.1 MANUFACTURERS

    A. In other Part 2 articles were titles below introduce lists, the following requirements apply to product selection:

    1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to,

    manufacturers specified.

    2. Manufacturers: Subject to compliance with requirements, provide products by one of the manufacturers specified.

    2.2 PIPING MATERIALS

    A. Refer to Part 3 piping applications Article retained for applications of pipe, tube, fitting, and joining materials.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 5

    B. Piping, Valves, and Discharge Nozzles: Comply with types and standards listed in NFPA 2001, Section "Distribution," for charging pressure of system.

    2.3 PIPE AND FITTINGS

    A. Steel Pipe: ASTM A 53/A 53M, Type S, Grade B or ASTM A 106, Grade B; Schedule 40, or Schedule 80, seamless steel pipe.

    1. Threaded Fittings:

    a. Malleable-Iron Fittings: ASME B16.3, Class 300. b. Flanges and Flanged Fittings: ASME B16.5, Class 300, unless Class 600 is

    indicated.

    2. Forged-Steel Welding Fittings: ASME B16.11, Class 3000, socket pattern. 3. Grooved-End Fittings: FMG approved and NRTL listed, ASTM A 47/A 47M malleable

    iron or ASTM A 536 ductile iron, with dimensions matching steel pipe and ends factory

    grooved according to AWWA C606.

    B. Pipe-Flange Gasket Materials: Suitable for chemical and thermal conditions of piping system contents.

    1. ASME B16.21, nonmetallic, flat, asbestos-free, 1/8-inch maximum thickness, unless thickness or specific material is indicated.

    C. Flange Bolts and Nuts: ASME B18.2.1, carbon steel.

    D. Brazing Filler Metals: AWS A5.8, BCuP Series, copper-phosphorus alloys for general-duty brazing.

    E. Welding Filler Metals: Comply with AWS D10.12 for welding materials appropriate for wall thickness and chemical analysis of steel pipe being welded.

    F. Steel, Keyed Couplings: UL 213, AWWA C606, approved or listed for clean-agent service, and matching steel-pipe dimensions. Include ASTM A 536, ductile-iron housing, rubber gasket, and

    steel bolts and nuts.

    2.4 VALVES

    A. General: Brass; suitable for intended operation.

    B. Container Valves: With rupture disc or solenoid and manual-release lever, capable of immediate and total agent discharge and suitable for intended flow capacity.

    C. Valves in Sections of Closed Piping and Manifolds: Fabricate to prevent entrapment of liquid, or install valve and separate pressure relief device.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 6

    D. Valves in Manifolds: Check valve; installed to prevent loss of extinguishing agent when container is removed from manifold.

    2.5 EXTINGUISHING-AGENT CONTAINERS

    A. Description: Steel tanks complying with ASME Boiler and Pressure Vessel Code: Section VIII, for unfired pressure vessels. Include minimum working-pressure rating that

    matches system charging pressure, valve, pressure switch, and pressure gage.

    1. Finish: Red, enamel or epoxy paint. 2. Manifold: Fabricate with valves, pressure switches, and connections for multiple storage

    containers, as indicated.

    3. Storage-Tank Brackets: Factory- or field-fabricated retaining brackets consisting of steel straps and channels; suitable for container support, maintenance, and tank refilling or

    replacement.

    2.6 FIRE-EXTINGUISHING CLEAN AGENT

    A. Clean Agent: HFC 227ea, heptafluoropropane

    1. Available Manufacturers:

    a. Fenwal, Inc.

    b. Fike, Inc.

    c. Argus Fire Control.

    B. Clean Agent: IG-541, mixture of nitrogen, argon, and carbon dioxide inert gases.

    1. Available Manufacturers:

    a. Ansul Incorporated.

    2.7 DISCHARGE NOZZLES

    A. Equipment manufacturer's standard one-piece brass or aluminum alloy of type, discharge pattern, and capacity required for application.

    2.8 MANIFOLD AND ORIFICE UNIONS

    A. Description: NRTL-listed device with minimum 2175-psig pressure rating, to control flow and reduce pressure of IG-541 gas in piping.

    1. NPS 2 and Smaller: Piping assembly with orifice, sized for system design requirements. 2. NPS 2-1/2 and Larger: Piping assembly with nipple, sized for system design

    requirements.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 7

    2.9 CONTROL PANELS

    A. Description: FMG approved or NRTL listed, including equipment and features required for testing, supervising, and operating fire-extinguishing system.

    B. Power Requirements: 120/240-V ac; with electrical contacts for connection to system components and fire alarm system, and transformer or rectifier as needed to produce power at

    voltage required for accessories and alarm devices.

    C. Enclosure: NEMA ICS 6, Type 1, enameled-steel cabinet.

    1. Mounting: Recessed.

    D. Supervised Circuits: Separate circuits for each independent hazard area.

    1. Detection circuits equal to the required number of zones, or addressable devices assigned to the required number of zones.

    2. Manual pull-station circuit. 3. Alarm circuit. 4. Release circuit. 5. Abort circuit. 6. EPO circuit.

    E. Provide the following control-panel features:

    1. Electrical contacts for shutting down fans, activating dampers, and operating system electrical devices.

    2. Automatic switchover to standby power at loss of primary power. 3. Storage container, low-pressure indicator. 4. Service disconnect to interrupt system operation for maintenance with visual status

    indication on the annunciator panel.

    F. Annunciator Panel: Graphic type showing protected, hazard-area plans and locations of detectors, abort, EPO, and manual stations. Include lamps to indicate device-initiating alarm,

    electrical contacts for connection to control panel, and stainless-steel or aluminum enclosure.

    G. Standby Power: Lead-acid or nickel-cadmium batteries with capacity to operate system for 72 hours and alarm for minimum of 15 minutes. Include automatic battery charger, with varying

    charging rate between trickle and high depending on battery voltage, that is capable of

    maintaining batteries fully charged. Include manual voltage control, dc voltmeter, dc ammeter,

    electrical contacts for connection to control panel, and suitable enclosure.

    2.10 DETECTION DEVICES

    A. Description: Comply with NFPA 2001 and NFPA 72, and include the following types:

    1. Ionization Detectors: Comply with UL 268, dual-chamber type, having sampling and referencing chambers, with smoke-sensing element.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 8

    2. Photoelectric Detectors: Comply with UL 268, consisting of LED light source and silicon photodiode receiving element.

    3. Remote Air-Sampling Detector System: Includes air-sampling pipe network, a laser-based photoelectric detector, a sample transport fan, and a control unit.

    a. Comply with UL 268 and NRTL listed, operating at 24-V dc, nominal. b. Pipe Network: CPVC tubing connects control unit with calibrated sampling holes. c. Smoke Detector: Particle-counting type with continuous laser beam. Sensitivity

    adjustable to a minimum of four preset values.

    d. Sample Transport Fan: Centrifugal type, creating a minimum static pressure of 0.05-inch wg at all sampling ports.

    e. Control Unit: Multizone unit as indicated on Drawings. Provides same system power supply, supervision, and alarm features as specified for the control panel

    plus separate trouble indication for airflow and detector problems.

    f. Signals to the Central Fire Alarm Control Panel: Any type of local system trouble is reported to the central fire alarm control panel as a composite "trouble" signal.

    Alarms on each system zone are individually reported to the central fire alarm

    control panel as separately identified zones.

    2.11 MANUAL STATIONS

    A. General Description: Surface FMG approved or NRTL listed, with clear plastic hinged cover, 120-V ac or low voltage compatible with controls. Include contacts for connection to control

    panel.

    B. Manual Release: "MANUAL RELEASE" caption, and red finish. Unit can manually discharge extinguishing agent with operating device that remains engaged until unlocked.

    C. Abort Switch: "ABORT" caption, momentary contact, with green finish.

    D. EPO Switch: "EPO" caption, with yellow finish.

    2.12 SWITCHES

    A. Description: FMG approved or NRTL listed, where available, 120-V ac or low voltage compatible with controls. Include contacts for connection to control panel.

    1. Low-Agent Pressure Switches: Pneumatic operation. 2. Power Transfer Switches: Key-operation selector, for transfer of release circuit signal

    from main supply to reserve supply.

    3. Door Closers: Magnetic retaining and release device or electrical interlock to cause the door operator to drive the door closed.

    2.13 ALARM DEVICES

    A. Description: FMG approved or NRTL listed, low voltage, and surface mounting, unless otherwise indicated.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 9

    B. Bells: Minimum 10-inch diameter.

    C. Horns: 90 to 94 dBA.

    D. Strobe Lights: Translucent lens, with "FIRE" or similar caption.

    2.14 ELECTRICAL POWER AND WIRING

    A. Electrical power, wiring, and devices are specified in Division 26.

    PART 3 - EXECUTION

    3.1 EXAMINATION

    A. Examine areas and conditions, with Installer present, for compliance with hazard-area leakage requirements, installation tolerances, and other conditions affecting work performance.

    1. Proceed with installation only after unsatisfactory conditions have been corrected.

    3.2 PIPING APPLICATIONS

    A. Flanged pipe and fittings and flanged joints may be used to connect to specialties and accessories and where required for maintenance.

    B. Fittings Working Pressure: 620 psig minimum.

    C. Flanged Joints: Class 300 minimum.

    D. NPS 2 and Smaller: Schedule 40, steel pipe; malleable-iron threaded fittings; and threaded joints.

    E. NPS 2-1/2 and NPS 3: Schedule 40, steel pipe; forged-steel welding fittings; and welded joints.

    3.3 PIPING APPLICATIONS

    A. Piping between Storage Containers and Orifice Union:

    1. Flanged pipe and fittings and flanged joints may be used to connect to specialties and accessories and where required for maintenance.

    2. Fittings Working Pressure: 2175 psig minimum. 3. Flanged Joints: Class 600 minimum. 4. All Sizes: Schedule 80, steel pipe; forged-steel welding fittings; and welded joints.

    B. Piping Downstream from Orifice Union:

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 10

    1. Flanged pipe and fittings and flanged joints may be used to connect to specialties and accessories and where required for maintenance.

    2. Fittings Working Pressure: 1000 psig minimum. 3. Flanged Joints: Class 300 minimum. 4. All Sizes: Schedule 40, steel pipe; forged-steel welding fittings; and welded joints.

    3.4 CLEAN-AGENT EXTINGUISHING PIPING INSTALLATION

    A. Install clean-agent extinguishing piping and other components level and plumb and according to manufacturers' written instructions.

    B. Refer to Division 21 Section "Common Work Results for Fire Suppression" for basic pipe installation and joint construction.

    C. Grooved Piping Joints: Groove pipe ends according to AWWA C606 dimensions. Assemble grooved-end steel pipe and steel, grooved-end fittings with steel, keyed couplings and lubricant

    according to manufacturer's written instructions.

    D. Install extinguishing-agent containers anchored to substrate.

    E. Install pipe and fittings, valves, and discharge nozzles according to requirements listed in NFPA 2001, Section "Distribution," and in ASME B31.1.

    1. Install valves designed to prevent entrapment of liquid or install pressure relief devices in valved sections of piping systems.

    2. Support piping using supports and methods according to NFPA 13. 3. Install control panels, detection system components, alarms, and accessories, complying

    with requirements of NFPA 2001, Section "Detection, Actuation, and Control Systems,"

    as required for supervised system application.

    3.5 CONNECTIONS

    A. Drawings indicate general arrangement of piping, fittings, and specialties.

    B. Install piping adjacent to extinguishing-agent containers to allow service and maintenance.

    C. Connect electrical devices to control panel and to building's fire alarm system. Electrical power, wiring, and devices are specified in Division 28 Section "Fire Detection and Alarm."

    3.6 LABELING

    A. Install labeling on piping, extinguishing-agent containers, other equipment, and panels according to NFPA 2001.

    B. Install signs at entry doors for protected areas to warn occupants that they are entering a room protected with a clean-agent fire extinguishing system.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 11

    C. Install signs at entry doors to advise persons outside the room the meaning of the horn(s), bell(s), and strobe light(s) outside the protected space.

    3.7 FIELD QUALITY CONTROL

    A. Comply with operating instructions and procedures of NFPA 2001, Section "Approval of Installations." Include the following tests and inspections to demonstrate compliance with

    requirements:

    1. Check mechanical items. 2. Inspect extinguishing-agent containers and extinguishing agent, and check mountings for

    adequate anchoring to substrate.

    3. Check electrical systems. 4. Check enclosure integrity. Comply with NFPA 2001, Section "Enclosure Inspection,"

    and Appendix C, "Enclosure Integrity Procedure."

    5. Perform functional pre-discharge test. 6. Perform system functional operational test including, EPO, abort, and manual release. 7. Check remote monitoring operations. 8. Check control-panel primary power source. 9. Perform "puff" test on piping system, using nitrogen.

    B. Perform field-acceptance tests of each clean-agent extinguishing system when installation is complete. Perform system testing only after hazard-area enclosure construction has been

    completed and openings sealed. Comply with operating instructions and procedures of

    NFPA 2001, Section "Approval of Installations." Include the following to demonstrate

    compliance with requirements:

    1. Perform functional predischarge test. 2. Perform system functional operational test. 3. Check remote monitoring operations. 4. Check control-panel primary power source. 5. Perform "puff" test on piping system, using nitrogen.

    C. Correct malfunctioning equipment, then retest to demonstrate compliance. Replace equipment that cannot be corrected or does not perform as specified and indicated, then retest to

    demonstrate compliance. Repeat procedure until satisfactory results are obtained.

    1. Report test results promptly and in writing to Architect and authorities having jurisdiction.

    D. Perform the following field tests and inspections and prepare test reports:

    1. After installing clean-agent extinguishing piping system and after electrical circuitry has been energized, test for compliance with requirements.

    2. Perform each electrical test and visual and mechanical inspection stated in NETA ATS, Sections "Inspection and Test Procedures" and "System Function Tests." Certify

    compliance with test parameters.

    3. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no leaks exist.

  • Rockbridge Regional Emergency Communications Center

    Rockbridge County, Virginia

    APN 550070

    CLEAN-AGENT FIRE EXTINGUISHING SYSTEMS

    Addendum 1 – August 30, 2016 212200 - 12

    4. Operational Test: After electrical circuitry has been energized, start units to confirm proper motor rotation and unit operation. Remove malfunctioning units, replace with

    new units, and retest.

    5. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

    E. Remove and replace malfunctioning units and retest as specified above.

    3.8 CLEANING

    A. Each pipe section shall be cleaned internally after preparation and before assembly by means of swabbing, using a suitable nonflammable cleaner. Pipe network shall be free of particulate

    matter and oil residue before installing nozzles or discharge devices.

    3.9 SYSTEM FILLING

    A. Preparation:

    1. Verify that piping system installation is completed and cleaned. 2. Check for complete enclosure integrity. 3. Check operation of ventilation and exhaust systems.

    B. Filling Procedures:

    1. Fill extinguishing-agent containers with extinguishing agent and pressurize to indicated charging pressure.

    2. Install filled extinguishing-agent containers. 3. Energize circuits. 4. Adjust operating controls.

    3.10 DEMONSTRATION

    A. Train Owner's maintenance personnel to adjust, operate, and maintain clean-agent extinguishing systems. Refer to Division 01 Section "Demonstration and Training."

    END OF SECTION 212200

  • 0' 8'4' 16'2'

    1/8" = 1'-0"

    1

    2

    33

    7

    7

    8

    88

    10

    10

    10

    8

    4

    44

    4

    10

    7

    10

    REMOVE AND SALVAGEFOR REINSTALLATION

    REPRESENTED BY n

    APPLIES TO DRAWINGS A1.1

    abjlifqflk=hbvklqbp

    1. NOT USED

    2. REMOVE OVERHEAD DOOR

    3. REMOVE CASEWORK

    4. REMOVE EXISTING FLOOR FINISHES, ASSOCIATED BASE, SETTING BEDS, AND ADHESIVESUNLESS INDICATED OTHERWISE.

    5. REMOVE EXISTING BASE TRIM, DOOR CASING, GYPSUM BOARD AND ACCESSORIES ASREQUIRED TO REMOVE GYPSUM BOARD FULL HEIGHT THROUGHOUT THIS SPACE. STUDS TOREMAIN.

    6. REMOVE AND REINSTALL CEILING SYSTEM AS REQUIRED TO ACCOMODATE GYPSUMBOARD REMOVAL/REPLACEMENT AND OTHER ABOVE CEILING WORK.

    7. REMOVE GYPSUM WALL BOARD FROM EXISTING CEILING

    8. REMOVE CEILING THROUGHOUT THIS SPACE

    9. REMOVE AND REINSTALL CEILING SYSTEM THROUGHOUT THIS SPACE.

    10. REMOVE ACOUSTIC CEILING PANELS

    1

    1

    1

    3

    3

    ADDENDUM1

    ADDENDUM1

    dvmprj=_l^oa=e^w^oalrp=j^qbof^ip=^_^qbjbkq=ibdbka

    ADDITIVE ALTERNATE 1 - REMOVE GYPSUMWALL BOARD FULL HEIGHT INCLUDING BASETRIM, DOOR CASING, AND ACCESSORIES ASREQUIRED.

    REMOVE ALL EXISTING GYPSUM WALL BOARDFULL HEIGHT INCLUDING BASE TRIM, DOORCASING, AND ACCESSORIES AS REQUIRED.TEMPORARILY REMOVE CEILING SYSTEM ASREQUIRED TO ACCOMODATE THIS WORK

    NOTE: REFER TO "ASBESTOS ABATEMENT PROJECT DESIGN" FOR REMOVALOF ALL GYPSUM BOARD ASSEMBLIES

    REPRESENTED BY n

    APPLIES TO DRAWINGS A1.1

    dvmpvj=_l^oa=e^w^oalrp=j^qbof^ip=^_^qbjbkq=hbvklqbp

    1. REMOVE CEILING SYSTEM AS REQUIRED TO ACCOMODATE GYPSUM BOARDREMOVAL/REPLACEMENT AND OTHER ABOVE CEILING WORK. SALVAGE FORREINSTALLATION.

    2. REINTSALL CEILING SYSTEM AS REQUIRED TO ACCOMODATE GYPSUM BOARDREMOVAL/REPLACEMENT AND OTHER ABOVE CEILING WORK.

    3. REMOVE / ABATE GYPSUM CEILING SYSTEM

    ADDENDUM1

    ^o`efqb`qp

    POMM=kloclih=pqobbqI=of`ejlkaI=s^=OPOPM

    melkb=EUMQF=TVQJTRRR===c^u=EUMQF=PRRJRSVM

    jlpbibv

    K`lj

    PROJECT NO: DATE:

    ULPMLOMNS=NOWQOWPQ=mj

    abjlifqflk=mi^k

    ^ka=e^w^oalrp

    j^qbof^ip

    fkcloj^qflk

    ol`h_ofadb=`

    lrkqv

    ol`h_ofadb=obdfl

    k^i=bjbodbk`v

    `ljjrkf`

    ^qflkp=`

    bkqbo

    ^NKN

    550070 July 29, 2016

    1/8" = 1'-0"

    abjlifqflk=cfopq=cillo=mi^k

    abjlifqflk=mi^k=ibdbkaAPPLIES TO DRAWINGS A1.1

    EXISTING PARTITION/ WALL/ ITEM TO REMAIN

    EXISTING PARTITION/ WALL/ ITEM TO BE REMOVED;PREPARE ADJACENT SURFACES TO RECEIVE NEWWORK

    REMOVE EXISTING WINDOW ASSEMBLY INCLUDINGGLASS, FRAME, HARDWARE, SEALANT, TRANSOM,PANELS, RAILS, ETC.

    REMOVE EXISTING DOOR AND FRAME ASSEMBLYINCLUDING DOOR HARDWARE, ANCHORS, ANDTHRESHOLD (WHERE OCCURS).

    abjlifqflk=mi^k=dbkbo^i=klqbp

    A. REFER TO "ASBESTOS ABATEMENT PROJECT DESIGN" FOR ABATEMENT OF ALLGYPSUM BOARD ASSEMBLIES

    B. REMOVE EXISTING FLOOR FINISHES, ASSOCIATED BASE, SETTING BEDS, FROMALL AREAS INDICATED TO RECEIVE FLOOR FINISHES - REFER TO FINISHSCHEDULE

    FUTURE WORK (NOT IN CONTRACT) UNLESSINDICATED OTHERWISE - NOTE THAT ALL WORKASSOCIATED WITH THE PERIMETER WALLREINFORCEMENT, INCLUDING BUT NOT LIMITEDTO GYP BOARD REMOVAL AND HAZARDOUSMATERIALS ABATEMENT IS INCLUDED WITHTHIS CONTRACT, REFER TO S2.1 FOR WALLREINFORCEMENT LOCATIONS

    1/16" = 1'-0"

    dvmprj=_l^oa=e^w^oalrp=j^qbof^ip=^_^qbjbkq=abjlifqflk=mi^k

    REVISIONS

    DATE DESCRIPTION

    08/30/16 ADDENDUM 1

    ADDENDUM1

    ADDENDUM1

    550070 Addendum Text075423-TPO ROOFING212200 FM-200 Clean-Agent Fire Extinguishing Systems550070_A1.1 DEMOLITION PLAN AND HAZARDOUS MATERIALS INFORMATIONSheetsA1.1 - DEMOLITION PLAN AND HAZARDOUS MATERIALS INFORMATION