ENTRANCE BUILDING ROOF REPLACEMENT PROJECT # AS-1

Transcription

1 PROJECT FOR ENTRANCE BUILDING ROOF REPLACEMENT PROJECT # AS Museum Lane Titusville, PA Venango County, Pennsylvania COMMONWEALTH OF PENNSYLVANIA TOM WOLF, GOVERNOR PENNSYLVANIA HISTORICAL AND MUSEUM COMMISSION ANDREW E. MASICH, CHAIRMAN JAMES M. VAUGHAN, EXCUTIVE DIRECTOR BUREAU OF HISTORIC SITES AND MUSEUMS DIVISION OF ARCHITECTURE AND PRESERVATION 400 NORTH ST, ROOM N118 HARRISBURG, PENNSYLVANIA April 2015

2 TABLE OF CONTENTS SECTION DESCRIPTION SECTION SECTION GENERAL REQUIRMENTS THERMOPLASTIC POLYOLEFIN ROOFING DRAWINGS COVER SHEET SHEET NO. CS.1 ROOF PLAN A1.1 Drake Well Museum Table of Contents

3 Rev. 3/15 - SRM SECTION GENERAL REQUIREMENTS 1.1 SCOPE OF THE WORK A. The project consists of removal of EPDM roofing membrane, insulation and fiber board to concrete deck and installation on 3.5 rigid insulation and TPO roofing membrane. Also, new roof drains, new flashing and new aluminum fascias will be included. B. Project Manager: David Simpson Phone Number: davisimpso@pa.gov C. Site Contact: Bryan Phenocie Phone Number: D. Detailed requirements of the Work are described in Specification Sections which follow. 1.2 ISSUING OFFICE A. Pam Roche Fiscal & Office Support Services Bureau of Management Services PA Historical & Museum Commission State Museum of PA, 300 North Street, Room 529 Harrisburg, PA Telephone proche@pa.gov 1.3 INVITATION FOR BID (IFB) INFORMATION A. Responses to this bid will only be accepted electronically. You must go to to complete this bid. 1.4 PRE-BID MEETING A. Date: A mandatory pre-bid meeting will be held on May 7, 2015, 11:00 am. B. Location: Drake Well Museum, conference room. C. It is highly recommended that either you or a representative of your firm attend the pre-bid meeting to inspect the work areas and ask questions prior to submitting a bid. The pre-bid conference is for information only. Any answers furnished during the conference will not be official until they have been verified, in writing, by the Issuing Office. The pre-bid questions and answers will be posted to (click on Solicitations, enter Solicitation #, click on search ). If your company would like to visit the site to obtain further information (after the pre-bid meeting), call the site contact listed above for an appointment. 1.5 BID QUESTIONS A. Technical or project work related questions will be received in writing by the Project Manager (PM). Questions related to bidding or contracting procedures should be addressed to the Issuing Office. All questions must be received 10 calendar days prior to the bid due date and time. Answers to all questions Drake Well Museum General Requirements

4 Rev. 3/15 - SRM and/or formal addendums will be posted to (click on Solicitations, enter Solicitation #, click on search ) 7 calendar days prior to the bid due date and time. No other questions will be permitted after this date. All questions and answers will become an addendum to the IFB. The issuing office shall not be bound by any verbal information nor shall it be bound by any written information that is not either contained within the IFB or formally issued as an addendum by the issuing office. B. If the Issuing Office deems it necessary to revise any part of this bid before the bid due date, revisions will be posted to (click on Solicitations, enter Solicitation #, click on search ).It is the potential vendor s responsibility to periodically check the website for any new or revised bid information or addenda prior to submission of the bid. If a bid bulletin has been issued, bidder must print the bulletin, sign and return the bulletin as part of the bid package. C. Bid results will be posted to within 24 hours of bid opening. 1.6 WORK IN AND AROUND HISTORIC BUILDINGS A. Work is on a building and/or site of state or national historic significance. Take special care to avoid damage to any portion of the building, its contents, and its surrounding site. B. Comply with the Secretary of the Interior's Standards for The Treatment of Historic Properties as applicable. (Please contact the Project Manager for a copy if you do not have one.) C. Inform the Project Manager at least 48 hours prior to any excavation. The Project Manager, Site Administrator, and/or the Commission Archaeologist must be present at the time of excavation to monitor for buried cultural deposits and shall have the right to stop the Work for a period of time, not to exceed 5 business days, to perform mitigation archaeology at no additional expense. 1.7 CONTRACTOR USE OF PREMISES/ACCESS/WORKING HOURS A. Coordinate access to the site, delivery and storage of materials, parking and working hours with the Project Manager. B. Limit use of premises to allow normal operation of site and use of premises by public. C. Complete all Work between the hours of 7:30 am - 4:30 pm, Monday through Friday, or as determined at the initial job conference. D. Do not alter Work schedule without prior approval of the Project Manager and/or Site Administrator. E. Use existing on-site roads for construction traffic. F. Use on-site parking areas designated by the Site Contact, for construction personnel. G. Contractor will be on-site during all project work periods, including periods of all sub-contractor work, unless otherwise agreed upon by Project Manager. 1.8 PROTECTION OF THE ENVIRONMENT A. Provide for the prevention, control and abatement of land, water and air pollution in accordance with P.L. No. 247, Act. No. 247, dated October 26, 1972 which shall include but not be limited to: 1. The prohibition of burning of all refuse. 2. The removal of all refuse from site of work for disposal in accordance with rules and regulations of authority having jurisdiction over the disposal area. 3. Providing for filtration of all contaminated water discharging directly into a stream. Drake Well Museum General Requirements

5 Rev. 3/15 - SRM 4. Should asbestos material be encountered on the job, compliance with all statutes and regulations of the Commonwealth of Pennsylvania and all rules and regulations of the United States Environmental Protection Agency as they pertain to the emission of asbestos into the air during construction and demolition work and the disposal of material asbestos. Particular attention is drawn to Code of Federal Regulations, Title 40, Part 61, Section 112 of Clean Air Act. 5. Full compliance with the regulations of OSHA as they pertain to the protection of workers exposed to the emission of asbestos fibers and lead and take all steps necessary to protect employees, as well as all other people engaged in the building, from exposure to lead and asbestos fibers resulting from the work. 6. Full compliance with any required permitting (including obtaining required permitting), as directed by the Bureau of Air Quality Control at the Department of Environmental Resources regional office whenever asbestos material or lead is to be removed or disposed. 1.9 GUARANTEE A. Guarantee all materials, equipment and workmanship for a period of one year following the Final Inspection, in addition to any warranty specified. Within that period, correct all defects in the Work at no cost to the Commission PROJECT SIGN A. Post no sign unless approved by Project Manager PERMITS, LICENSES AND CERTIFICATES A. Secure all required approvals, permits, licenses or certificates. Provide one copy of each to the Project Manager. NOTE: Because the work of this project is on Commonwealth-owned property, and as stipulated in Act 45 - the Uniform Construction Code (UCC), project reviews, building permits and certificates of occupancy will all be obtained only from the Pennsylvania Department of Labor and Industry. Townships, Counties and/or local jurisdictions do not have the authority to review and issue these documents for this project. As a result of the project review process, and in conformance with Act 45, the PHMC will obtain the project building permit as required COORDINATION A. Coordinate scheduling, submittals and Work of the drawings and specifications for efficient and orderly sequence of installation of all construction materials FIELD ENGINEERING A. Locate and protect utilities. Utility locations shown on drawings are approximate. Verify locations before proceeding with the Work. Pursuant to the Pennsylvania One Call System, (811), call not less than three days prior to commencing excavation work. B. Verify all dimensions and conditions in the field. No additional compensation will be provided for inaccuracies in the dimensions or conditions shown on the Drawings CUTTING AND PATCHING A. Employ a skilled and experienced installer to perform all cutting and patching required to complete the Work, including any removal of existing materials and equipment and installation of new Work, to the satisfaction of the Project Manager; restore Work with new materials to match that being cut. Drake Well Museum General Requirements

6 Rev. 3/15 - SRM B. Fit Work tight to adjacent materials. Maintain weather-tightness/integrity of existing conditions; completely seal voids. Patch any fire wall penetrations with fire stop material to meet fire rating of wall being penetrated. C. Refinish surfaces to match adjacent finishes. D. Obtain prior acceptance by Project Manager for any extensive cutting CONFERENCES A. Project Manager will schedule an Initial Job Conference after execution of the Contract and notice is provided to the Project Manager that the Contractor has obtained his/her performance bond and certificates of insurance, with all people involved (see 1.10 above and 1.37 below). B. Project Manager will schedule a Final Inspection Job Conference with all people involved SUBMITTAL PROCEDURES A. At the Initial Job Conference, submit a complete list of major Products proposed for use. Use the attached Submittal Cover Sheet to identify the Project, Contractor, Subcontractor or supplier, Products, models, options, other information and any references to the Drawings and Specifications. Sign to certify that you have reviewed and verified that the Products, field dimensions, adjacent construction Work, and coordination of information meet the requirements of the Work and the Drawings and Specifications. B. Revise and resubmit submittals if required by Project Manager; note all changes made from previous submittal. C. Submit three (3) copies to the Project Manager. D. Submit samples as required to show function and appearance of the Product for acceptance by the Project Manager. E. Submit Requests for Information (RFI) to Project Manager to allow a 48 hour response time, unless otherwise modified by Project Manager. No RFI-subject work will be performed prior to a response from the Project Manager MANUFACTURERS' INSTRUCTIONS/CERTIFICATES A. When listed in individual specification Sections, submit two copies of manufacturers' printed instructions for delivery, storage, assembly, installation, and finishing. B. When listed in individual specification Sections, submit two copies of manufacturers' certificate to Project Manager for review. C. Show that Product meets or exceeds Specifications. Submit supporting reference information and certifications as appropriate PHOTOGRAPHS A. CONSTRUCTION PHOTOGRAPHS N/A 1.19 RECORD DRAWINGS AS-BUILT DRAWINGS N/A 1.20 QUALITY ASSURANCE/CONTROL OF INSTALLATION Drake Well Museum General Requirements

7 Rev. 3/15 - SRM A. Monitor quality of Products, services, site conditions, and workmanship, to produce Work of specified quality. B. Comply fully with manufacturers' instructions. If manufacturers' instructions do not agree with Drawings and Specifications, ask direction from Project Manager before proceeding. C. Comply with specified standards as a minimum quality for the Work except when tolerances, codes, or Specifications require higher standards or more quality workmanship. D. Meet specified standard current as of Bid Opening date. Should specified standard conflict with Drawings and Specifications, ask direction from Project Manager before proceeding. E. Use only craftsmen who are highly skilled in their respective trade. Execute all work with the highest quality to meet or exceed the description and/or standard as specified for the Work. The Commission retains the right to remove from the project any employee of the contractor or subcontractor that does not show conformance to the standard of the Work TEMPORARY SANITARY FACILITIES A. Existing site facilities may be used with the concurrence of the Site Contact. B. Maintain existing site facilities daily in clean and sanitary condition TEMPORARY SERVICES DURING CONSTRUCTION A. Make temporary connections to existing service lines in locations as directed by the Project Manager for electric light and power, temporary heat, and water for construction. B. Employ skilled craftspersons to repair any damage to historic building fabric. C. Maintain all services to, through and within the occupied areas of the building at all times. Schedule at the convenience of the Commission, and obtain written approval by the Project Manager, for any required interruption ten (10) days prior to the interruption of any service PROTECTION A. Erect barriers, barricades, signs, red plastic construction fencing and other protective devices as required to prevent unauthorized entry to construction areas and to protect existing facilities, historic building materials, Commission personnel, visiting public and adjacent properties from damage or injury. B. Repair, at no cost to the Commission, any areas of existing buildings, contents, landscaping, paving or other site features damaged during the Work to the satisfaction of the Project Manager. This building contains important historical collections and/or finishes. If damage occurs to these collections and/or finishes as a result of the Work, hire a Conservator, from a list supplied by the Commission, to do an assessment of the damage and conservation measures required at no expense to the Commission. Upon acceptance by the Commission of the Conservator s assessment report, arrange for the Conservator to perform those conservation measures on the damaged objects and/or finishes at no cost to the Commission. C. Use caution when working directly adjacent to and on existing structures, particularly those that are historic. Provide all necessary shoring, bracing and temporary support to ensure that all existing walls, roofs, floors, and miscellaneous features remain structurally sound and are neither damaged nor moved during the Work. Provide a plan for this work for acceptance by the Project Manager prior to proceeding. D. Provide a UL listed fire extinguisher at the construction site during the Work, suitable for all types of fires PROGRESS CLEANING A. Keep site clean and orderly, free of waste materials, construction-related debris, and rubbish. Provide Drake Well Museum General Requirements

8 Rev. 3/15 - SRM thorough cleaning of the site daily. B. Use of chute and dumpster is allowed. Location of dumpster or vehicles on site shall be determined by Project Manager PRODUCTS A. Products and Equipment: All materials and misc. equip. for a complete installation. B. Do not use materials removed from site, except as specifically identified or allowed by the Drawings and Specifications, or as directed by the Project Manager. Store any materials designated by the Project Manager for salvage by the Commission at a location on site designated by the Site Administrator. C. Use only those Products that meet Specified Standards or Description. D. Submit a request for substitution for any manufacturer not named. E. In all cases where a device or part of the Products or equipment is herein referred, it shall apply to as many such items as are required to complete the installation TRANSPORTATION, HANDLING, STORAGE AND PROTECTION A. Transport, handle, store and protect Products in accordance with manufacturer's instructions. B. Deliver products to the site in unbroken rolls, bundles, sealed containers or bags, fully identified with the manufacturer's name, brand, type and grade CONTRACT INVOICING AND CLOSEOUT PROCEDURES A. Upon notification of award, submit a payment schedule to the project manager for approval. The payment schedule shall include a separate line item for each invoice you intend to submit. Line items shall be based on work tasks and not on the percentage of work completed. B. Proper partial and final invoices will only be processed for completed work based on the approved payment schedule (line items), and the inspection and acceptance of the work by the Project Manager. C. Submit all invoices to the Bill To address on your purchase order. Invoices must be invoiced by line item listed on the purchase order. Invoices must include the purchase order number. Failure to provide the purchase order number on your invoice will result in a delay of your payment. D. Prior to submission of your final invoice, certify in writing that you have reviewed the drawings and Specifications, inspected the wok, completed the work as specified and are ready for final inspection by the Project Manager. E.. Final acceptance of the work may be subject to a final inspection by representatives of the Department of General Services FINAL CLEANING A. Do final cleaning prior to Final Inspection. B. Clean debris from site. C. Remove all Work-related waste, surplus and demolished materials, rubbish, and construction facilities from the site. D. See technical specifications for additional final cleaning procedures SPARE PARTS AND MAINTENANCE MATERIALS Drake Well Museum General Requirements

9 Rev. 3/15 - SRM A. Provide Products, spare parts and maintenance materials in quantities specified in individual Specification sections. B. Deliver to Project site and place in location as directed by Project Manager; obtain receipt prior to final inspection EXPLANATION OF BASE BIDS A. Base Bid #1 shall include all work as described in these specifications and shown on the drawings UNIT PRICES A. N/A 1.39 TERM OF PURCHASE ORDER and PROJECT A. The terms of the purchase order will commence on the Effective Date which is listed on the purchase order. The contractor shall not start the performance of any work prior to the Effective Date of the purchase Order and the Commonwealth shall not be liable to pay the selected contractor for any service or work performed or expenses incurred before the Effective Date of the purchase order. The contract and project dates are listed in the purchase order text. The Commonwealth has the option to extend the contract and/or project periods in accordance with the Standard Contract Terms and Conditions for Services. The Project Manager will determine if extensions are in the best interest of the Commonwealth CONTRACTOR PERFORMANCE EVALUATION A. An evaluation of the Contractor's project performance will be conducted by the Project Manager at the conclusion of the project. The evaluation will address Contractor's timeliness and quality of work, sensitivity to requirements of project and sensitivity to overall site operations. B. The evaluation will be placed in the PHMC files for future reference relative to future project opportunities. END OF SECTION Drake Well Museum General Requirements

10 SUBMITTAL COVER SHEET (Attach to each copy of each submittal) PROJECT NAME & NUMBER: Roof Replacement Drake Well Museum - # AS-1 ARCHITECT: Pennsylvania Historical and Museum Commission David S. Simpson ENGINEER: PRIME CONTRACTOR: SUBCONTRACTOR/SUPPLIER: MANUFACTURER: ITEM SUBMITTED: SUBMITTAL NO. SPECIFICATION SECTION NO.. DRAWING REFERENCE DETAIL NO. CERTIFICATION: (Circle One) A. Certified to comply with Drawings and Specifications. B. Certified to comply with Drawings and Specifications except as noted on Contractor attachment(s) Signature: Subcontractor/Supplier Date Signature: Prime Contractor Date Contractor s Action Stamp Here Architect s Action Stamp Here Drake Well Museum Submittal Cover Sheet

11 SECTION THERMOPLASTIC POLYOLEFIN (TPO) ROOFING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Adhered TPO membrane roofing system. 2. Roof insulation. 1.3 DEFINITIONS A. TPO: Thermoplastic polyolefin. B. Roofing Terminology: See ASTM D 1079 and glossary in NRCA's "The NRCA Roofing and Waterproofing Manual" for definitions of terms related to roofing work in this Section. 1.4 PERFORMANCE REQUIREMENTS A. General Performance: Installed membrane roofing and base flashings shall withstand uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Membrane roofing and base flashings shall remain watertight. B. Material Compatibility: Provide roofing materials that are compatible with one another under conditions of service and application required, as demonstrated by membrane 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 Wind speed, 90 mph; exposure B. 1.5 ACTION SUBMITTALS A. Product Data: For each type of product indicated. Drake Well Museum Thermoplastic Polyolefin Roofing

12 B. Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other work. 1. Base flashings and membrane terminations. 2. Tapered insulation, including slopes. C. Samples for Verification: For the following products: 1. Sheet roofing, of color specified, including T-shaped side and end lap seam. 2. Roof insulation. 3. Metal termination bars. 1.6 INFORMATIONAL SUBMITTALS A. Qualification Data: For qualified Installer and manufacturer. B. 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. C. Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and witnessed by a qualified testing agency, for components of membrane roofing system. D. Field quality-control reports. E. Warranties: Sample of special warranties. 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 membrane roofing system identical to that used for this Project. B. Installer Qualifications: A qualified firm that is approved, authorized, or licensed by membrane roofing system manufacturer to install manufacturer's product and that is eligible to receive manufacturer's special warranty. C. Source Limitations: Obtain components including roof insulation, fasteners for membrane roofing system from same manufacturer as membrane roofing or approved by membrane roofing manufacturer. D. Exterior Fire-Test Exposure: ASTM E 108, Class A; for application and roof slopes indicated, as determined by testing identical membrane roofing materials by a qualified Drake Well Museum Thermoplastic Polyolefin Roofing

13 testing agency. Materials shall be identified with appropriate markings of applicable testing agency. E. Preliminary Roofing Conference: Before starting roof deck construction, conduct conference at Project site. 1. Meet with Owner, Architect,Owner's insurer if applicable, roofing Installer, roofing system manufacturer's representative, 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. Review deck substrate requirements for conditions and finishes, 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 will affect 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. F. Preinstallation Roofing Conference: Conduct conference at Project site. 1. Meet with Owner, Architect, Owner's insurer if applicable, roofing Installer, roofing system manufacturer's representative, 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 will affect 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. Drake Well Museum Thermoplastic Polyolefin Roofing

14 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. 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 PROJECT 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 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 membrane roofing, base flashings, roof insulation and adherence method and other components of membrane 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 membrane roofing system such as membrane roofing, base flashing, roof insulation, fasteners and walkway products, for the following warranty period: 1. Warranty Period: One year from date of Substantial Completion. Drake Well Museum Thermoplastic Polyolefin Roofing

15 PART 2 - PRODUCTS 2.1 TPO MEMBRANE ROOFING A. Fabric-Reinforced Thermoplastic Polyolefin Sheet: ASTM D 6878, internally fabric or scrim reinforced, uniform, flexible fabric backed TPO sheet. 1. 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. Ultraply TPO - Firestone Building Products Company. b. Approved equal 2. Thickness: 60 mils, nominal. 3. Exposed Face Color: White. 2.2 AUXILIARY MEMBRANE ROOFING MATERIALS A. General: Auxiliary membrane roofing materials recommended by roofing system manufacturer for intended use, and compatible with membrane roofing. 1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction. B. Sheet Flashing: Manufacturer's standard unreinforced thermoplastic polyolefin sheet flashing, 60 mils thick, minimum, of same color as sheet membrane. 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; with anchors. E. Metal Battens: Manufacturer's standard, aluminum-zinc-alloy-coated or zinc-coated steel sheet, approximately 1 inch wide by 0.05 inch thick, prepunched. F. Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening membrane to substrate, and acceptable to membrane roofing system manufacturer. G. 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. Drake Well Museum Thermoplastic Polyolefin Roofing

16 2.3 ROOF INSULATION A. General: Preformed roof insulation boards manufactured or approved by TPO membrane roofing manufacturer, selected from manufacturer's standard sizes suitable for application, of thicknesses indicated. B. Polyisocyanurate Board Insulation: ASTM C 1289, Type II, Class 1, Grade 2, felt or glass-fiber mat facer on both major surfaces. 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. 2.4 INSULATION ACCESSORIES A. General: Furnish roof insulation accessories recommended by insulation manufacturer for intended use and compatibility with membrane roofing. B. Bead-Applied Insulation Adhesive: Insulation manufacturer's recommended beadapplied, low-rise, one- or multicomponent urethane adhesive formulated to attach roof insulation to substrate or to another insulation layer. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, with Installer present, for compliance with the following requirements and other conditions affecting performance of roofing system: 1. Verify that roof openings and penetrations are in place and curbs are set and braced and that 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. 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. Drake Well Museum Thermoplastic Polyolefin Roofing

17 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. C. 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. 3.3 INSULATION INSTALLATION A. Coordinate installing membrane roofing system components so insulation is not exposed to precipitation or left exposed at the end of the workday. B. Comply with membrane roofing system and insulation manufacturer's written instructions for installing roof insulation. C. Install tapered insulation under area of roofing to conform to slopes indicated, unless noted otherwise. D. Install insulation under area of roofing to achieve required thickness. Where overall insulation thickness is 3.5 inches or greater, install two or more layers with joints of each succeeding layer staggered from joints of previous layer a minimum of 6 inches in each direction. E. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not restrict flow of water. F. 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. 1. Cut and fit insulation within 1/4 inch of nailers, projections, and penetrations. G. Adhered Insulation: Adhere each layer of insulation to existing concrete deck. 1. Adhere first layer of insulation to resist uplift pressure at corners, perimeter, and field of roof. 2. Set each subsequent layer of insulation in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining insulation in place. 3.4 ADHERED MEMBRANE ROOFING INSTALLATION A. Adhere membrane roofing over area to receive roofing and install according to membrane roofing system manufacturer's written instructions. Drake Well Museum Thermoplastic Polyolefin Roofing

18 B. Start installation of membrane roofing in presence of membrane roofing system manufacturer's technical personnel. C. Accurately align membrane roofing and maintain uniform side and end laps of minimum dimensions required by manufacturer. Stagger end laps. D. Bonding Adhesive: Apply to substrate and underside of membrane roofing at rate required by manufacturer and allow to partially dry before installing membrane roofing. Do not apply to splice area of membrane roofing. E. Apply membrane roofing with side laps shingled with slope of roof deck where possible. F. Seams: Clean seam areas, overlap membrane roofing, and hot-air weld side and end laps of membrane 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 membrane. 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 does not comply with requirements. G. Spread sealant bed over deck drain flange at roof drains and securely seal membrane roofing in place with clamping ring. 3.5 BASE FLASHING INSTALLATION A. Install sheet flashings and preformed flashing accessories and adhere to substrates according to membrane 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. 3.6 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 membrane roofing system where inspections indicate that they do not comply with specified requirements. Drake Well Museum Thermoplastic Polyolefin Roofing

19 C. Additional inspections, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements. 3.7 PROTECTING AND CLEANING A. Correct deficiencies in or remove membrane roofing system that does not comply with requirements; repair substrates; and repair or reinstall membrane roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements. 3.8 ROOFING INSTALLER'S WARRANTY A. WHEREAS <Insert name> of <Insert address>, herein called the "Roofing Installer," has performed roofing and associated work ("work") on the following project: 1. Owner: <Insert name of Owner>. 2. Address: <Insert address>. 3. Building Name/Type: <Insert information>. 4. Address: <Insert address>. 5. Area of Work: <Insert information>. 6. Acceptance Date: <Insert date>. 7. Warranty Period: <Insert time>. 8. Expiration Date: <Insert 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 <Insert wind speed> mph (m/sec); 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 Drake Well Museum Thermoplastic Polyolefin Roofing

20 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 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 <Insert day> day of <Insert month>, <Insert year>. 1. Authorized Signature: <Insert signature>. 2. Name: <Insert name>. 3. Title: <Insert title>. END OF SECTION Drake Well Museum Thermoplastic Polyolefin Roofing