Hvac & Partial Roof Replacement at Coventry
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HVAC & PARTIAL ROOF REPLACEMENT AT COVENTRY ELEMENTARY SCHOOL HUDSON + ASSOCIATES ARCHITECTS, PLLC PROJECT MANUAL APRIL 15, 2011 HVAC & PARTIAL ROOF REPLACEMENT AT COVENTRY ELEMENARY SCHOOL TABLE OF CONTENTS Invitation for Bids (IFB No. 1825) AIA General Conditions of the Contract for Construction DIVISION 01 - GENERAL CONDITIONS Section 011000 Summary of Work 012100 Allowances 012200 Unit Prices 012300 Alternates 012600 Contract Modification Procedures 012900 Applications for Payment 013100 Project Meetings 013300 Submittals 015000 Temporary Facilities 017400 Warranties and Bonds 017700 Project Closeout 017823 Operation and Maintenance Data 017839 Project Record Documents. 019100 Special Inspections DIVISION 02 – EXISTING CONDITIONS Section 024119 Selective Demolition DIVISION 03 – CONCRETE Section 033000 Cast-In-Place Concrete DIVISION 04- MASONRY 042000 Unit Masonry DIVISION 05 – METALS Section 051200 Structural Steel Framing 053100 Steel Decking 054000 Cold-Formed Metal Framing 055000 Metal Fabrications DIVISION 06 - WOOD & PLASTIC Section 061000 Rough Carpentry 061600 Sheathing DIVISION 07 - THERMAL & MOISTURE PROTECTION Section 071113 Bituminous Dampproofing 072100 Thermal Insulation 075113 Built-up Asphalt Roofing 075200 Modified Bituminous Membrane Roof Repair 076200 Sheet Metal Flashing and Trim 077200 Roof Accessories 079200 Joint Sealers TABLE OF CONTENTS 1 HVAC & PARTIAL ROOF REPLACEMENT AT COVENTRY ELEMENARY SCHOOL DIVISION 8- DOORS AND WINDOWS- Not Used DIVISION 9 - FINISHES Section 092216 Non-Structural Metal Framing 092900 Gypsum Board 095113 Acoustical Panel Ceilings 096513 Resilient Base and Accessories 096520 Resilient Tile Flooring 099123 Interior Painting 099600 High-Performance Coatings DIVISIONS 10 Thru 22 – Not Used DIVISION 230000 – HEATING, VENTILATING, AND AIR CONDITIONING Section 230100 Mechanical General Provisions 230500 Heating, Ventilating and Air Conditioning 230593 Testing, Adjusting and Balancing 230700 Mechanical Insulation 230900 Automatic Temperature Controls DIVISIONS 260000- ELECTRICAL Section 260100 Electrical General Provisions 260500 Materials and Methods 260518 Metal Clad Cables 260519 Conductors 260526 Grounding 260529 Supporting Devices 260533 Raceways 260534 Electrical Boxes and Fittings 262416 Panelboards 262420 Motors and Controls 262726 Wiring Devices and Device Plates 265100 Interior Building Lighting DIVISIONS 27 THRU 31 - Not Used DIVISION 320000- EXTERIOR IMPROVEMENTS 321216 Asphalt Paving TABLE OF CONTENTS 2 Page 1 of 53 Issue Date: March 5, 2012 IFB No. 1825 Title: HVAC & Partial Roof Replacement at Coventry Elementary School. Classification Code: 91066 County of York, Virginia Issuing Agency: Central Purchasing 120 Alexander Hamilton Blvd. Yorktown, Virginia 23690 County School Board of York County,Va Using Agency: Attn: Mark Tschirhart 302 Dare Road Yorktown, Virginia 23692 Sealed Bids Will Be Received Until Tuesday March 27, 2012 at 3:00PM.Which Time They Shall Be Opened In Public And Read Aloud. Note: Pre-Bid Conference: at Coventry Elementary School on Thursday March 15, 2012 at 10:00am in the main office. 200 Owen Davis Blvd., Yorktown, Va. 23693. Inquiries For Information To Be Directed To: Victor Robinson, Buyer, (757) 890-3680 SEND BIDS DIRECTLY TO THE ISSUING AGENCY SHOWN ABOVE. In Compliance With This Invitation For Bids And To All The Conditions Imposed Herein, The Under-signed Offers And Agrees to Furnish The Materials Described At the Prices Indicated In Section 29.0 Name and Address of Firm: _____________________________________ Date: ______________________ _____________________________________ By: Signature in Ink _____________________________________ Print/Type Name: Telephone No: ( ) Title: E-mail: Federal Tax ID#: State Corporation Commission (SSC) No. _________________________________ IFB 1825 Page 2 of 53 1.0 PURPOSE: It is the express intent of this formal Invitation For Bids (IFB) to acquire the services of a fully qualified Contractor, hereinafter the “Contractor”, to complete HVAC & Partial Roof Replacement at Coventry Elementary School for the County School Board of York County, Virginia, hereinafter “Owner”, in accordance with all applicable Federal, State, and Local government laws, ordinances, rules, regulations and these specifications, at the prices offered on the Bid Schedule (Section 29.0). 2.0 SUMMARY OF SCOPE OF WORK: Please refer to the Project Manual prepared by Hudson + Associates Architects, PLLC dated April 15, 2011 for a more detailed Scope of Work. A. The project includes the removal of the existing HVAC system in phases and replacement with a variable refrigerant system (VRS) as well as roof and finish repairs associated with the HVAC work. The existing closed loop heat pump HVAC system will remain in service between the project phases. It will serve the spaces included in Phase 2 during the school year 2012/2013. B. The VRS includes roof mounted variable speed condensing units with line set distribution above the corridors to the classrooms where ceiling mounted cassettes condition and distribute the air. The outside air requirement is provided by roof mounted recovery ventilation units (RVU). It is distributed and returned in ducts above the corridor to the classrooms. The project adds a fire ceiling (CFM joists and GWB) above the corridors to comply with current building code requirements. This facilitates the distribution of both the VRS and outside air in the plenum above classrooms and corridors. C. The load from the roof top equipment requires structural reinforcing of the existing structure. The joists beneath some equipment will be enhanced with panel point bracing and additional bridging to accept the new loads. In order to maintain existing drainage patterns on the recently installed roof, the new HVAC equipment will be mounted on structural steel platforms above the roof surface. D. Some of the equipment scheduled to be installed on the two low slope roofs above area B will require installation during Phase 1 and others during Phase 2. These roofs are a Johns-Manville three-ply BUR with a modified bitumen cap sheet system installed in 2009. They have a 20 year NDL warranty. Roof repairs associated with the equipment installations on these roofs are designed with a two ply modified bitumen roof systems. All roof work associated with IFB 1825 Page 3 of 53 the installation of this equipment shall be done in accordance with JM’s requirements to ensure continuation of the manufacturer’s warranty. E. The existing four-ply BUR with aggregate surface on the gymnasium will be replaced with a new three-ply BUR with modified bitumen cap sheet system during Phase 2 (summer 2013). The RTU on this roof will be curb mounted. F. Interior finishes affected by the HVAC work will include selective ceiling demolition and replacement, some VCT floor replacement and painting. G. The school is compartmentalized using fire walls, fire barriers and fire rated corridor walls to comply with the building code. HVAC and electrical penetrations as well as demolition of the existing hydronic piping require fire dampers, rated sleeves for pipes and conduits and block and GWB fill to close abandoned openings. H. The Owner has conducted hazardous material testing in the building. No asbestos was identified. If during the course of the work suspicious material is encountered, immediately notify the Mr. Frank Pitchford, Owner’s Safety Manager (e-mail [email protected] or phone (757)876-8801). Mr. Pitchford will conduct testing and prepare abatement specifications and procedures as required. 2.2 Contract Timeline: The work of this project can only be performed during the summer when school is not is session. The project scope is too large to be accomplished over a single summer. Therefore, it will be phased over two summers (2012 and 2013). The Contractor shall have access to the site for Phase 1 commencing with issuance of the Notice to Proceed. The Work shall start no earlier than Monday, June 18, 2012 and all work must be substantially completed by August 13, 2012. The Work of Phase 2 shall start no earlier than Monday, June 17, 2013 and be completed no later than August 15, 2013. Final Completion for each phase shall be no later than 30 days after substantial completion. IFB 1825 Page 4 of 53 The Contractor should plan on the following weather (rain and temperature) days for the project duration, including all time extensions made to the contract, up until final completion is given. Time extensions for this project will only be given if the actual rain days exceed the days listed below. January 10 Days February 9 Days March 11 Days April 11 Days May 12 Days June 10 Days July 11 Days August 10 Days September 9 Days October 7 Days November 8 Days December 10 Days A day will be considered a rain day when, on a work day (Monday through Friday), it rains at the job site such that less than 4 hours of production can occur, or when the chance of rain exceeds 70% as reported by a source agreed upon by both parties at the pre-construction meeting or when the temperature does not rise above 40 degrees for more than 4 hours. Weather delay claims must be made in writing on the day they occur. Days that are rain days will be established by mutual agreement on that day, but the Owner will have final authority on that day to establish whether or not the day will be considered a rain day. The Contractor’s failure to make a rain day claim on the day of the occurrence will be deemed a waiver by Contractor of its rights to make any such claims and will be interpreted as a “no-claim”. IFB 1825 Page 5 of 53 2.3 Project Phasing A. Phase 1 shall commence on June 18, 2012 and must be substantially complete by August 13, 2012. Phase 2 shall commence on June 17, 2013 and be substantially complete by August 15, 2013. Final completion will be 30 days after the substantial completion date established for each phase. B. Phase 1 shall include all of the work shown in areas A and C as well as the administration suite in area B as shown on the Construction Documents.