Indoor Air Quality Management Plan for LEED

Transcription

1 Terminal Development Program Contract 1: B San Diego Airport Terminal 2 West Expansion Indoor Air Quality Management Plan for LEED Prepared by HVAC Design Builder: California Comfort Systems USA Construction Design Builder: Turner-PCL-Flatiron Owner: San Diego Airport Authority LEED Consultant: Architectural Energy Corporation 1

2 Guideline for LEED NCv2.2 EQc3.1 2

3 Construction Indoor Air Quality Management Plan This plan describes the measures to be taken to provide good indoor air quality (IAQ) during construction and after construction is complete and the occupants have moved into the building. This plan is based on the SMACNA standard IAQ Guidelines for Occupied Buildings under Construction and the requirements of the LEED v2.2 for New Construction and Major Renovations rating system. It is not the intent of this document to replace or supersede OSHA regulations as to safe construction workplace practices. It remains the responsibility of the Construction Manager and the individual sub-contractors to maintain safe building and site operations. Additional precautions may be necessary when hazardous materials are present. The plan will address construction IAQ by recommending procedures in five areas of concern. o HVAC system protection o Contaminant source control o Pathway interruption o Housekeeping o Scheduling The following describes the specific measures to be performed in each area of concern And lists responsibilities of participating parties. HVAC Protection During construction, provide MERV 8 filters for supply air intake when in use. Provide MERV 8 filters at the return air system openings when in use. Perform frequent maintenance when the HVAC system is being utilized and replace filters with MERV 8 as they become loaded, prior to building flush out, and prior to occupancy. (Mechanical Contractor) When performing construction activities that produce dust, such as drywall sanding, concrete cutting, masonry work, wood sawing or adding insulation, seal off the supply diffusers and return air system openings completely for the duration of the task. (Mechanical Contractor Coordinated with General Contractor.) Shut down and seal off the supply diffusers and return air ducts during any demolition operations. (Mechanical Contractor Coordinated with General Contractor.) Whenever the HVAC system is not used during construction, seal off the supply diffusers and return air system openings to prevent the accumulation of dust and debris in the duct system. (Mechanical Contractor.) 3

4 Do not use the mechanical rooms to store construction or waste materials. Keep rooms clean and neat. (General Contractor & All Subcontractors.) Provide periodic duct inspections during construction; if the ducts become contaminated due to inadequate protection, clean the ducts professionally in accordance with NADCA (National Air Duct Cleaning Association) standards. (Mechanical Contractor Possibly at additional costs dependent on project conditions.) The General Contractor shall take photographs showing measures in place. Source Control Use low VOC products as indicated by the specifications to reduce potential problems. (General Contractor to enforce with all Subcontractors.) Restrict traffic volume and prohibit idling of motor vehicles where emissions could be drawn into the building. (General Contractor to enforce with all Subcontractors.) Utilize electric or natural gas alternatives for gasoline and diesel equipment where possible and practical. Use low-sulfur diesel in lieu of regular diesel. (General Contractor to enforce with all Subcontractors.) Cycle equipment off when not being used or needed. (General Contractor to enforce with all Subcontractors.) Exhaust pollution sources to the outside with portable fan systems. Prevent exhaust from re-circulating back into the building. (General Contractor to enforce with all Subcontractors.) Keep containers of wet products closed as much as possible. Cover or seal containers of waste materials that can release odor or dust, (General Contractor to enforce with all Subcontractors.) Protect stored on-site or installed absorptive building materials from weather and moisture; wrap with plastic and seal tight to prevent moisture absorption. (General Contractor to enforce with all Subcontractors.) The General Contractor shall take photographs showing measures in place. 1. Pathway Interruption Provide dust curtains or temporary enclosures to prevent dust from migrating to other areas when applicable. (General Contractor to enforce with all Subcontractors.) Locate pollutant sources as far away as possible from supply ducts and area occupied by workers when feasible. Supply and exhaust systems may have to be shut down or isolated during such activity. (General Contractor to enforce with all Subcontractors.) 4

5 During construction, isolate areas of work to prevent contamination of clean or occupied areas. Pressure differentials may be utilized to prevent contaminated air from entering clean areas. (General Contractor to enforce with all Subcontractors.) Depending on weather, ventilation using 100% outside air will be used to exhaust contaminated air directly to the outside during installation of VOC emitting materials/ (Co-ordinate scheduled activities with General Contractor and Mechanical Contractor..) The General Contractor shall take photographs showing measures in place. 2. Housekeeping Provide regular cleaning concentrating on HVAC equipment and building spaces to remove contaminants from the building prior to occupancy. (General Contractor to direct and coordinate with all Subcontractors.) All coils, air filters, fans and ductwork shall remain clean during installation and, if required, will be cleaned prior to performing the testing, adjusting and balancing of the systems. (Mechanical Contractor.) Suppress and minimize dust with wetting agents or sweeping compounds. Utilize efficient and effective dust collecting methods such as a damp cloth, wet mop, or vacuum with particulate filters or wet scrubber. (Responsibility of all Subcontractors as directed by General Contractor.) Remove accumulations of water inside the building. Protect porous materials such as insulation and ceiling tile from exposure to moisture. (General Contractor to enforce with all Subcontractors.) Thoroughly clean all interior surfaces prior to replacing filters and running HVAC system for system balancing, commissioning and building flush out. (General Contractor to enforce with all Subcontractors.) Provide photographs of the above activities during construction to document compliance. (Joint effort by General Contractor and Mechanical Contractor,) Scheduling and Construction Activity Sequence Schedule high pollution activities that utilize high VOC level products (including paints, sealers, insulation, adhesives, caulking and cleaners) to take place prior to installing highly absorbent materials (such as ceiling tiles, gypsum wall board, fabric furnishings, carpet and insulation). These materials will act as sinks for VOCs, odors and other contaminants, and release them later after occupancy. (General Contractor to enforce with all Subcontractors.) Conduct a minimum two-week flush out with new filter media at 100% outside air after construction ends and before occupancy or take air samples for VOC s and if acceptable by SMACNA and or ANSI/ASHRAE bypass flush process. 5

6 NO CONSTRUCTION ACTIVITIES, INCLUDING PUNCHLIST ITEMS ARE PERMITTED DURING FLUSH OUT ACTIVITIES. Provide photographs of the above activities during construction to document compliance. Planning and Inspection Inspection checklists and photographs of the above activities will be completed monthly to confirm that the IAQW Management Plan is being followed. A report of the monthly inspection and the photographs will be provided to support the documentation for the LEED submission to the USGBC. The Inspection Checklists and photographs will be completed by Lance Zangger Project Organization PERSONNEL AND RESPONSIBILITIES The following personnel will have primary responsibility for executing and monitoring the Construction IAQ Management Plan. Responsibilities are defined as the following: Construction Quality Manager Mark Gibbs Quality Control Manager Overall responsibility for the execution of the plan. Resolve disputes related to Plan execution and coordination. (Appoint the IAQ Representative) The Representatives shall be, Randy Andrus (LEED Manager JV), Evan Harriger (MEP Engineer JV), David Kirk (MEP QA/QC, QC Southwest, Terriann Nohilly (Field Engineer, JV) IAQ Representative Inform all construction personnel of the Construction IAQ Management Plan's goals and procedures. Provide opportunities for discussion and feedback to ensure that all construction personnel thoroughly understand the intent and detailed procedures of the plan. Regularly tour the jobsite to supervise and ensure Plan compliance. Discuss ongoing measures to carry out the Plan at project coordination meetings and/or meetings organized to address Construction IAQ Management. Minutes shall be kept at these meetings for the Owner's records and for Plan documentation. Ensure that criteria for warnings and corrective actions due to poor or failed compliance with the Plan are clearly understood by all affected parties. Notify Above if, in the Representative's opinion, the procedures and measures required to implement the Plan are not being adhered to. Generate and/or compile all Plan documentation. Subcontractors Carry out requirements of the Plan under the direction of the Representative. Discuss measures to carry out the Plan at all meetings with the Construction Manager and with any other subcontractors performing work affected by the Plan. Sequence work and use work methods that conform to the Plan requirements. Assume financial responsibility for costs resulting from poor or failed compliance with the Plan. 6

7 PLAN DOCUMENTATION Primary copies of the documentation will be filed at the project site, with a copy stored at the office of the Construction Manager. Upon occupancy of the building (or earlier, if requested), the Owner will be provided with the following documentation package: The approved Construction IAQ Management Plan. Minutes of all meetings in which Construction IAQ issues were discussed. Deficiency reports showing corrective action taken and dates of both deficiency and corrective action. Copies of work orders and a work order log. Schedule of temporary use of building mechanical equipment. Schedule of filter change-outs showing location, time, and filter type, until acceptance of equipment by Owner. Cut sheets for all filtration media used. Copies of duct testing and cleaning reports (if performed). Job progress photographs will be taken on a weekly basis or as necessary during critical periods: (at least 18 clear progress photographs) evenly divided among several different occasions. Photographs will show implementation of various measures required by the Plan, and will be labeled to indicate the measure being shown. Photographs will have integral date stamps, and will be submitted in chronological order. The onsite location of each photograph should also be identified. JV to audit documentation monthly. REFERENCED STANDARDS SMACNA IAQ Guidelines for Occupied Buildings under Construction, 1995, Sheet Metal and Air Conditioning National Contractors Association (SMACNA). The overall intent and some detailed recommendation found in these Guidelines is the basis for the Plan, although the Guidelines are intended for use in occupied buildings. ANSI/ASHRAE ; Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size. These define the testing to establish the MERV rating of filters. General Specifications for the Cleaning of HVAC Systems, National Air Duct Cleaning Association, 1997, ( ). 7