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HomeMy WebLinkAbout01-5100-Construction-Indoor-Air-Quality_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 01 5100 Construction Indoor Air Quality 1 of 7 SECTION 01 51 00 - CONSTRUCTION INDOOR AIR QUALITY PART 1- GENERAL 1.1 RELATED DOCUMENTS A. Section 018113 Sustainable Design Requirements 1.2 REQUIREMENTS INCLUDED IN THIS SECTION A. Indoor Air Quality Management Goals B. Indoor Air Quality Management Plan C. Indoor Air Quality Management Plan Implementation 1.3 INDOOR AIR QUALITY MANAGEMENT GOALS A. The Owner has established that this Project shall prevent indoor air quality problems resulting from the construction process, to sustain long-term installer and occupant health and comfort. B. Protect the ventilation system components during construction and cleanup of contaminated components after construction is complete. C. Control sources of potential Indoor Air Quality (IAQ) pollutants by controlling selection of materials and processes used in project construction. D. With regard to these goals the Contractor shall develop, for Owner and Architect’s review, an IAQ Management Plan for this Project PART 2 – PRODUCTS 2.1 SUBMITTALS: A. Construction IAQ Management Plan highlighting the five requirements of the Sheet Metal and Air Conditioning National Contractors Association (SMACNA) IAQ Guidelines for Occupied Buildings under Construction, 2nd edition, 2007, ANSI/SMACNA 008–2008, Chapter 3, including a no-smoking policy. B. Photographs documenting construction IAQ management measures implemented during construction of each of the five SMACNA requirements. C. Cut sheets of filtration media used during construction and installed immediately prior to occupancy with MERV values highlighted. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 01 5100 Construction Indoor Air Quality 2 of 7 D. Submit a letter from the Contractor describing building flush-out procedures including actual dates of building flush-out, hours of ventilation, ventilation rates, and indoor temperature and humidity levels. 2.2 IAQ MANAGEMENT PLAN A. Develop a Draft Indoor Air Quality (IAQ) Management Plan for the construction and pre- occupancy phases of the building as follows: (1) during construction meet or exceed the minimum requirements of the Sheet Metal and Air Conditioning National Contractors Association (SMACNA) IAQ Guidelines for Occupied Buildings under Construction, 2nd edition, 2007, ANSI/SMACNA 008–2008, Chapter 3, (2) Protect stored on-site or installed absorptive materials from moisture damage, and (3) conduct a building flush-out after construction ends and prior to occupancy. 1. The SMACNA IAQ Guidelines for Occupied Buildings under Construction provides an overview of air pollution associated with construction, control measures, construction process management, quality control, communicating with occupants, and case studies. These guidelines can be accessed at www.smacna.org. Chapter 3 of the SMACNA Guidelines recommends Control Measures in five areas: HVAC protection, source control, pathway interruption, housekeeping, and scheduling. Review the applicability of each Control Measure and include those that apply in the Draft IAQ Management Plan. a. HVAC Protection: Shut down the return side of the HVAC system whenever possible during heavy construction. If the system must remain operational during construction include the following strategies that apply: i. If conditioning is required during construction, use supplementary HVAC units instead of permanently installed equipment if possible. ii. Seal all ductwork, registers, diffusers, and returns with plastic when stored on site or not in service. Seal unfinished runs of ductwork at the end of each day iii. Fit the return side of the HVAC system with temporary filters. iv. Isolate the return side of the HVAC system from the surrounding environment as much as possible (e.g., place all tiles for the ceiling plenum, repair all ducts and air handler leaks). v. Damper off the return system in the heaviest work areas and seal the return system openings with plastic. vi. Upgrade the filter efficiency where major loading is expected to affect operating HVAC system. vii. Clean permanent return air ductwork per National Air Duct Cleaning Association standards upon completion of all construction and finish installation work. viii. If permanently installed air handlers are used during construction, filtration media with a Minimum Efficiency Reporting Value (MERV) of 8 shall be used at each return air grille during construction, as determined by ASHRAE 52.2-1999. ix. Install new clean media just prior to substantial completion and occupancy that has a Minimum Efficiency Reporting Value (MERV) of 13. b. Source Control: Keep sources of contaminants out of the building and have a plan to eliminate any that are introduced: i. Use low-toxicity and low-VOC materials to the greatest extent possible. ii. Develop protocols for the use of any high-toxicity materials. Isolate areas where high-toxicity materials are being installed and use temporary ventilation for that area. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 01 5100 Construction Indoor Air Quality 3 of 7 iii. Prevent exhaust fumes (from idling vehicles, equipment, and fossil- fueled tools) from entering the building. iv. Enforce the no-smoking job site policy. v. Protect stored materials from moisture because absorbent materials exposed to moisture during construction can mold and degenerate long after installation. Store materials in dry conditions indoors, under cover, and off the ground or floor. vi. If materials are improperly exposed to moisture, replace the material and consider testing air quality before occupancy to make sure no mold contamination has occurred. c. Pathway Interruption: Prevent contamination of clean spaces. Include the following strategies that apply: i. Use 100% outside air ventilation (when outside temperatures are between 55 degrees F and 85 degrees F and humidity is between 30% and 60%) with air exhausted directly to the outside during installation of finishes and other VOC emitting materials. ii. Isolate areas of work to prevent contamination of other spaces, whether they are finished or not. Seal doorways, windows, or tent off areas as needed using temporary barriers, such as plastic separations. Provide walk-off mats at entryways to reduce introduced dirt and pollutants. iii. Use dust guards and collectors on saws and other tools. iv. Depressurize the work area to allow a differential between construction areas and clean areas. Exhaust to the outdoors using 100% outdoor air, if possible d. Housekeeping: Reduce construction contamination in the building prior to occupancy through HVAC and regular space cleaning activities. i. Maintain good job site housekeeping on a daily basis. Use vacuum cleaners with high-efficiency particulate filters and use sweeping compounds or wetting agents for dust control when sweeping ii. Store building materials in a weather tight, clean area prior to unpacking for installation. iii. Check for possible damage to the HVAC system and Building assemblies from high humidity. iv. Clean all coils, air filters, and fans before testing and balancing procedures are performed. e. Scheduling: Specify construction sequencing to reduce absorption of VOC’s by materials that act as sinks or contaminant sources. Complete application of wet and odor-emitting materials such as paints, sealants, and coatings before installing sink materials such as ceiling tiles, carpets, insulation, gypsum products, and fabric-covered furnishings are installed. i. Consider after-hours or weekend work if practical. 2. Protect stored on-site or installed absorptive materials from exposure to moisture through precipitation, plumbing leaks, or condensation from the HVAC system to prevent microbial contamination. PART 3 – EXECUTION 3.1 FLUSH-OUT As part of Indoor air quality management, the following requirements have to be met: Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 01 5100 Construction Indoor Air Quality 4 of 7 FLUSH OUT: Provide a summary data log sheet indicating outside air cfm provided on an hourly basis during flush out. Provide cut sheets of filters use during flush out and verify replacement air filters after flush out. Refer to Section 018113 for LEED requirements. Or AIR TESTING: Provide an IAQ Testing report that includes a narrative describing procedures and how locations were determined, and date/results of each test. A. Building Flush Out: Select one of the following two options (prior to occupancy or during occupancy), to be implemented after construction ends and the building been completely cleaned. All interior finishes, such as millwork, doors, paint, carpet, acoustic tiles, and movable furnishing, must be installed, and major VOC punch list items must be finished. a. Prior to Building Occupancy: Prime Trade Contractor shall install new filtration media and perform a building flush-out by supplying a total air volume of 14,000 cubic feet f outdoor air per square foot of gross floor area while maintaining an internal temperature of at least 60ºF (15ºC) and no higher than 80ºF (27ºC) and relative humidity no higher than 60%. The duration of the flush-out must be calculated as follows: Cubic feet of outdoor air needed prior to occupancy = Area (ft2) X 14,000 cfm Duration (Days) = Cubic Feet needed/(air handler capacity/1440 minutes/day) i. Replace all outside air filtration media prior to occupancy. Filtration media shall have a MERV of 13 as determined by ASHRAE 52.2. b. During Occupancy: if occupancy is desired before the flush-out is completed, the space may be occupied only after delivery of a minimum of 3,500 cubic feet of outdoor air per square foot of gross floor area while maintaining an internal temperature of at least 60ºF (15ºC) and no higher than 80ºF (27ºC) and relative humidity no higher than 60%. Once the space is occupied, it must be ventilated at a minimum rate of 0.30 cubic foot per minute (CFM) per square foot of outdoor air or the design minimum outdoor air rate determined by the ASHRAE 62.1-2010 calculations determined in IEQ Prerequisite Minimum indoor Air Quality performance, whichever is greater. During each day of the flush-out period, ventilation must begin at least three hours before occupancy and continue during occupancy. These conditions must be maintained until a total of 14,000 cubic feet per square foot of outdoor air has been delivered to the space. The duration of the flush-out must be calculated as follows: Cubic feet of outdoor air needed prior to occupancy = Area (ft2) X 3,500 cfm Cubic feet of outdoor air needed during occupancy = Area (ft2) X 10,500 cfm Duration (Days) = (Area (ft2) X 14,00 cfm)/(air handler capacity/1440 minutes/day) B. IAQ Testing: After construction ends and before occupancy, but under ventilation conditions typical for occupancy, conduct IAQ testing using protocols consistent with the methods in the table below for all occupied spaces. C. Use current versions of ASTM standard methods, EPA compendium methods, or ISO methods, as indicated. D. Conduct all measurements before occupancy during normal occupied hours, with the building ventilation system started at the normal daily start time and operated at the minimum outdoor airflow rate for the occupied mode throughout the test. F Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 01 5100 Construction Indoor Air Quality 5 of 7 E. or each sampling point where the concentrations exceed the limit, take corrective action and retest for the noncompliant contaminants ate the same sample points. Repeat until all requirements are met. Test for the particulate matter (PM) and inorganic gases listed in Table 1, using an allowed test method, and demonstrate the contaminants do not exceed the concentration limits listed in the table. Table 1. Contaminant (CAS#) Concentration Limit (µg/m3) Allowed Test Methods Carbon monoxide (CO) 9 ppm; no more than 2 ppm above outdoor levels ISO 4224 EPA Compendium Method IP-3 GB/T 18883-2002 for projects in China Direct calibrated electrochemical instrument with accuracy of (+/- 2% ppm <50 ppm minimum accuracy). PM 10 ISO 14644-1:2015, cleanroom class of 8 or lower 50 μg/m3 Healthcare only: 20 μg/m3 Particulate monitoring device with accuracy greater of 5 micrograms/m3 or 20% of reading and resolution (5 min average data) +/- 5 µg/m 3 PM 2.5 12 μg/m3 or 35 µg/m3** Ozone 0.07 ppm Monitoring device with accuracy greater of 5 ppb or 20% of reading and resolution (5 min average data) +/- 5 ppb ISO 13964 ASTM D5149 -– 02 EPA designated methods for Ozone Perform a screening test for Total Volatile Organic Compounds (TVOC). Use ISO 16000-6, EPA TO-17,or EPA TO-15 to collect and analyze the air sample. Calculate the TVOC value per EN 16516:2017, CDPH Standard Method v1.2 2017 section 3.9.4, or alternative calculation method as long as full method description is included in test report. If the TVOC levels exceed 500 µg/m3, investigate for potential issues by comparing the individual VOC levels from the GC/MS results to associated cognizant authority health-basedlimits. Correct any identified issues and re-test if necessary. Additionally, test for the individual volatile organic compounds listed in Table 2 using an allowed test method and demonstrate the contaminants do not exceed the concentration limits listed in the table. Table 2. Contaminant (CAS#) Concentration Limit (µg/m3) Allowed Test Methods Formaldehyde 50-00-0 20 µg/m3 (16 ppb) ISO 16000-3, 4; EPA TO-11a, Acetaldehyde 75-07-0 140 µg/m3 Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 01 5100 Construction Indoor Air Quality 6 of 7 EPA comp. IP-6A ASTM D5197-16 Benzene 71-43-2 3 µg/m3 ISO 16000-6 EPA IP-1, EPA TO-17, EPA TO-15 ISO 16017-1, 2; ASTM D6196-15 Hexane (n-) 110-54-3 7000 µg/m3 Naphthalene 91-20-3 9 µg/m3 Phenol 108-95-2 200 µg/m3 Styrene 100-42-5 900 µg/m3 Tetrachloroethylene 127-18-4 35 µg/m3 Toluene 108-88-3 300 µg/m3 Vinyl acetate 108-05-4 200 µg/m3 Dichlorobenzene (1,4-) 106-46- 7 800 µg/m3 Xylenes-total 108-38-3, 95-47- 6, and 106-42-3 700 µg/m3 F. Draft IAQ Management Plan Review Meeting: Once the Owner and Architect have reviewed the Draft IAQ Management Plan and prior to construction at the site, schedule and conduct a meeting to review the Draft IAQ Management Plan and discuss procedures, schedules and specific requirements for IAQ during the construction and pre- construction phases of the building. Discuss coordination and interface between the Contractor and other construction activities. Identify and resolve problems with compliance to the requirements. Record minutes of the meeting, identify all conclusions reached and matters requiring further resolution. 1. Attendees: The Contractor and related Contractor personnel associated with the work of this section, including personnel to be in charge of the IAQ management program, Architect, Owner and such additional personnel as the Architect or Owner deems appropriate. G. Final IAQ Management Plan: Make any revisions to the Draft IAQ Management Plan agreed upon during the meeting identified in item (B) above and incorporate resolutions agreed to be made subsequent to the meeting. Submit the revised plan to the Owner and Architect for approval within 10 calendar days of the meeting. 3.2 IMPLEMENTATION OF IAQ MANAGEMENT PLAN A. Manager: The Contractor shall designate an on-site party (or parties) responsible for instructing workers and overseeing and the IAQ Management Plan for the Project. B. Progress Meetings: Construction related IAQ procedures shall be included in the pre- construction and construction progress meeting agendas. C. Distribution: The Contractor shall distribute copies of the IAQ Management Plan to the Job Site Foreman, each Subcontractor, the Owner, and the Architect. Dennis Yarmouth Intermediate Middle School January 19, 2021 Dennis Yarmouth Regional School District 100% Construction Documents Perkins Eastman DPC, project #71011 01 5100 Construction Indoor Air Quality 7 of 7 D. Instruction: The Contractor shall provide on-site instruction of the IAQ procedures and ensure that all participants in the construction process understand the importance of the goals of the IAQ Management Plan. END OF SECTION 01 51 00 (THIS PAGE IS BLANK)