Prepared by:

Sustainable Engineering Solutions, LLC 865 Brook Street Rocky Hill, CT 06067

(860) 270-0413 www.sustainable-eng.com

IAQ Verification Report King Phillip Middle School West Hartford, CT

SES Project No. 24-211 December 16th, 2025

Sustainable Engineering Solutions, LLC 865 Brook Street Rocky Hill, CT 06067 sustainable-eng.com

Table of Contents Executive Summary

IAQ Verification Process

Filter Evaluation

Ventilation Evaluation

Demand Control Ventilation

Project Approach

Participants

Facility Description

Building

Occupancy

Building Automation System Description

HVAC Systems Description

Air Handling Equipment

Unit Ventilators

Exhaust Fans

Recommendations

Initial Recommendations

Recommendation #1: Add Mechanical Ventilation To Building

Recommendation #2: Rebalance RTU-5 & 6 and Integrate Equipment into the BMS

Recommendation #3: Replace FA-9

Recommendation #4: Replace Three Unit Ventilators

Recommendation #5: Filter Improvements

Recommendation #6: Rebalance/Repair Bathroom Exhaust Fan/s

Next Steps

Review Recommendations

Appendix A IAQ Evaluation Sheet Appendix B International Mechanical Code Minimum Ventilation Rates (2021) per ASHRAE 62.1

Executive Summary Sustainable Engineering Solutions, LLC (SES) and Trueflow Testing and Balancing were retained by the City of West Hartford to provide professional engineering and test and balancing (TAB) services to meet the indoor air quality (IAQ) verification requirements of the state legislation Public Act No. 23-167 at King Phillip Middle School. This combined effort successfully completed the required verification as outlined in the legislation. With a focus on validating and improving indoor air quality, SES and Trueflow systematically assessed each air handling system to measure current ventilation rates, filtration rates and distribution levels compared to current ventilation standards.

Overall, the majority of the building’s spaces are not equipped with mechanical ventilation and utilize operable windows as the primary source of ventilation. Although operable windows are an acceptable means of ventilation, it is recommended that a renovation of the school be performed to add mechanical ventilation to all spaces in the building.

The section below states several recommendations that once completed the building will meet all ventilation requirements.

Note that throughout this report the term “ventilation” air and “outside” are used interchangeably and are one in the same.

IAQ Verification Process Filter Evaluation As required by the law, the team reviewed the current level of filtration installed on each air handling system and analyzed the feasibility of increasing the filter ratings to MERV 13. A filter’s minimum efficiency reporting value, or MERV, is a rating system that measures how efficient a filter is at trapping harmful particulate matter, dust, and debris in the air. This rating system categorizes filters into a ranking from 2 to 20, with a MERV 8 being the standard. A higher MERV rating means that a filter is more efficient and MERV 13 is recommended for many commercial and industrial buildings and by state code. At its minimum, a MERV 13 filter traps less than 75% of air particles that are 0.3 to 1.0 microns in size and is at least 90% effective when the particles increase to 3 to 10 microns in size. Along with assessing the filter efficiencies, the condition of unit’s filters and proper sealing of the filter banks to eliminate bypass air was also evaluated.

Ventilation Evaluation The amount of ventilation air delivered into interior occupied spaces is governed by the 2022 Connecticut State Building Code, which references ASHRAE Standard 62.1. This code prescribes the flow rate of ventilation air that must be supplied mechanically, or otherwise, to occupied areas based on occupancy classifications. Depending on the type of use of a space and total space area, outdoor air flow rates in cubic feet per minute (CFM) per person and square foot are defined when the parameters are known. When total occupants per space are unknown, the code defines occupant density for each classification type in number of occupants per space floor area. The final flow rate in CFM for every occupied space can thus be calculated.

As an alternative to providing outside air mechanically to occupied spaces, the building code also allows for outside air to enter occupied areas naturally through operable windows. If the area of operable windows for an occupied space is at least 4% of the space’s floor area, mechanical ventilation for that space is not required by code. However, although spaces with sufficient operable window area may satisfy code requirements, this is not a realistic way of providing adequate ventilation during periods of cold or hot weather.

The amount of outside air supplied to occupied spaces is important for occupant comfort and health because contaminants generated by people and materials in the space must be removed or they will build up to unhealthy levels. Diluting interior air with outside air reduces the concentration of carbon dioxide, volatile organic compounds (VOCs) along with various airborne viral and bacterial contaminants.

Demand Control Ventilation In certain applications, the amount of outside air delivered to a space can be reduced if occupancy and indoor air quality can be safely monitored and controlled. This is most typically accomplished through monitoring carbon dioxide (CO2) and occupancy sensors in the space, otherwise known as “Demand Control Ventilation” or DCV. As occupancy rises in a space, so does the amount of CO2 as a result of the occupant’s natural respiration and exhalation of CO2. By monitoring CO2 and occupancy status, an HVAC system can reduce the amount of outside air to a zone when levels and occupancy are low. If CO2 levels rise above a certain threshold or occupancy is detected, the HVAC system can then increase the amount of fresh air until the levels fall back below an acceptable level. Having an operational demand control ventilation strategy in place will help reduce energy consumption of a facility while simultaneously ensuring all spaces are achieving the required fresh air requirements.

Project Approach During the review of the school, SES took the following steps to complete the study:

• Develop an IAQ evaluation plan and conduct a kickoff meeting with the client and Trueflow to review the plan, project schedule, access, etc.

• Perform a walkthrough of the building to review the HVAC systems providing ventilation air for a condition assessment of the systems and understand any maintenance issues that may be related.

• Review available documentation for the HVAC systems that includes:

o As-built drawings or original design drawings o O&M documentation for systems performance data o Review any previous testing adjusting and balancing reports from the HVAC systems o Review documentation describing the chronology of known problems, system failures, complaints, and alterations.

• Develop IAQ evaluation documentation for field evaluation of equipment.

• Perform field evaluation of equipment for ventilation sequence of operation and verify calibration of CO2 sensors where used (+/- 50 PPM).

• Review Trueflow’s completed ventilation rate verification sheets for each space for compliance with ASHRAE 62.1

• Review the Trueflow’s completed unit data sheets for each system providing ventilation air for ventilation airflows, filter condition and efficiency, damper conditions and maintenance adequacy.

• Prepare a report that summarizes the verification process, identifies any deficiencies that require correction and any recommendations to address the deficiencies found and next steps.

Participants The participants in the IAQ verification process for this project are identified below.

Owner

West Hartford Public Schools 50 South Main Street West Hartford, CT 06107 Contact: Robert Palmer Email: Robert.palmer@westhartfordct.gov

Engineer

Sustainable Engineering Solutions, LLC 865 Brook Street Rocky Hill, CT 06067 Contact: Brian Messerschmidt, PE, CCP, CEM Email: bmesserschmidt@sustainable-eng.com

TAB Provider

Trueflow 121 Broadway Street, Suite 1 Colchester, CT 06415 Contact: Bonnie Deschaine Email: bonnie@trueflowct.com

Facility Description Building

Building: King Phillip Middle School

Credit: Homes.com

Location: 100 King Philip Dr, West Hartford, CT 06117

Building Size (gross): 196,257 Year Constructed: 1954 Building Use (current): Education

King Phillip Middle School was originally constructed in 1954 to serve as a middle school for grades 6 through 8. Since construction, a renovation has occurred that installed DX cooling units into multiple classrooms throughout the building. The building houses classrooms, offices, media center, gymnasiums and more.

Occupancy The building is occupied Monday through Friday between 7 a.m. and 4 p.m. Special events are held on the weekends and after hours as needed for school extracurricular activities. In addition, the school hosts summer school activities during the summer break.

Building Automation System Description The HVAC system is controlled by an SNE building automation system. This system has graphics for all ventilation equipment excluding RTU-5 & RTU-6.

HVAC Systems Description

Air Handling Equipment The middle school is ventilated by twelve (12) total air handling units. Of the twelve, nine are 100% outside air units, FA-1, 2, 3, 4, 5, 6, 7 & 9 and MAU-1. The FA units are only capable of heating, and supply 100% heated outside air to the spaces noted in the table below. MAU-1, a newer 100% outside air unit is capable of heating and cooling and ventilates the newer M-wing classrooms. The other three (3) air handling units, RTU-5 & 6 and AHU-1 combine return air with outside air and supply to their ducted spaces. RTU-5 & 6 are currently not tied to the building management system.

Unit Tag Serves Type FA-1 Girls Locker Room / Gym 100% Outside Air Constant Volume FA-2 Boys Locker Room / Gym 100% Outside Air Constant Volume FA-3 Library 100% Outside Air Constant Volume FA-4 Band/Choral 100% Outside Air Constant Volume FA-5 Auditorium 100% Outside Air Constant Volume FA-6 Cafeteria 100% Outside Air Constant Volume FA-7 Gym 100% Outside Air Constant Volume FA-9 Kitchen 100% Outside Air Variable Volume

MAU-1 M-Wing 100% Outside Air Constant Volume AHU-1 Auditorium Single Zone Constant Volume RTU-5 Computer Lab Single Zone Constant Volume RTU-6 203 & 205 Multi-Zone Constant Volume

Typical Fresh Air (FA) Unit

Unit Ventilators Three unit ventilators with outside air intakes were found in the school. These units mix outside air with return air and heat as needed to satisfy space temperature setpoint. Units are not integrated to the BMS.

Exhaust Fans Exhaust fans are located throughout the roof and penthouse area of the school building. Exhaust fans associated with FA units are on the BMS, the remaining are not currently integrated into the building management system graphics.

Recommendations The following recommendations were made based on the review of TAB report, ventilation comparisons to the IMC Minimum Ventilation Rates (2021) and industry best practices. Additional supporting information can be found in the Appendices of the report.

Due to the limited area of focus of the required IAQ verification and this review, SES strongly recommends verifying the condition of all related HVAC equipment components and control functionality outside of the scope of this verification, prior to implementing any modifications to the HVAC systems.

Initial Recommendations

• Recommendation #1: Add Mechanical Ventilation To Building

• Recommendation #2: Rebalance RTU-5 & 6 and Integrate Equipment into the BMS

• Recommendation #3: Replace FA-9

• Recommendation #4: Replace Three Unit Ventilators

• Recommendation #5: Filter Improvements

• Recommendation #6: Rebalance/Repair Bathroom Exhaust Fan/s

Recommendation #1: Add Mechanical Ventilation To Building Currently, 114 spaces in the building were noted by the testing and balancing contractor during measurements to not have supply grilles and currently have no sources of mechanical ventilation. It is believed that the additional design intent of these spaces was to utilize mechanical return/exhaust from the space to negatively pressurize the space to draw in fresh air through open windows or nearby spaces. Although utilizing operable windows as a source of mechanical ventilation is an allowable source of ventilation, it is not recommended as it requires manual intervention to open/close windows. It also allows unconditioned (cold, hot, humid, etc.) air into the space. SES recommends the client review options for providing mechanical ventilation to the spaces noted as “N/A” in the spreadsheet in Appendix A.

Space Type Of Space Operable Windows?

B-1 Office spaces No B-2 Classrooms (ages 5 to 8) No

B-2A Office spaces No B-2B Office spaces No

Room 21 Music/theater/dance Yes B-3 Office spaces No

Office Boys Locker Room Office spaces No Room 5 Classrooms (ages 5 to 8) Yes

O-4 Office spaces Yes Room 14 Office space Yes Room 15 Classrooms (ages 5 to 8) Yes

Recommendation #2: Rebalance RTU-5 & 6 and Integrate Equipment into the BMS Currently, RTU-5 & 6 do not meet space ventilation requirements. Although these spaces served by RTU-5 & 6 have operable windows, operable windows are not a recommended means of ventilation, as they require manual operation to be effective and bring in unconditioned air. Each RTU serves two spaces, each with their own VAV box controlling supply air to the space.

The onsite TAB contractor noted that the operation of the VAVs was inconsistent and require calibration. The age and condition of the equipment is fair.

SES recommends that each RTU is integrated to the BMS for improved programming and operation. Following integration, the outside air level for each RTU should be balanced to the value noted in the table below. Then, each VAV should be recalibrated and rebalanced to the supply value in the table below to satisfy indoor air ventilation requirements.

Unit Tag Served Measured Outside Airflow (CFM)

Calculated Required Minimum Outside Airflow (CFM)

RTU-5 Computer Lab 277 970

RTU-6 203 & 205 304 860

Unit Served Space TAB Measured Supply Air

(CFM)

Calculated Supply Airflow

(CFM)

RTU-5 207 2,377 3,380

RTU-5 Computer Lab In 207 2,742 1,700

RTU-6 203 2,075 1,580

RTU-6 205 0 1,830

Recommendation #3: Replace FA-9 During testing and balancing, FA-5 was found to be inoperable, and FA-9 was found to be undersized for new indoor air quality requirements. Both these fresh air units have exceeded their typical lifespan based on the ASHRAE life expectancy chart.

Based on currently installed equipment, FA-5 appears to have been replaced in service by AHU-1, as the auditorium is now served by this unit. AHU-1 currently satisfies ventilation requirements for the space SES recommends that FA-9 is replaced with a newer, 100% unit, sized to supply the calculated quantity of outside airflow in the table below. Unit and associated EF should also be equipped with variable speed drives and demand control ventilation to increase outside air levels are space occupancy changes.

Unit Tag Space Calculated Min Outside Airflow (CFM) Calculated Max Outside Airflow (CFM) FA-9 Large Cafeteria 660 2,580

Recommendation #4: Replace Three Unit Ventilators During TAB measurements, it was found that there are three standalone unit ventilators installed in the middle school. Two of the three are installed in the main office, the third is installed in the basement. Several access doors for these units are not able to opened, preventing routine and required maintenance from being performed. In addition, the unit ventilator in the basement is currently inoperable.

As a result of the issues identified above, SES recommends the existing units be removed and replaced with new unit ventilators (UV) that are capable of heating, cooling and demand control ventilation. In addition, these new UV should be integrated into the building management system for ease of control and maintenance.

Recommendation #5: Filter Improvements Currently all air handling units were found to be installed with MERV 8 or 10 filters. SES recommends replacing and upgrading all final filters to at least MERV 13 for increased filtration efficiency.

Recommendation #6: Rebalance/Repair Bathroom Exhaust Fan/s During review of TAB data, the following bathrooms measure 0 CFM of exhaust airflow and do not meet exhaust ventilation requirements. Due to the age of the building and missing drawings, the exact exhaust fan intended to ventilate each space could not be determined. Operation of exhaust fans and condition of exhaust duct in these spaces should be reviewed.

Space TAB Measured Exhaust (CFM) Calculated Exhaust (CFM) Staff BR 0 45

Adult BR across from 118 0 25 Unisex BR across from 4 0 25 Womens BR across 15 0 50

Mens BR across from 15 0 100

Space TAB Measured Exhaust (CFM) Calculated Exhaust (CFM) BR in PE office 0 25

Nurse's BR 0 25 Boys BR in 29 0 25 Girls BR in 29 0 25

Staff Br next to 29 0 25 Staff BR across 204 0 25

Girls BR in Music hallway 0 165 Boys BR in Music hallway 0 150

BR next to Office P3 0 25 BR next to Office A3 0 165 Men's BR across 212 0 75

SES recommends that exhaust fans and exhaust duct connections in these spaces be reviewed for proper operation, functionality and that all connections remain.

Next Steps Review Recommendations It is recommended that the client review this report and the proposed recommendations for further clarification, if needed and decide a course of action. SES can provide additional assistance if needed, to further analyze and develop these recommendations for future implementation, and if desired, provide commissioning of the implemented measures.

Appendix A: IAQ Evaluation Sheet

Tag AREA SERVED Type Pre-Filter

Condition

Final Filter

Conditon Unit Condition Outside Air Control Method CO2 Control? Supply Airflow Min. Outside Airflow3 % OA

Summated OA

Airflow

Calculated Min.

Outside Airflow % OA2 Comments

AHU-1 Auditorium Single Zone VAV 3 3 GOOD Fixed Minimum Yes 19,022 4,576 24% 4,724 4,730 25%

RTU-5 Computer Lab Single Zone Constant Volume 2 2 GOOD Fixed Minimum No 5,119 277 5% 962 970 19%

RTU-6 203 & 205 Multi Zone Constant Volume 2 2 GOOD Fixed Minimum No 3,533 304 9% 850 860 24%

MAU-1 M-Wing 100% Outside Air 1 2 GOOD 100% Outside Air Yes 6,766 6,766 100% 3,559 3,560 53%

FA-1 Girls Locker Room / Gym 100% Outside Air 1 1 GOOD 100% Outside Air No 4,148 4,148 100% 1,504 1,510 36%

FA-2 Boys Locker Room / Gym 100% Outside Air 1 1 GOOD 100% Outside Air No 4,387 4,387 100% 1,504 1,510 34%

FA-3 Library 100% Outside Air 1 1 FAIR 100% Outside Air No 2,866 92 3% 622 630 22%

FA-4 Band/Choral 100% Outside Air 1 1 GOOD 100% Outside Air No 1,955 1,955 100% 731 740 38%

FA-5 Auditorium 100% Outside Air 1 1 POOR 100% Outside Air No - - #DIV/0! - - #DIV/0!

FA-6 Small Cafeteria 100% Outside Air 1 1 GOOD 100% Outside Air No 2,360 2,360 100% 1,839 1,840 78%

FA-7 Gym 100% Outside Air 1 1 FAIR 100% Outside Air No 3,276 3,276 100% 2,891 2,900 89%

FA-9 Large Cafeteria 100% Outside Air 1 1 FAIR 100% Outside Air No 2,158 2,158 100% 2,575 2,580 120%

TAB Measured Filters (1 = clean, 2 = partially loaded, 3 = dirty)

IMC 2021 Ventilation Assessment

Unit Tag Room # Category Infiltration ZoneArea, Az, per space (SF)

Zone

Population, Pz, per space

People OA Rate in

Breathing Zone, Rp

(CFM/person)

Area OA Rate in

Breathing Zone, Ra

(CFM/SF)

Default Occupant

Density

Breathing Zone OA

(CFM) Vbz=RpPz+RaAz

Table 6-2 Zone Air

Distribution

Effectiveness

Zone OA Flow, Voz Min. Ventilation

Airflow (CFM)

Actual Supply

Airflow (CFM)

% OA

Actual Ventilation

Airflow (CFM)

Ventilation Difference

(CFM)

Ventilation

Difference (%)

Code Satisified?

Comments

AHU-1 Auditorium Auditoriums No 6,642 865 5 0.06 150 4,724 1 4,724 4,724 19022 25% 4756 32 1% Yes

FA-1 7th grade Gym Spectator areas No 3195 175 7.5 0.06 150 1,504 1 1,504 1,504 4148 100% 4148 2,644 176% Yes

FA-2 7th Grade Gym Spectator areas No 3195 175 7.5 0.06 150 1,504 1 1,504 1,504 4387 100% 4387 2,883 192% Yes

FA-3 Library Libraries Yes 3,308 45 5 0.12 10 622 1 622 622 2518 100% 2518 1,896 305% Yes

FA-4 Band Room Music/theater/dance No 2,180 60 10 0.06 35 731 1 731 731 1543 100% 1543 812 111% Yes

FA-6 Small Cafe Cafeteria/fast-food dining Yes 2,174 193 7.5 0.18 100 1,839 1 1,839 1,839 2360 100% 2360 521 28% Yes

FA-7 6th Grade Gym Spectator areas Yes 4,428 350 7.5 0.06 150 2,891 1 2,891 2,891 3276 100% 3276 385 13% Yes

FA-9 Large Cafe Cafeteria/fast-food dining Yes 3,640 256 7.5 0.18 100 2,575 1 2,575 2,575 589 100% 589 (1,986) -77% Yes*

MAU-1 M201 Classrooms (ages 9 plus) Yes 783 26 10 0.12 35 354 1 354 354 643 100% 643 289 82% Yes

MAU-1 M202 Classrooms (ages 9 plus) Yes 406 12 10 0.12 35 169 1 169 169 355 100% 355 186 110% Yes

MAU-1 M203 Classrooms (ages 9 plus) Yes 783 19 10 0.12 35 284 1 284 284 653 100% 653 369 130% Yes

MAU-1 M204 Classrooms (ages 9 plus) Yes 406 12 10 0.12 35 169 1 169 169 345 100% 345 176 104% Yes

MAU-1 M205 Classrooms (ages 9 plus) Yes 783 18 10 0.12 35 274 1 274 274 340 100% 340 66 24% Yes

MAU-1 M206 Classrooms (ages 9 plus) Yes 406 7 10 0.12 35 119 1 119 119 319 100% 319 200 169% Yes

MAU-1 M207 Science laboratories Yes 1,215 27 10 0.18 25 489 1 489 489 885 100% 885 396 81% Yes

MAU-1 M208 Classrooms (ages 9 plus) Yes 406 5 10 0.12 35 99 1 99 99 329 100% 329 230 233% Yes

MAU-1 M209 Classrooms (ages 9 plus) Yes 783 26 10 0.12 35 354 1 354 354 671 100% 671 317 90% Yes

MAU-1 M210 Multiuse assembly No 1,024 50 7.5 0.06 100 436 1 436 436 1085 100% 1085 649 149% Yes

MAU-1 M211 Classrooms (ages 9 plus) Yes 783 25 10 0.12 35 344 1 344 344 669 100% 669 325 94% Yes

MAU-1 M212 Classrooms (ages 9 plus) Yes 783 25 10 0.12 35 344 1 344 344 681 100% 681 337 98% Yes

MAU-1 Connecting hallway Corridors No 295 12 0 0.06 0 18 1 18 18 230 100% 230 212 1202% Yes

MAU-1 From BRs to Mechanical Closet Corridors No 1,159 40 0 0.06 0 70 1 70 70 207 100% 207 137 198% Yes

MAU-1 From corner of 210 to 212 Corridors No 627 25 0 0.06 0 38 1 38 38 245 100% 245 207 551% Yes

RTU-5 207 Wood/metal shop Yes 1,955 29 10 0.18 20 642 1 642 642 2377 5% 119 (523) -81% Yes*

RTU-5 Computer lab in 207 Computer Lab Yes 664 24 10 0.12 25 320 1 320 320 2742 5% 137 (183) -57% Yes*

RTU-6 203 Computer Lab Yes 1,283 24 10 0.12 25 394 1 394 394 2075 9% 187 (207) -53% Yes*

RTU-6 205 Computer Lab Yes 1,638 26 10 0.12 25 457 1 457 457 0 9% 0 (457) -100% Yes*

UV MAIN OFFICE Main entry lobbies Yes 676.5 6 5 0.06 10 71 1 71 71 294 29% 84 13 19% Yes

UV MAIN OFFICE Main entry lobbies Yes 676.5 6 5 0.06 10 71 1 71 71 186 0% 0 (71) -100% Yes*

UV 110 Science laboratories Yes 1012.5 25 10 0.18 25 432 1 432 432 0 #DIV/0! 0 (432) -100% Yes*

N/A Custodians Office Office spaces Yes 286 9 5 0.06 5 62 1 62 62 0 #DIV/0! 0 (62) -100% Yes*

N/A Head Custodians Office Office spaces Yes 138 4 5 0.06 5 28 1 28 28 0 #DIV/0! 0 (28) -100% Yes*

N/A 100 Classrooms (ages 9 plus) Yes 488 15 10 0.12 35 209 1 209 209 0 #DIV/0! 0 (209) -100% Yes*

N/A 102 Classrooms (ages 9 plus) Yes 750 16 10 0.12 35 250 1 250 250 0 #DIV/0! 0 (250) -100% Yes*

N/A 104 Classrooms (ages 9 plus) Yes 775 25 10 0.12 35 343 1 343 343 0 #DIV/0! 0 (343) -100% Yes*

N/A Faculty Area Conference rooms No 140 4 5 0.06 50 28 1 28 28 0 #DIV/0! 0 (28) -100% No

N/A 106 Classrooms (ages 9 plus) Yes 418 13 10 0.12 35 180 1 180 180 0 #DIV/0! 0 (180) -100% Yes*

N/A 108 Science laboratories Yes 1,013 25 10 0.18 25 432 1 432 432 0 #DIV/0! 0 (432) -100% Yes*

N/A 110 Classrooms (ages 9 plus) Yes 1,013 25 10 0.12 35 372 1 372 372 0 #DIV/0! 0 (372) -100% Yes*

N/A 112 Classrooms (ages 9 plus) Yes 750 26 10 0.12 35 350 1 350 350 0 #DIV/0! 0 (350) -100% Yes*

N/A 114 Classrooms (ages 9 plus) Yes 750 27 10 0.12 35 360 1 360 360 0 #DIV/0! 0 (360) -100% Yes*

N/A 116 Science laboratories Yes 1,000 25 10 0.18 25 430 1 430 430 0 #DIV/0! 0 (430) -100% Yes*

N/A 118 Science laboratories Yes 1,000 25 10 0.18 25 430 1 430 430 0 #DIV/0! 0 (430) -100% Yes*

N/A 120 Science laboratories Yes 1,000 22 10 0.18 25 400 1 400 400 0 #DIV/0! 0 (400) -100% Yes*

N/A 122 Science laboratories Yes 1,000 20 10 0.18 25 380 1 380 380 0 #DIV/0! 0 (380) -100% Yes*

N/A PE office girls side Office spaces No 150 2 5 0.06 5 19 1 19 19 0 #DIV/0! 0 (19) -100% No

N/A PE office boys side Office spaces No 150 4 5 0.06 5 29 1 29 29 0 #DIV/0! 0 (29) -100% No

N/A 1 Classrooms (ages 9 plus) Yes 810 15 10 0.12 35 247 1 247 247 0 #DIV/0! 0 (247) -100% Yes*

N/A Right Office in room 1 Office spaces No 147 1 5 0.06 5 14 1 14 14 0 #DIV/0! 0 (14) -100% No

N/A Left Office in room 1 Office spaces Yes 124 4 5 0.06 5 27 1 27 27 0 #DIV/0! 0 (27) -100% Yes*

N/A 2 Classrooms (ages 9 plus) Yes 810 18 10 0.12 35 277 1 277 277 0 #DIV/0! 0 (277) -100% Yes*

N/A 3 Classrooms (ages 9 plus) Yes 810 24 10 0.12 35 337 1 337 337 0 #DIV/0! 0 (337) -100% Yes*

N/A 4 Classrooms (ages 9 plus) Yes 810 29 10 0.12 35 387 1 387 387 0 #DIV/0! 0 (387) -100% Yes*

N/A 5 Computer Lab Yes 810 23 10 0.12 25 327 1 327 327 0 #DIV/0! 0 (327) -100% Yes*

N/A Vestibule between rooms 3 and 5 Reception areas No 228 12 5 0.06 30 74 1 74 74 0 #DIV/0! 0 (74) -100% No

N/A 6 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A 7 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A 8 Classrooms (ages 9 plus) Yes 810 24 10 0.12 35 337 1 337 337 0 #DIV/0! 0 (337) -100% Yes*

N/A 9 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A Vestibule between 7 and 9 Reception areas No 228 12 5 0.06 30 74 1 74 74 0 #DIV/0! 0 (74) -100% No

N/A 9A Conference rooms Yes 230 4 5 0.06 50 34 1 34 34 0 #DIV/0! 0 (34) -100% Yes*

N/A 10 Classrooms (ages 9 plus) Yes 810 27 10 0.12 35 367 1 367 367 0 #DIV/0! 0 (367) -100% Yes*

N/A 11 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A Vestibule between 11 and 13 Reception areas No 228 12 5 0.06 30 74 1 74 74 0 #DIV/0! 0 (74) -100% No

N/A 12 Classrooms (ages 9 plus) Yes 810 23 10 0.12 35 327 1 327 327 0 #DIV/0! 0 (327) -100% Yes*

N/A 13 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A 14 Classrooms (ages 9 plus) No 810 19 10 0.12 35 287 1 287 287 0 #DIV/0! 0 (287) -100% No

N/A 15 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A 16 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A Vestibule between 15 and 16 Reception areas No 228 12 5 0.06 30 74 1 74 74 0 #DIV/0! 0 (74) -100% No

N/A 17 Classrooms (ages 9 plus) Yes 717 15 10 0.12 35 236 1 236 236 0 #DIV/0! 0 (236) -100% Yes*

N/A 18 Classrooms (ages 9 plus) Yes 810 25 10 0.12 35 347 1 347 347 0 #DIV/0! 0 (347) -100% Yes*

N/A 19 Classrooms (ages 9 plus) Yes 756 25 10 0.12 35 341 1 341 341 0 #DIV/0! 0 (341) -100% Yes*

N/A 19 office Office spaces No 138 3 5 0.06 5 23 1 23 23 0 #DIV/0! 0 (23) -100% No

N/A PE office Office spaces No 131 2 5 0.06 5 18 1 18 18 0 #DIV/0! 0 (18) -100% No

N/A 20 Classrooms (ages 9 plus) Yes 810 17 10 0.12 35 267 1 267 267 0 #DIV/0! 0 (267) -100% Yes*

N/A 21 Classrooms (ages 9 plus) Yes 810 20 10 0.12 35 297 1 297 297 0 #DIV/0! 0 (297) -100% Yes*

N/A 22 Classrooms (ages 9 plus) Yes 810 20 10 0.12 35 297 1 297 297 0 #DIV/0! 0 (297) -100% Yes*

N/A 23 Office spaces Yes 261 6 5 0.06 5 46 1 46 46 0 #DIV/0! 0 (46) -100% Yes*

N/A 24 Classrooms (ages 9 plus) Yes 556 10 10 0.12 35 167 1 167 167 0 #DIV/0! 0 (167) -100% Yes*

N/A Kitchen Office Office spaces No 88 2 5 0.06 5 15 1 15 15 0 #DIV/0! 0 (15) -100% No

N/A 25 Conference rooms No 268 12 5 0.06 50 76 1 76 76 0 #DIV/0! 0 (76) -100% No

N/A 27 Music/theater/dance Yes 941 34 10 0.06 35 396 1 396 396 0 #DIV/0! 0 (396) -100% Yes*

N/A Right P4 office Office spaces Yes 242 5 5 0.06 5 40 1 40 40 0 #DIV/0! 0 (40) -100% Yes*

N/A Left P4 office Office spaces Yes 198 6 5 0.06 5 42 1 42 42 0 #DIV/0! 0 (42) -100% Yes*

N/A P6 Conference Room Conference rooms No 115 4 5 0.06 50 27 1 27 27 0 #DIV/0! 0 (27) -100% No

N/A P6 Office Office spaces Yes 160 4 5 0.06 5 30 1 30 30 0 #DIV/0! 0 (30) -100% Yes*

N/A Nurse's Treatment Area Daycare Sickroom Yes 63 9 10 0.18 25 101 1 101 101 0 #DIV/0! 0 (101) -100% Yes*

N/A Nurse's Office Office spaces No 125 2 5 0.06 5 18 1 18 18 0 #DIV/0! 0 (18) -100% No

N/A Treatment room Daycare Sickroom No 63 1 10 0.18 25 21 1 21 21 0 #DIV/0! 0 (21) -100% No

N/A 27A Office spaces No 190 8 5 0.06 5 51 1 51 51 0 #DIV/0! 0 (51) -100% No

N/A 28 Art Classroom Yes 901 24 10 0.18 20 402 1 402 402 0 #DIV/0! 0 (402) -100% Yes*

N/A 29 Art Classroom Yes 866 25 10 0.18 20 406 1 406 406 0 #DIV/0! 0 (406) -100% Yes*

IMC 2021 Ventilation Assessment

Unit Tag Room # Category Infiltration ZoneArea, Az, per space (SF)

Zone

Population, Pz, per space

People OA Rate in

Breathing Zone, Rp

(CFM/person)

Area OA Rate in

Breathing Zone, Ra

(CFM/SF)

Default Occupant

Density

Breathing Zone OA

(CFM) Vbz=RpPz+RaAz

Table 6-2 Zone Air

Distribution

Effectiveness

Zone OA Flow, Voz Min. Ventilation

Airflow (CFM)

Actual Supply

Airflow (CFM)

% OA

Actual Ventilation

Airflow (CFM)

Ventilation Difference

(CFM)

Ventilation

Difference (%)

Code Satisified?

Comments

N/A 30 Art Classroom Yes 1,172 25 10 0.18 20 461 1 461 461 0 #DIV/0! 0 (461) -100% Yes*

N/A 200 Music/theater/dance Yes 750 26 10 0.06 35 305 1 305 305 0 #DIV/0! 0 (305) -100% Yes*

N/A 202 Classrooms (ages 9 plus) Yes 750 25 10 0.12 35 340 1 340 340 0 #DIV/0! 0 (340) -100% Yes*

N/A 202A Office spaces Yes 260 2 5 0.06 5 26 1 26 26 0 #DIV/0! 0 (26) -100% Yes*

N/A 204 Classrooms (ages 9 plus) Yes 750 23 10 0.12 35 320 1 320 320 0 #DIV/0! 0 (320) -100% Yes*

N/A Office 1 in 205 Office spaces No 154 2 5 0.06 5 19 1 19 19 0 #DIV/0! 0 (19) -100% No

N/A Office 2 in 205 Office spaces Yes 154 2 5 0.06 5 19 1 19 19 0 #DIV/0! 0 (19) -100% Yes*

N/A Paint room in 205 Art Classroom No 290 8 10 0.18 20 132 1 132 132 0 #DIV/0! 0 (132) -100% No

N/A 206 Classrooms (ages 9 plus) Yes 1,163 24 10 0.12 35 380 1 380 380 0 #DIV/0! 0 (380) -100% Yes*

N/A 209 Classrooms (ages 9 plus) Yes 744 11 10 0.12 35 199 1 199 199 0 #DIV/0! 0 (199) -100% Yes*

N/A Practice Room A Music/theater/dance Yes 90 2 10 0.06 35 25 1 25 25 0 #DIV/0! 0 (25) -100% Yes*

N/A Practice Room B Music/theater/dance Yes 90 2 10 0.06 35 25 1 25 25 0 #DIV/0! 0 (25) -100% Yes*

N/A Practice Room C Music/theater/dance Yes 90 2 10 0.06 35 25 1 25 25 0 #DIV/0! 0 (25) -100% Yes*

N/A Practice Room D Music/theater/dance Yes 90 2 10 0.06 35 25 1 25 25 0 #DIV/0! 0 (25) -100% Yes*

N/A Choir Room Music/theater/dance Yes 984 60 10 0.06 35 659 1 659 659 0 #DIV/0! 0 (659) -100% Yes*

N/A 33 Music/theater/dance Yes 552 25 10 0.06 35 283 1 283 283 0 #DIV/0! 0 (283) -100% Yes*

N/A 35 Office spaces No 308 8 5 0.06 5 58 1 58 58 0 #DIV/0! 0 (58) -100% No

N/A Conference Room outside office P1 and P2 Conference rooms No 187 6 5 0.06 50 41 1 41 41 0 #DIV/0! 0 (41) -100% No

N/A Office P1 Office spaces Yes 88 3 5 0.06 5 20 1 20 20 0 #DIV/0! 0 (20) -100% Yes*

N/A Office P2 Office spaces Yes 88 3 5 0.06 5 20 1 20 20 0 #DIV/0! 0 (20) -100% Yes*

N/A Office P3 Office spaces Yes 187 5 5 0.06 5 36 1 36 36 0 #DIV/0! 0 (36) -100% Yes*

N/A Unmarked Office next to staff BR left wing. Office spaces Yes 150 5 5 0.06 5 34 1 34 34 0 #DIV/0! 0 (34) -100% Yes*

N/A Unmarked Office on right wing of Main office Office spaces Yes 150 5 5 0.06 5 34 1 34 34 0 #DIV/0! 0 (34) -100% Yes*

N/A Corridor of Office P3 to main office. left wing Corridors No 144 8 0 0.06 0 9 1 9 9 0 #DIV/0! 0 (9) -100% No

N/A Corridor of office A3 right wing. Corridors No 115 8 0 0.06 0 7 1 7 7 0 #DIV/0! 0 (7) -100% No

N/A Office A3 Office spaces Yes 187 5 5 0.06 5 36 1 36 36 0 #DIV/0! 0 (36) -100% Yes*

N/A Faculty Lounge next to 210 Conference rooms No 387 15 5 0.06 50 98 1 98 98 0 #DIV/0! 0 (98) -100% No

N/A 210 Office spaces Yes 265 4 5 0.06 5 36 1 36 36 0 #DIV/0! 0 (36) -100% Yes*

N/A 211 Lounge Conference rooms No 116 2 5 0.06 50 17 1 17 17 0 #DIV/0! 0 (17) -100% No

N/A 211 Office spaces Yes 437 13 5 0.06 5 91 1 91 91 0 #DIV/0! 0 (91) -100% Yes*

N/A 212 Classrooms (ages 9 plus) Yes 500 12 10 0.12 35 180 1 180 180 0 #DIV/0! 0 (180) -100% Yes*

N/A 213 Classrooms (ages 9 plus) Yes 770 26 10 0.12 35 352 1 352 352 0 #DIV/0! 0 (352) -100% Yes*

N/A 214 Classrooms (ages 9 plus) Yes 750 27 10 0.12 35 360 1 360 360 0 #DIV/0! 0 (360) -100% Yes*

N/A 215 Classrooms (ages 9 plus) Yes 660 25 10 0.12 35 329 1 329 329 0 #DIV/0! 0 (329) -100% Yes*

N/A 216 Classrooms (ages 9 plus) Yes 750 28 10 0.12 35 370 1 370 370 0 #DIV/0! 0 (370) -100% Yes*

N/A Office in 216 Office spaces Yes 128 2 5 0.06 5 18 1 18 18 0 #DIV/0! 0 (18) -100% Yes*

N/A 217 Classrooms (ages 9 plus) Yes 660 16 10 0.12 35 239 1 239 239 0 #DIV/0! 0 (239) -100% Yes*

N/A 218 Classrooms (ages 9 plus) Yes 750 27 10 0.12 35 360 1 360 360 0 #DIV/0! 0 (360) -100% Yes*

N/A 219 Classrooms (ages 9 plus) Yes 660 27 10 0.12 35 349 1 349 349 0 #DIV/0! 0 (349) -100% Yes*

N/A 220 Classrooms (ages 9 plus) Yes 750 27 10 0.12 35 360 1 360 360 0 #DIV/0! 0 (360) -100% Yes*

N/A 222 Classrooms (ages 9 plus) Yes 750 28 10 0.12 35 370 1 370 370 0 #DIV/0! 0 (370) -100% Yes*

N/A 224 Classrooms (ages 9 plus) Yes 750 25 10 0.12 35 340 1 340 340 0 #DIV/0! 0 (340) -100% Yes*

N/A 223 Classrooms (ages 9 plus) Yes 1,100 50 10 0.12 35 632 1 632 632 0 #DIV/0! 0 (632) -100% Yes*

N/A 223A Office spaces Yes 429 6 5 0.06 5 56 1 56 56 0 #DIV/0! 0 (56) -100% Yes*

N/A 225 Classrooms (ages 9 plus) Yes 660 14 10 0.12 35 219 1 219 219 0 #DIV/0! 0 (219) -100% Yes*

N/A 226 Classrooms (ages 9 plus) Yes 750 28 10 0.12 35 370 1 370 370 0 #DIV/0! 0 (370) -100% Yes*

N/A 227 Classrooms (ages 9 plus) Yes 660 27 10 0.12 35 349 1 349 349 0 #DIV/0! 0 (349) -100% Yes*

N/A 228 Classrooms (ages 9 plus) Yes 750 28 10 0.12 35 370 1 370 370 0 #DIV/0! 0 (370) -100% Yes*

N/A 229 Music/theater/dance Yes 660 29 10 0.06 35 330 1 330 330 0 #DIV/0! 0 (330) -100% Yes*

N/A 230 Classrooms (ages 9 plus) Yes 750 28 10 0.12 35 370 1 370 370 0 #DIV/0! 0 (370) -100% Yes*

N/A 232 Classrooms (ages 9 plus) Yes 750 27 10 0.12 35 360 1 360 360 0 #DIV/0! 0 (360) -100% Yes*

Room # Category ZoneArea, Az, per space (SF) TAB Exhaust CFM # of Toilets Calc'd Exhaust CFM

Ventilation Difference

(CFM)

Code Satisified? Comments

Staff BR Toilet rooms - private 22 0 1 45 (45) No

Faculty BR Toilet rooms - private 84.5 58 2 50 8 Yes

Left BR across from 106 Toilet rooms - private 25 40 1 25 15 Yes

Right BR across from 106 Toilet rooms - private 25 28 1 25 3 Yes

Girls BR next to 110 Toilet rooms - private 198 201 5 125 76 Yes

Adult BR across from 118 Toilet rooms - private 22.5 0 1 25 (25) No

Unisex BR across from 118 Toilet rooms - private 22.5 28 1 25 3 Yes

Boys BR next to 120 Toilet rooms - private 198 213 7 175 38 Yes

PE office girls side br Toilet rooms - private 25.5 40 1 25 15 Yes

PE office Boys side br Toilet rooms - private 25.5 44 1 25 19 Yes

Boys BR next to 2 Toilet rooms - private 207 187 5 125 62 Yes

Girls BR next to 4 Toilet rooms - private 207 143 5 125 18 Yes

Unisex BR across from 4 Toilet rooms - private 42.75 0 1 25 (25) No

9 Right BR Toilet rooms - private 11.25 34 1 25 9 Yes

9 left BR Toilet rooms - private 11.25 31 1 25 6 Yes

11 Right BR Toilet rooms - private 11.25 37 1 25 12 Yes

11 left br Toilet rooms - private 11.25 59 1 25 34 Yes

Womens BR across 15 Toilet rooms - private 110 0 2 50 (50) No

Mens BR across from 15 Toilet rooms - private 110 0 4 100 (100) No

16 Right BR Toilet rooms - private 11.25 66 1 25 41 Yes

16 Left BR Toilet rooms - private 11.25 73 1 25 48 Yes

19 BR Toilet rooms - private 22.5 46 1 25 21 Yes

BR in PE office Toilet rooms - private 40 0 1 25 (25) No

BR across from 22 Toilet rooms - private 22.5 79 1 25 54 Yes

Women's BR next to 24 Toilet rooms - private 89.25 174 3 75 99 Yes

BR in 25 Toilet rooms - private 25 54 1 45 9 Yes

26 Toilet rooms - private 655.5 356 160 196 Yes

BR in 26 Toilet rooms - private 27.5 64 1 25 39 Yes

Nurse's BR Toilet rooms - private 42 0 1 25 (25) No

Boys BR in 29 Toilet rooms - private 12.5 0 1 25 (25) No

Girls BR in 29 Toilet rooms - private 12.5 0 1 25 (25) No

Staff Br next to 29 Toilet rooms - private 27.5 0 1 25 (25) No

Staff BR across 204 Toilet rooms - private 22.5 0 1 25 (25) No

Girls BR in Music hallway Toilet rooms - private 168 0 5 165 (165) No

Boys BR in Music hallway Toilet rooms - private 144 0 6 150 (150) No

BR next to Office P3 Toilet rooms - private 16.5 0 1 25 (25) No

BR next to Office A3 Toilet rooms - private 16.5 0 1 165 (165) No

Women's BR next to 211 Toilet rooms - private 72 102 3 75 27 Yes

Men's BR across 212 Toilet rooms - private 109.25 0 3 75 (75) No

Boys BR across from 217 Toilet rooms - private 189 196 6 150 46 Yes

Girls BR next to 218 Toilet rooms - private 180 262 4 100 162 Yes

Girls BR across 223A Toilet rooms - private 180 213 4 100 113 Yes

Boys Br next to 228 Toilet rooms - private 193.5 210 5 125 85 Yes

Left Staff BR across 223A Toilet rooms - private 24.75 93 1 25 68 Yes

Right staff br across 223A Toilet rooms - private 24.75 98 1 25 73 Yes

Boys BR Toilet rooms - private 186 168 5 125 43 Yes

Girrls BR Toilet rooms - private 204 363 5 125 238 Yes

Faculty BR Toilet rooms - private 66.5 53 1 25 28 Yes

Appendix B: International Mechanical Code Minimum Ventilation Rates (2021) per ASHRAE 62.1

Minimum Ventilation Rates in Breathing Zone People Outdoor

Air Rate Rp

Area Outdoor Air

Rate Ra

Default Values

(Occupant Density) Air Class OS (6.2.6.1.4) Comments

Occupancy Classification Category cfm/person cfm/sf #/1000sf

Educational Facilities Art Classroom 10 0.18 20 2 No

Educational Facilities Classrooms (ages 5 to 8) 10 0.12 25 1 No

Educational Facilities Classrooms (ages 9 plus) 10 0.12 35 1 No

Educational Facilities Computer Lab 10 0.12 25 1 No

Educational Facilities Daycare Sickroom 10 0.18 25 3 No

Educational Facilities Daycare (through age 4) 10 0.18 25 2 No

Educational Facilities Auditoriums 5 0.06 150 0

Educational Facilities Lecture Classroom 7.5 0.06 65 1 Yes

Per ASHRAE, lecture classrooms are spaces with low space generated emissions and hard surfaces. Little off gassing so reduced levels. Most standard classrooms will be lecture classroom type.

Educational Facilities Lecture hall (fixed seats) 7.5 0.06 150 1 Yes University style (see occupant density)

Educational Facilities Libraries 5 0.12 10 n/a No

Educational Facilities Media Center 10 0.12 25 1 No

Educational Facilities Multiuse assembly 7.5 0.06 100 1 Yes

Educational Facilities Music/theater/dance 10 0.06 35 1 Yes

Educational Facilities Science laboratories 10 0.18 25 2 No

Educational Facilities University/college laboratories 10 0.18 25 2 No

Educational Facilities Sports locker rooms 0 -0.7 0 0 No

Educational Facilities Wood/metal shop 10 0.18 20 2 No

Food and Beverage Bars, cocktail lounges 7.5 0.18 100 2 No

Food and Beverage Cafeteria/fast-food dining 7.5 0.18 100 2 No

Food and Beverage Kitchen (cooking) 7.5 0.18 20 2 No

Food and Beverage Restaurant dining rooms 7.5 0.18 70 2 No

Private Dwellings Toilet rooms - private 0 0 0 0

Offices Conference rooms 5 0.06 50 1 Yes

Offices Main entry lobbies 5 0.06 10 1 Yes

Offices Office spaces 5 0.06 5 1 Yes

Offices Reception areas 5 0.06 30 1 Yes

Offices Telephone/data entry 5 0.06 60 1 Yes

Public spaces Corridors 0 0.06 0

Public spaces Shower room 0 0 0

Public spaces Toilet rooms - public 0 0 0

Public Assembly Spaces Auditorium seating area 5 0.06 150 1 Yes

Public Assembly Spaces Libraries 5 0.12 10 1 No

Public Assembly Spaces Toilet rooms - public 0 0 0

Sports and Entertainment Bowling alley (seating) 10 0.12 40 1 No

Sports and Entertainment Disco/dance floors 20 0.06 100 2 Yes

Sports and Entertainment Gambling casinos 7.5 0.18 120 1 No

Sports and Entertainment Game arcades 7.5 0.18 20 1 No

Sports and Entertainment Gym, sports arena (play area) 20 0.18 7 2 No

Sports and Entertainment Health club/aerobics room 20 0.06 40 2 No

Sports and Entertainment Health club/weight room 20 0.06 10 2 No

Sports and Entertainment Spectator areas 7.5 0.06 150 1 Yes

Sports and Entertainment Stages, studios 10 0.06 70 1 Yes

Sports and Entertainment Swimming (pool and deck) 0 0.48 0 2 No

Minimum Exhaust Rates

Occupancy Classification Category CFM/fixture CFM/SF Comments

Educational Facilities Toilet rooms - public 50 0 20

Educational Facilities Toilet rooms - private 25 0

Educational Facilities Shower rooms 20 0

Educational Facilities Sports locker rooms 0 0.5