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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Edwards Clarence R Middle
2. Address	address
3. City	Boston
4. State / Province	MA
5. Country	USA
6. Date	03/21/2021
7. Data Source	School District
8. Performed by	External Company
9. Company Name Address Contact	Cashins & Associates, Inc. 599 North Ave #8, Wakefield, MA 01880
10. Requirement Source	Boston School 3 ACH guideline
11. Technology	Natural Ventilation Windows and Limited Univent HVAC
12. Min ACH	4.1
13. Max ACH	6
14. Avg ACH	5.2
15. eACH	0
16. Filter MERV
17. Percent Outside Air	76.5
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	6
21. sqft	887.5
22. cuft	8875
23. No of Buildings	1
24. Comments	Source Boston School District March 18, 2021. https://www.bostonpublicschools.org/Page/8463 . https://drive.google.com/file/d/1bzam7XeMQDjjv7Og_86PS41K78hBEOfT/view . assumed 10ft ceiling. wACH windows provided in dataset. Calculated wACH from measured CFM rates in dataset do not match. Differences due to errors. Did not use calculated wACH. Room 117. % Outside air 80. Calculated air volume (cfm) outside 590. Calculated air volume (cfm) return 150. Combined air volume (cfm) 740. ACH outside 3.8. ACH merv filter return air 1.0. ACH total 4.7. ACH Copy paste check (uses total or outside) 3.6. Room 210. % Outside air 91. Calculated air volume (cfm) outside 520. Calculated air volume (cfm) return 50. Combined air volume (cfm) 570. ACH outside 5.4. ACH merv filter return air 0.5. ACH total 5.9. ACH Copy paste check (uses total or outside) 5.4. Room 203. % Outside air 86. Calculated air volume (cfm) outside 450. Calculated air volume (cfm) return 75. Combined air volume (cfm) 525. ACH outside 3.5. ACH merv filter return air 0.6. ACH total 4.1. ACH Copy paste check (uses total or outside) 3.5. Room 307. % Outside air 83. Calculated air volume (cfm) outside 530. Calculated air volume (cfm) return 110. Combined air volume (cfm) 640. ACH outside 4.0. ACH merv filter return air 0.8. ACH total 4.8. ACH Copy paste check (uses total or outside) 4. Room 319. % Outside air 62. Calculated air volume (cfm) outside 490. Calculated air volume (cfm) return 300. Combined air volume (cfm) 790. ACH outside 3.7. ACH merv filter return air 2.3. ACH total 6.0. ACH Copy paste check (uses total or outside) 3.7. Room 106. % Outside air 81. Calculated air volume (cfm) outside 539. Calculated air volume (cfm) return 128. Combined air volume (cfm) 667. ACH outside 3.6. ACH merv filter return air 0.9. ACH total 4.5. ACH Copy paste check (uses total or outside) 3.6.

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