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Building Data Report

0. Space Type	BOS-School
1. Establishment Name	Channing William E Elem
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	0.7
13. Max ACH	3.5
14. Avg ACH	2.3
15. eACH	0
16. Filter MERV
17. Percent Outside Air	44.5
18. ON and Ventilates Entire Indoor Area	Yes
19. Vent Clearance min 6 ft	Yes
20. No of Rooms	6
21. sqft	940.8
22. cuft	9408
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 101. % Outside air 100. Calculated air volume (cfm) outside 91. Calculated air volume (cfm) return 0. Combined air volume (cfm) 91. ACH outside 0.7. ACH merv filter return air 0.0. ACH total 0.7. ACH Copy paste check (uses total or outside) 0.7. Room 110. % Outside air 100. Calculated air volume (cfm) outside 600. Calculated air volume (cfm) return 0. Combined air volume (cfm) 600. ACH outside 2.6. ACH merv filter return air 0.0. ACH total 2.6. ACH Copy paste check (uses total or outside) 2.6. Room 215. % Outside air 0. Calculated air volume (cfm) outside -26. Calculated air volume (cfm) return 534. Combined air volume (cfm) 508. ACH outside -0.2. ACH merv filter return air 3.5. ACH total 3.3. ACH Copy paste check (uses total or outside) 0. Room 204. % Outside air 0. Calculated air volume (cfm) outside -56. Calculated air volume (cfm) return 475. Combined air volume (cfm) 419. ACH outside -0.4. ACH merv filter return air 3.3. ACH total 2.9. ACH Copy paste check (uses total or outside) 0. Room 201. % Outside air 0. Calculated air volume (cfm) outside -77. Calculated air volume (cfm) return 590. Combined air volume (cfm) 513. ACH outside -0.5. ACH merv filter return air 4.0. ACH total 3.5. ACH Copy paste check (uses total or outside) 0. Room 103. % Outside air 89. Calculated air volume (cfm) outside 468. Calculated air volume (cfm) return 59. Combined air volume (cfm) 527. ACH outside 3.0. ACH merv filter return air 0.4. ACH total 3.4. ACH Copy paste check (uses total or outside) 3.

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