England · Statutory guidance
Ventilation: Approved Document F, Volume 2 — Buildings other than dwellings
Ventilation guidance for non-domestic buildings, including outdoor air supply, extract ventilation and commissioning.
- Edition
- 2021 edition with 2022 corrections · Volume 2; later editions and transitions on source page
- Search coverage
- 48 of 48 PDF pages · 3 OCR pages
Ventilation
Open original PDF at page 25 Source wording and page order preserved. Drawings and table layouts remain available in the original PDF.
O N L I N E V E R S I O N F1(1)
b. Close ventilation intakes when the concentrations of external pollutants are highest.
NOTE: In these circumstances, expert advice should be sought.
Location of exhaust outlets
2.7 Exhaust outlets should be located so that both of the following are achieved.
a. Re-entry of exhaust air into a building, or entry into nearby buildings, is minimised.
b. There is no harmful effect on the surrounding area.
2.8 Where there is a prevailing wind direction, exhaust outlets should be downwind of intakes.
2.9 Exhaust outlets should not discharge into any of the following.
a. Courtyards.
b. Enclosures.
c. Architectural screens.
NOTE: Chapter 13 of McGraw Hill’s Indoor Air Quality Handbook provides further guidance.
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Building Regulations 2010 Approved Document F Volume 2, 2021 edition
O N L I N E V E R S I O N
Edition and local adoption determine which requirements apply. Use the publisher’s document for the complete clauses, diagrams and amendments.