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BEAM P
LUS FOR
E
XISTING
B
UILDINGS
I
NDOOR
E
NVIRONMENTAL
Q
UALITY
(I
EQ
)
V
ERSION
1.2
I
EQ
13 V
ENTILATION IN
C
OMMON
A
REAS
Copyright © 2012 BEAM Society Limited. All rights reserved.
Page 131
B
ACKGROUND
Building owners should consider the provision of ventilation to common
areas, such as corridors, lift lobbies, entrance lobbies, etc. [4]. Where
design constraints render the provision of natural ventilation not feasible,
mechanical ventilation should be provided to improve the indoor
environment. Good practices when designing mechanical ventilation in
public areas require:
the ventilation system to be capable of providing sufficient fresh air
taking into account the anticipated population;
intake and exhaust points be properly designed to prevent
contamination of fresh air supply and avoid short-circuiting; and
the ventilation system and its associated ductwork, where provided,
should be conveniently accessible for maintenance.
Ventilation for bathrooms, kitchens, refuse rooms, etc., as covered
elsewhere in BEAM, may be sources of pollution affecting common
areas.
4
Buildings Department. Practice Note for Authorized Persons, Registered Structural Engineers and Registered
Geotechnical Engineers, PNAP No. ADV-26 Ventilation of Common Corridors and Lift Lobbies in Buildings.
http://www.bd.gov.hk/english/documents/pnap/ADV/ADV026.pdf