Housekeeping
• Provide regular cleaning concentrating on
HVAC equipment and building spaces to
remove contaminants from building prior
to occupancy
• All coils, air filters, fans and ductwork shall
remain clean during installation and, if
required, will be cleanedprior toperforming
the testing, adjusting and balancing of the
systems
• Suppress and minimise dust with wetting
agents to sweep compounds. Utilise
efficient and effective dust collecting
methods such as a damp cloth, wet mop,
or vacuum with particulate filters, or wet
scrubber
• Low-odour cleaning agents should be used
• Remove accumulations of water inside the
working areas. Protect porous materials
such as insulation, gypsum boards, drywall,
etc. from exposure to moisture
• Thoroughly clean all interior surfaces prior
to replacing filters and runningHVAC system
for system balancing, commissioning and
building flush-out
Pathway Interruption
• Provide dust curtains or temporary
enclosures to prevent dust from
migrating to other areas where
applicable
• The edge of the temporary barrier
would be taped continuously
• Provide temporary walk-off mats
and floor protection to prevent
pollutants from tracking into other
adjacent occupied spaces
• Locate pollutant sources as far
away as possible from supply ducts
and areas occupied by workers
when feasible. Supply and exhaust
systems would be shut down or
isolated during such activity
• During construction, isolate areas of work to prevent contamination to clean or occupied
areas. Pressure differentials would be utilised to prevent contaminated air from entering
clean areas
• Depending on weather, exhaust contaminated air directly to the outside during
installation of VOC emitting materials
Process
• Top-down approach in coordination
with major structural modification of
49/- 50/F
• Time saving as it allowed time for
podium modification
Technique
• Low noise demolition methods, e.g.
core and burst, saw cut, mechanical
scissors etc.
• Minimise impact on building users
Technologies
• Electrical elevated platform to allow
flexible installation
• Time and cost savings as no
scaffolding was needed
Choice of materials
• Based on LEED (Leadership in
Energy and Environmental Design)
requirements
• Maintain existing building structure
to minimise use of materials
• Use of regional materials
• Use of materials with recycled
contents
• Use of materials with low
contents
Quality workmanship
•
team of consultants
and contractors representatives
• They were dedicated to high-risk
management, e.g. curtain wall panel
production
Figure 3.1.53 Original China
Resources Building
(Source: China Resources Property Limited)
Figure 3.1.54 China Resources Building under construction
(Source: China Resources Property Limited)
Figure 3.1.55 China Resources Building
after renovation
(Source: China Resources Property Limited)
DESIGN STAGE
3.1.12 Construction Noise and Pollution Control
Office
UNIT
HVAC (Heating, Ventilation and Air-
conditioning) System Protection
• When performing construction activities that produce
dust such as drywall sanding, concrete cutting,
masonry work, wood sawing or adding insulation, seal
off the supply diffusers and return air system openings
completely for the duration of the task
• Shut down and/or seal off the supply diffusers and
return air ducts during any demolition operations
• Performduct inspections upon completion; if the ducts
become contaminated due to inadequate protection,
clean the ducts professionally
DESIGN STAGE
3.1.12 Construction Noise and Pollution Control
Office
BUILDING
Case study of
China Resources
Building:
Construction Noise and
Pollution Control
Construction process, technique,
building technologies, choice
of materials and quality
workmanship.
Contaminant source control
• Use low
to reduce potential
problems
• Also exhaust pollution
sources to the outside
with portable fan system.
Prevent exhaust from the
building re-circulating
back
• Keep wet products in
closed containers. Cover
or seal containers of
waste materials that can
release odour or dust
• Protect stores on-site or installed absorptive building
materials fromweather andmoisture; wrapwith plastic
and seal tight to prevent moisture absorption
• All finish materials (such as carpet, tiles, paint, etc.) to
be covered or contained before and after installation.
All waste materials have to be covered or contained
Scheduling
• Schedule high pollution
activities that utilise high
VOC level products to
take place prior to the
installation of highly
absorbent materials
(such as gypsum wall
board, fabric furnishings,
carpet and insulation, for
example)
• These materials will act as
‘sinks’ for VOCs, odours
and other contaminants,
and release them later
after occupancy
Protection to
common corridor
Protection to
lift lobby
Protection to
LG/F corridor
Protection to
LG/F lift lobby
Figure 3.1.56A Protection to
existing air duct
Case study of Hong
Kong Green Building
Council Office:
Construction IAQ Management Plan
The Construction IAQ Management
plan is a proposed measure which
ensures indoor air quality (IAQ) will not
be affected due to construction work.
The objectives of this plan is to:
• Minimise exposure of construction
workers to air pollutants
• Prevent air pollutants from collecting
in building systems and on building
materials
• Prevent air pollutants caused by
construction from migrating into
adjacent occupied spaces
Figure 3.1.56 A to D Construction IAQ
Management Plan
(Source: Hong Kong Green Building Council)
Figure 3.1.56B
Figure 3.1.56C
Figure 3.1.56D
52
53
