This new factory will be compliant with many of the
requirements now in force under the SANS 10400 Part
XA and SANS 204, i.t.o. the National Energy Act that
came into effect on 09 Nov 2011.
MBH Architects, have opted for Green Roofs over the
office components of a proposed new factory
development in Lanseria Corpo-rate Estate, just outside
Johannesburg, South Africa.
Green roofs, will aid by better insulating the roof slab,
thereby effectively reducing energy consumption,
specifically pertaining to HVAC equipment, and especially
during the summer months.
It will also aid in reducing the Urban Heat Island (UHI)
factor, as the lawn and foliage on the roof slabs, will
absorb solar radiation, as opposed to re-radiating it into
the immediate surrounding environment and will so doing
reduce the ambient air temperature around the site
substantially during summer.
GREY WATER HARVESTING
As the estate incorporates a grey water attenuation pond,
permeable pavers, will be used to aid with absorbing and
draining rain water into perforated pipes inside a sump
underneath the parkades, which will filter via a grey water
connection into the estate's grey water reticulation
system and into the atten-uation pond, to be utilised for
irrigation and reflushing of toilets, amongst other uses.
Micro Grey Water storage tanks will also be provided for
each bathroom, to be utilised for multiple toilet flushing,
which will alleviate the demands on potable water
GEO-THERMAL HEAT PUMPS
The HVAC system will be connected to an underground
piped storage network, which will aid with conserving /
regulating the temperature of water to be used in the
space cooling and heating system.
HOT WATER SUPPLY
50% of the hot water supply in this factory, will be
provided by means of renewable sources and this
instance, mainly solar water heating. All hot water
systems will additionally be pumped closed loop systems
of which all piping will be lagged, to reduce heat loss.
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