The glass lifts and bridges
create a visual link for users
and visitors of the building to
the atrium and office levels
The inward and outward slopes are at a
6º angle. In order to ensure brickwork stability,
façade columns were cast at these angles with
intermediate ring beams to which the brickwork
could then be tied back to.
Sustainability
Various sustainable building principles have
been incorporated in the building. These include
electrical light sensors, LED light fittings,
water saving sanitary and brassware. The
façade maximises natural daylight into the
building and external views out of the building.
The west glare into the atrium is controlled
through aluminium louvres which are built into
the unitised façade system.
The top two levels which house executive
boardrooms have motorised blinds on the
western façade.
Lifts
There are 4 lifts within the building. They are
destination controlled, meaning that when
calling the lift the passenger enters his destination information before entering the lift. The
advantage of destination control is more
effective movement of passengers into and out
of the building, particularly in peak periods. VVVF
Green Technology - Variable Voltage, Variable
Frequency (VVVF) has been used. The VVVF lift
drive employs frequency inverter technology
that regulates input voltage and frequency
throughout the journey, drawing much less
current during acceleration and deceleration.
HVAC - Ventilation
The Basement levels are all ventilated via twin
extraction fans in the north east and south west
corners to allow for the best possible cross
ventilation. The Parking levels are all ventilated
using natural cross ventilation from the aboveground openings.
The Office levels are cooled via two Aircooled chillers with on-board pump sets that
reside on the well organised roof level. The
chillers provide chilled water to all fan coil units
on all floors. The fan coil units are hidden within
the ceiling space and supply the conditioned air
to each area.
The Fan coil units are linked to the Crestron
room control touchscreens through the BMS
(Building Management System) which controls
the lighting music and air-conditioning to each
room (to the occupied levels) and floor.
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85 Grayston