Sustainability Strategy

                                                                           6




2.0 Climate Change Mitigation

To mitigate further impacts of climate change the development plans to be designed and operate in a manner to reduce carbon emissions
related to energy consumption, waste, water, construction materials and transportation.

2.1       Energy Efficiency

It is well established that the energy use of a building is generally the greatest contributor to greenhouse gas emissions. The following
sections set out design strategies utilised for this development to reduce the building’s energy demand and greenhouse gas emissions.

2.1.1     Shading

Shading is a critical component of the building design. Large overhangs, both vertical and horizontal, will be incorporated, and the north
facing glazing should aim to reduce the amount of direct solar radiation for all times during the year. The development provides shading to
the glazed facades by means of extended floor plates, shading and semi-enclosed balconies.

2.1.2     Glazing and Fabric Performance

The proposed high-performance glazing provides solar control to prevent summer heating while allowing useful passive solar heating in
winter. The low U-value of the glazing would minimise the conductive loss or gain. These result in an improved thermal comfort, improved
energy rating and subsequently a reduced overall carbon footprint of the development.

Similarly, thermal bridging is the transference of heat through a wall at a point through which it can bypass the insulating layers of the
structure. It is through these points in a building’s envelope that they can experience unwanted heat gains and/or losses and as such should
be considered when designing for sustainability and energy efficiency. The architectural and structural detailing on the project will consider
the issue of thermal bridging and will apply design principles to avoid unwanted heat losses or gains wherever possible through thermal
breaks and other measures.

2.1.3     Airtightness

Airtightness is the fundamental building property that impacts infiltration and exfiltration - the uncontrolled inward and outward leakage of
outdoor air through cracks, interstices, or other unintentional openings of a building, caused by pressure effects of the wind and/or stack
effect. The development will be designed with airtightness in mind for architectural detailing and specification to limit air leakage from the
building envelope elements such as glazing systems and external walls.

2.1.4     Air Conditioning

Following the reduction in the thermal loads, an efficient air
conditioning system will be included in the development. This
system has been chosen for its ability to only operate on a room
by room basis. This means that when rooms are un-occupied,
they can be complete switched off, unlike larger systems which
will have minimum operational requirements.

These systems will be coupled with a smart room control
system which will ensure the rooms aren’t overtly conditioned
when unoccupied or when the rooms are operating in natural
                                                                        Figure 1: Room control system
ventilation mode.

2.1.5     Lighting

All lights will be fitted with light emitting diodes (LEDs), including lighting in the corridors, stairwells, garage, and external lighting. The room
lighting will be coupled with a smart room control system which will ensure the rooms aren’t lit when unoccupied. All common area lighting
will incorporate light controls such as occupancy sensing (PIRs) and time switches to reduce lighting consumption when lighting is not
required.



The Calile Hotel, Noosa | Sustainability Strategy | RPT-SY-001 | 1036421