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SPB Sustainability approaches sustainability in a holistic way, understanding the equal important of the environmental, social and economic aspects of any design.

First reduce demand as much as possible through architectural passive measures appropriate to local climate, site constraints & building use which:


> Minimises heating loads by reducing thermal losses from building fabric & uncontrolled air leakage, while using passive solar gains where appropriate.


> Minimises cooling loads by reducing thermal gains, especially solar gains through appropriate levels of glazing & shading


> Maximises use of passive cooling, from the free cooling of natural ventilation, night time ventilation & exposed thermal mass


> Maximises use of natural daylight to reduce use of artificial lighting.


When it comes to low carbon design SPB Sustainability adopts a strict hierarchical approach, while recognising the importance of maintaining occupant comfort levels, as follows:

Secondly, reduce demand through careful choice of energy efficient plant & equipment which:


> Uses low grade heat/ energy to minimise high grade energy generation


> Maximises equipment efficiencies to reduce amount of delivered energy required to satisfy energy demand


> Adopts controls which only allow equipment & fittings to be active when required, to reduce power consumption


> Provides adequate occupant adaptive controls to extend occupants thermal neutral zone & reduce energy demand


Finally, only when demand has been reduced as much as possible should low carbon & zero carbon decentralised energy generation options, appropriate for the required energy profile & location, be assessed to provide as much of the remaining energy demands required, in order to progress towards zero carbon solutions.

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