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To achieve energy efficiency in practice and compliance with Parts L2 and J, the building and it’s services systems should be appropriately designed and constructed. Information should also be provided such that the energy performance of the building in use can be assessed.
When designing building services installations, provision should be made to facilitate appropriate inspection and commissioning.
In large complex buildings, it may be sensible to consider the provisions for the conservation of fuel and power separately for the different zonal areas of the building in order to establish the measures appropriate to each area.
Further detailed guidance on energy efficiency can be found in the CIBSE Guide of Energy Efficiency in Buildings.
The form and fabric performance of the building plays a vital role in the achievement of in-use energy efficiency.
Optimum energy efficiency can be achieved by utilising the superior lifetime thermal, low air leakage and insulation continuity performance certainty of Kingspan’s roof and wall solutions. This allows the design team to downsize HVAC plant, minimising energy usage and cost levels over the lifetime of the building.
This also achieves lower Carbon Dioxide (CO2) emissions and maximises environmental sustainability for future generations.
The key areas for consideration are:
Heating/Cooling System Efficiency
The heating or cooling system of a building must be designed and installed to make efficient use of energy for the conservation of fuel and power. (refer to Parts L2 and J)
Space Heating Controls
(refer to Parts L2 and J)
Artificial Lighting
(refer to Parts L2 and J)
Air Conditioning, Mechanical Ventilation
Buildings incorporating air conditioning or mechanical ventilation must be designed and constructed so that:
a) the form and fabric of the building do not result in a requirement for excessive installed capacity of cooling equipment; and
b) fans, pumps, refrigeration equipment and other components are reasonably efficient and appropriately sized to have no more capacity for demand and standby than is necessary; and
c) there are appropriate means of managing, controlling and monitoring the operation of equipment and systems.
The requirements for energy efficiency of air conditioning and mechanical ventilation, will be met. (refer to Parts L2 and J)
Inspection and Commissioning of Building Services Systems
* The building services installation must:
a) be capable of operating at the manufacturer’s specified efficiency; and
b) incorporate adequate provisions for testing and commissioning to be carried out satisfactorily.
* Written information must be provided for the building’s occupier on the installed building services plant and controls required to comply with Part L2 and J, their method of operation, state of maintenance, and details forecasting annual energy consumption for the building.
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The requirements as regards the commissioning of the building services, will be met by certifying that commissioning of the installation has been done in accordance with CIBSE Commissioning Codes and BSRIA Commissioning Guides.
The requirements as regards the provision of information for energy efficient operation will be met by a self-contained building log-book containing the following details:
a) a schedule of the floor areas of each of the building zones categorised by environmental servicing type (e.g. airconditioned, naturally ventilated); and
b) the purpose of the individual building services systems; and
c) the location of the relevant plant and equipment; and
d) the installed capacities (input power and output rating) of the services plant; and
e) simple descriptions of the operational and control strategies of the energy consuming services in the building; and
f) operating and maintenance instructions that include provisions enabling the specified performance to be sustained during occupation.
Note: Please refer to Parts L2 and J with regard to building services compliance requirements.
Building fabric insulation and airtightness certainty play a vital role in optimising energy efficiency, lowering energy usage and reducing operating costs over the building’s lifetime.
Additionally, significant capital cost savings can be made by downsizing HVAC plant and services at new build stage.
Kingspan’s insulated roof and wall systems facilitate the construction of energy efficient and low Carbon Dioxide (CO2) emission buildings, providing environmentally sustainable construction.
To achieve the optimum energy efficiency and minimum Carbon Emissions (CO2) levels contact Kingspan’s Technical Design Bureau for project specific HVAC plant, energy usage and CO2 emissions analysis on 01352 716101
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0.03% of CO2 in the atmosphere.
Average temperature: +15°C
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