The amended Part L2A follows one single route to compliancy, similar to that of the earlier CECM method found as an option under Part L2 2002. This method calculates the energy use of a building in order to measure it against the energy use of a comparable ‘notional’ building from which a target emissions rate is calculated. These calculations of energy usage and carbon dioxide emissions are produced from inputs of building use, geometry, construction, lighting and installed HVAC systems.
Using the building modeling software method, we are able to pre-create the client's building and liasing with architects, reduce project costs substantially by optimising the building construction fabric. We can also foresee any solar gains or sun spots using the thermal modeling software.
The building modeling method requires 3D simulation for a minimum of two buildings, a Notional Building and the Actual Building. Construction of the virtual buildings must only be carried out using approved DSM software. Using the software we are able to fine-tune the modeling/simulation process to the individual needs of the client. We not only support the work of the engineer, but also the architect and developers.
Ce2 routinely carry out building simulations and have since April 2006 incorporated the requirements of the Approved Document L2A.
Our Role:
 Collate information regarding construction details and building layout
Computerised 3D virtual construction of the proposed building
Complete annual 3D simulation of the proposed building with Met Office weather data
Annual Carbon Emission Calculations for the proposed building
3D virtual construction and annual simulation of notional building (as required by L2A) Assessment of Part L2A compliancy
Proposal, if required, for alterations to original design to obtain Part L2A compliancy.
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