Provider of accredited SBEM calculations for CO2 emissions, as set out in Building Regulations Part L2A and L2B.
Overview of SBEM - Simplified Building Energy Model
Since April 2006, all new buildings have required an assessment that rates the energy-efficiency. This involves calculations that estimate annual carbon dioxide (CO2) emissions.
The calculations should be carried out by an accredited Energy Assessor, qualified to produce Energy Performance Certificates for buildings other than dwellings. Please make sure to check the credentials of anyone carrying out this work.
SBEM Calculations Requirements
The requirements for these calculations are set out in Part L2A of the Building Regulations, which covers all new buildings other than dwellings. Regulations 17A, 17B, 17C, 17D, 17E, and 20D provide the basis for the requirements. The calculations will normally use the Simplified Building Energy Model, or SBEM.
Part L2B of the Regulations, covering construction works on existing buildings, may also require SBEM calculations in some circumstances.
Software for SBEM Calculations
To comply with the Regulations, an approved software package must be used. The most common software is the iSBEM interface from BRE.
At least 90% of all non-domestic buildings can be assessed using the iSBEM software. However, where a building has special features (such as an atrium) or advanced building services not included within the iSBEM database, it will be necessary to use a DSM (Dynamic Simulation Model). Please make contact for advice on whether iSBEM is suitable for a particular building. If iSBEM is unsuitable, you will need to source a provider competent to use a DSM.
Fees for SBEM Calculations
It is not possible to provide cost estimates for this work, without receipt of drawings, including elevations and sections. These can be posted, or you can email dwg and dxf (Autocad) format drawings. Some outline details of HVAC, CHP, and renewable systems are also needed.
A fee can be agreed once the required information is received, and plans have been examined.
Please note that a substantial amount of information is required before SBEM calculations can be carried out. For a list of information sufficient for most buildings, see SBEM Checklist document. You will need Adobe Acrobat Reader to open this document.
Alternatively, you can make contact by phone or email to obtain further guidance on SBEM.
