SAP/ SBEM Energy Assessments

SAPs and SBEMs are most effectively done at three stages – Draft, Design and Final.

Draft (Part L compliance check, liaison with daylighting design and renewables feasibility), Design (first Building Control submission) and Final / As Built (second Building Control submission) stages.

The most important stage is the Draft stage, because a return to Planning due to high Renewables costs or Part L failure would be disproportionately expensive. A Building Regulations failure should automatically trigger advice from the Energy Assessor on how to comply with Part L1A of Building Regulations, as well as any other requirements, such as BREEAM. Compliance will include a number of aspects:
  1. Proposed CO2 Emissions (kg CO2 /m2/yr);
  2. Design Limits – Worst acceptable U-values; Heating efficiencies consistent with DHCG; HWC consistent with DHCG; Fixed internal and external lighting compliance;
  3. Overheating Risk;
  4. Construction Quality – Key design features included as built; Air permeability standard (based on pressure test certificates carried out by an accredited pressure tester) achieves the rate stated at the Design Stage.

For very high levels of energy efficiency thermal bridging analysis, using specialist software, is strongly recommended. This examines and advises upon a truly consistent level of continuous insulation all round outside of the building – the thermal envelope.

"I have worked with Abba on various projects over the last couple of years, they have always worked efficiently and the assessments provided have been accepted by the relevant local planning authorities. The assessments have assisted in me securing planning permission, which as a planning consultant, is what I require." - Town Planning Bureau

Sensible Energy Saving Tip

30% of the water consumed in the home is flushed down the toilet. You can reduce the amount of water used in each flush by fitting special 'lo-flow' devices, or by contacting your water company for a free 'hippo' or 'hog'. These displacement devices are very simple to install or remove, and save 3 litres per flush.

New Build or Domestic Refurbishment? Call Abba Energy on 020 8208 8333 for expert advice on Sustainable Housing Design and Construction.