The brief
- Tom, one of our technicians, completed the L1B SAP Calculation for this proposed extension in Stevenage which had excessive glazing (>25% of the floor area)
The process
- UK Building Compliance assisted with the specification of the Glazing U-Value, Thermal Insulation and heating system
- This was to ensure that the notional dwelling was more efficient than the proposed dwelling which is a requirement in order to demonstrate Part L1B compliance
THE RESULT
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Compliant
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Reduction in Dwelling Emission Rating (DER) and Dwelling Fabric Energy Efficiency (DFEE) beyond Notional Standards
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Compliant with Part L Building Regulation Standards
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The Predicted EPC showed a rating of high C for energy efficiency and mid C for environmental impact - good for a property of this age