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Project · 2021

Extension Calculations — Colwich

Notional Dwelling Fabric Energy Efficiency

Extension Calculations — Colwich

The brief

  • UK Building Compliance completed an L1B Extension Calculation on this proposed extension in Colwich
  • To achieve compliance, the proposed extension must improve the performance of the dwelling

The process

  • Exceeding targets in energy and fabric efficiency required our STROMA accredited consultants to advise the following:

  • Specifying a low U-Value in all proposed and upgraded elements of the property

  • Recommending the installation of an air source heat pump

  • Further suggestions resulted in an efficient MVHR System being implemented

The results

  • SAP RESULTS

Notional Dwelling Emission Rate (DER)

Notional Dwelling Fabric Energy Efficiency (DFEE)

Proposed Dwelling Emission Rate (DER)

Proposed Dwelling Fabric Energy Efficiency (DFEE)

  • Compliant

  • The proposed dwelling is more efficient than the notional dwelling therefore compliant with the Part L Building Regulations

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