Services

Guardian Conservatory Roof wih internal plaster finish

SAP Calculations and EPCs for New Building

When building new homes whether a single dwelling or large scale developments of houses and or apartments you will require a SAP Assessment to comply with Part L1a of Building Regulations: Conservation of Fuel and Power in New Dwellings.

There are two main criteria that you will need to meet to comply with building regulations:

  • The Dwelling Emission Rate (DER) must be lower than or equal to the Target Emission Rate (TER)
  • The Dwelling Fabric Energy Efficiency (DFEE) must be equal to or lower than the Target Fabric Energy Efficiency (TFFE)

For new build projects SAP Calculations should be carried out at the design stage to ensure the specification for the building will pass the SAP Calculations. If for any reason the designed specification does not achieve the required levels to comply we can provide cost effective solutions to ensure the project will achieve compliance.

Our quotation Includes:

  • Design Stage SAP Calculations & Compliance Documents
  • Advice on how to comply
  • U-Value Calculations
  • Predicted Energy Certificate
  • As Built SAP Calculations
  • Energy Performance Certificate (EPC)
  • Lodgement Fee(s)
  • 2 Day Turnaround when required
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SAP Calculations For Conversions

When carrying out a conversion from a commercial property to residential you will require SAP Calculations to comply with part L1B of Building Regulations. We can provide cost effective solutions to achieve compliance.

Our quotation Includes:

  • Design Stage SAP Calculations & Compliance Documents
  • Advice on how to comply
  • U-Value Calculations
  • Predicted Energy Certificate
  • As Built SAP Calculations
  • Energy Performance Certificate (EPC)
  • Lodgement Fee(s)
  • 2 Day Turnaround when required
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SAP Calculations for Extensions and Conservatories

If you are building an extension where the glazing is over 25% of the floor area you will require a SAP Calculation to comply with Building Regulations Approved Document L1B.

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SBEM Calculations (Simplified Building Energy Model)

For new build, conversion or extension of commercial premises you will require SBEM Calculations and Energy Performance Certificates to comply with part L2 of Building Regulations.

  • Design Stage –A design stage SBEM Calculation will need to be submitted woth you Building Regulations application.
  • As-built Stage – An As-built Stage SBEM Calculation and EPC will need to be submitted to building control to achieve final building control approval.
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Air Pressure Testing

Air Pressure Testing is a method of measuring the extent to which air is lost through leaks in your building. Air Pressure Tests are required for new build properties as part of your SAP Calculations.

At design stage we will provide a target Air Pressure test rating that the building will need to be equal to or lower than in order to achieve compliance. The target rate we will suggest will always be achievable.

Please contact us for a quotation.

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Acoustic/Sound Testing

Sound insulation testing must be carried out on new build and converted properties. Building control will usually allow a sample of the project to be tested.

Please contact us for a quotation.

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