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    SAP Conversions

SAP Calculations / Conversions

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SAP Calculations are required for all new dwellings which are created as a result of a material change of use. The SAP Calculations are used to demonstrate compliance with Building Regulations. Material changes of use include barn and flat conversions.

Once the project is complete the SAP Calculation is used to produce the Energy Performance Certificate for the newly created dwelling.

We pride ourselves in delivering a personal service with a commitment to clear and cost effective advice.

Here are some points to consider before making a final choice of SAP Assessor:

We provide a full consultation service as standard – all the advice and support you need to ensure you get the performance you want.

  • Design Stage and As Built Calculations, as well as Energy Performance Certificates are included in our standard service – there are no hidden extras!
  • Calculations are carried out by accredited and experienced construction professionals – providing cost effective and practical solutions.
  • We have a track record of providing advice to clients that saves thousands of pounds - you can be sure we’re providing solutions that work for you.

Call now to get a quote or discuss your project with one of our SAP Assessors.

Why is a SAP Calculation needed?

As with new build dwellings, the SAP Calculations assess overall thermal efficiency whilst also determining the amount of energy that will required for the internal services such as heating, cooling, lighting and hot water systems. The SAP Calculation also determines carbon (CO2) emissions. Unlike new build properties conversions do not have to fall under any prescribed limit.

As well as demonstrating compliance with Part L1B of the Building Regulations the SAP Calculation is used to produce the Energy Performance Certificate which is required as part of the Building Control sign off procedure whilst also being required for any marketing of the property (for sale or rent).

Why chose us to complete your SAP Calculations?

As with new build dwellings, the SAP Calculations assess overall thermal efficiency whilst also determining the amount of energy that will required for the internal services such as heating, cooling, lighting and hot water systems. The SAP Calculation also determines carbon (CO2) emissions. Unlike new build properties conversions do not have to fall under any prescribed limit.

As well as demonstrating compliance with Part L1B of the Building Regulations the SAP Calculation is used to produce the Energy Performance Certificate which is required as part of the Building Control sign off procedure whilst also being required for any marketing of the property (for sale or rent).

What do I need to provide to the SAP Assessor?

What do I need to provide to the SAP Assessor?

  • Floor plans, building elevation and section drawings;
  • Details of the buildings location and orientation;
  • Specification for the construction of all floors, roofs and external walls;
  • Specification for all windows and doors within the buildings external envelope, including frame material, width of gap (if multiple glazing) and emissivity of glass;
  • Details of the primary heating system (such as the make and model of the boiler) and associated controls;
  • Details of the hot water system, including cylinder size, details of any insulation to the cylinder and pipes, and associated controls;
  • Details of any fixed secondary heating (such as a wood burning stove);
  • Details of any mechanical extract or ventilation systems (for example, the number of mechanical extract fans);
  • The number of standard light bulbs and the number of low energy light bulbs; and
  • Details of any renewable technology, such as solar hot water or photovoltaics.
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Contact us

PB Sustainability Ltd.

Office 64
The Old School
Wallasey, Wirral
Merseyside
CH44 5TN