Sap Calculation Services Hackney

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So, Just What Are Sap Calculations

If you are reading this, you’ve probably been recently asked by somebody, typically your building control officer, to provide sap calculations for your building project. But you probably haven’t been told what sap calculation actually are and why you need them.

You can either click on the video recording on this page, where Andreas will shed some light on this, or read on.

 

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Hackney SAP Calcs For Dwelling Change Of Use

  • Reports for Part L1B Compliance
  • SAP EPC
  • Free Advice
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Hackney SAP Calcs For Overglazed Extensions

  • Carbon Emissions Reports
  • Heat Loss Calculations
  • Free Advice
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Hackney SAP Calcs For New Builds

  • Reports for Part L1A compliance
  • SAP EPC
  • Free Advice

What does SAP mean?

SAP is short for Standard Assessment Procedure and is the UK government’s method of determining the energy performance of buildings. These calculations are necessary to prove your building complies with specified energy targets set down within the building regulations.

In a brief overview, that’s basically it.

 

When Are SAP Calculations Needed?

The three main reasons Sap calculations are required

1. For all new properties
2. For a dwelling change of use,for example altering a single family home to residential flats.
3. For extensions that have over 20% glazing

There are two main targets that the sap calculations are required to demonstrate. Firstly that the dwelling emission rate (DER) and the dwelling fabric energy efficiency (DFEE) comply with certain targets.

A good set of construction drawings will need to be provided to the Assessor, as all the calculations are done from the building drawings . Your Assessor will advise you of precisely what is needed. An EPC or Energy Performance Certificate is usually produced after the calculations are done.

If the sap calculations show that your property is not compliant, the Assessor will give you suggestions about upgrades that may be made to make it so. It is very important to liaise with your Assessor as early on in your project as possible because when the building is completed any non-compliances might be quite costly to rectify.

If you require guidance on a project you could have in , or require a quotation, give us a call or fill in our get a quotation form.

 

Here we have presented the most typical questions asked about SAP Calculations in Hackney.

So, Just What Are Sap Calculations

This is certainly by far the most frequent question asked. Take a look at Andrea’s video explanation above, or read the full explanation here on the right.

Sap Calculations, How Much Are They

This may vary considerably dependant upon the size and complication of the property, however an average price range will be between £120 – £300. There will probably be a further cost of around £50 if an EPC is required at the end of the build. Discounts would typically be available for multiple properties especially when they are of the same form of construction.

What Is The Difference Between Sap and EPC

Before we explain the difference, here is what you will require depending on your job.

For a new build property you’ll need – SAP calculations and an EPC.

For dwelling change of use or conversion you’ll need – Sap Calculations and an EPC.

For overglazing on an existing dwelling you’ll – Sap calculations only.

SAP or Standard Assessment Procedure are the calculations of pre defined data set of a buildings design that’s put together to demonstrate the energy effectiveness of a property. An EPC or Energy Performance Certificate is a overview report created from the Sap calculations that produces a SAP rating from 0 to 100. This rating is expressed on the EPC as A the highest to G the lowest. It will also list recommendations that would enhance the rating of the property.

There are actually 2 kinds of EPCs. First is a SAP EPC that is created from building plans where all the elements of the building are known. This will normally be needed by building control to show that the property meets specified targets required by the building regulations. Building control would must also see the SAP calculations which illustrates in greater detail whether the many components going into your property comply with the building regulations.

The second variety of EPC is the common one that will be necessary for anyone who is selling, or renting out a property. This particular EPC uses what’s called rdSAP, which is short for Reduced Data Standard Assessment Procedure, which is used where particular thermal values of, for example, the walls, roof, floors, etc, usually are not precisely known on an existing property. In this instance assumed thermal values are used based on the age of your property. This kind of EPC will be no use to show compliance with any building regulations. Sometimes building control would simply ask you to get an EPC, however what they would really require are the Sap calculations (which is the information behind the EPC) and the SAP EPC (which is a summary report from the Sap calculations).

Still confused, then simply give us a call to get more advice.

What Are As Built SAP Calculations

These are the finished set of SAP calculations created once the building has been completed to show that it is compliant with Part L1A of the building regulations. Ahead of the construction starting, it should have had a set of “Design Sap” calculations to show that the proposed construction, on paper at least, will be compliant with Part L1A.

 

 

Can I Do The Sap Calculation Myself

No, this is not some thing you could do by yourself. Sap calculations need to be carried out by an On Construction Domestic Energy Assessor or OCDEA, by using approved Government software programs. The Assessor has to be certified under one of several accreditation schemes and is regularly audited to keep up their certification.

What Info is Needed For Sap Calculations

Your Assessor would advise you of exactly what is needed. Typically you would need the following:

  • Floor Plans to include sections and elevations
  • Orientation of the property
  • Construction specification of walls, roof and floors
  • Specification for all doors and windows
  • Primary and secondary heating
  • Provision for providing  hot water
  • Any renewable technology (if any)

 

Sap Calculations For New Build

Every new property need to have Sap calculations to prove compliance with Part L1A (Conservation of fuel and power in new dwellings) of the building regulations.

 

Sap Calculations For Extensions

It’s now modern to get large bi-folding doors, sky lights and large amounts of glazing on new extensions. But under the present building regulations the quantity of glazing can be no more than 25percent of the floor area of the new extension. Therefore over compensations on the thermal elements in other places of the property will need to be made to show the CO2 emissions from the existing house and the proposed extension is no worse than the existing house and an extension where the glazing is within the permitted amount judged against Part L1B of the building regulations.

You will require SAP calculations to find solutions and demonstrate compliance.

 

Sap Calculations For Conversions

For anyone who is changing the use of a building, you will need Sap calculations. {The new dwelling will have to comply with Part L1B of the building regulations.}

 

Do I Need Sap Calculations

You will need Sap calculations for any of the following: 

  • Building a new property
  • Changing the use of an existing property (e.g, a barn conversion, commercial building to residential)
  • Extensions with more than 25% glazing
  • Opening up the main house to an existing conservatory
  • Extension where the extension is more than 50% of the original property wall area
  • Garage conversions
  • If requested by building control

This is not an exhaustive checklist. If you’re unsure whether you require them, then simply give us a call.

 

Our Services

What You Can Expect From Us

Trusted & Experienced

Our Assessors are fully certified and accredited with years experience carrying Sap calculation in Hackney . We also cover the whole of the UK and can help on any job nationally.

Reliable & Fully Insured

You will be assigned a dedicated Assessor who is also covered by full professional indemnity insurance up to £100,000 to ensure you know you’re in save hands.

Prompt Service

We’ll respond to your enquiry within 24 hours. We’ll also help you to deliver your project within your timescale.

Satisfaction Guaranteed

We aim to provide 100% customer satisfaction and look forward to working with you.

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