Sap Calculation Company Bromley

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Exactly What Are Sap Calculations

Have building control, or your architect asked you to get sap calculations. Why will you need them and what exactly are sap calculations anyhow? Then keep reading.

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

 

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Bromley SAP Calcs For Dwelling Change Of Use

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

  • Carbon Emissions Reports
  • Heat Loss Calculations
  • Free Advice
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Bromley 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 it is the united kingdom government’s procedure for calculating the energy efficiency of dwellings. The calculations are necessary to demonstrate that a building conforms with specified energy targets set down within the building regs.

In a brief overview, that’s more or less it.

 

When Are SAP Calculations Needed?

Here are most of the reasons you may well be asked for sap calculations

1. For all new homes
2. For a dwelling that’s changed its use, such as altering a commercial building to residential flats.
3. For extensions that have more than 25% 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.

The calculations will be done by a professional and accredited On Construction Domestic Energy Assessoror OCDEA for short. There is not any need to visit the property because all of the calculations are carried out from the building drawings ,so a good set of plans are required. When the calculations are done, an Energy Performance Certificate or EPC can also be created.

If the sap calculations show that your property isn’t compliant, the Assessor will give you recommendations on upgrades which can be made to make it so. It’s essential to liaise with the Assessor as early on in the project as possible because once the building is finished any non-compliances could possibly be quite costly to rectify.

If you require guidance on a project you could have in or around , or simply require a quote, contact us or fill in our get a quote form.

 

Rather than trawl through a entire website to get the explanations you’re searching for, we’ve provided explanations to the 10 most typical queries asked about SAP in Bromley.

Exactly What Are Sap Calculations

This is quite possibly the most common query asked. Have a look at Andrea’s video explanation above, or read the full explanation here on the right.

Sap Calculations, How Do They Cost

This can differ considerably dependant upon the size and complexity of the dwelling, however an average cost range would be between £120 – £300. There may be another cost of approximately £50 if an EPC is called for at the end of the construction. Special discounts would typically be available for multiple properties especially when they are of the identical type of structure.

What’s The Difference Between Sap and EPC

Before we explain the difference, this is what you will require depending on your project.

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 show the energy efficiency of a property. EPC is short for Energy Performance Certificate and it’s a summary statement from the SAP calculations in an straightforward report, which could also be used to sell or rent out a property.

There are actually 2 types of EPCs. First is a SAP EPC that is produced from building plans when all of the components of the construction are known. This will normally be needed by building control to show that a dwelling meets specified targets required by the building regulations. Building control would also have to see the SAP calculations which shows in detail whether all of the components going into the property conform to the building regulations.

The second sort of EPC is the standard one that will be needed for anyone who is selling, or renting out a property. This type of EPC uses what’s called rdSAP, which is short for Reduced Data Standard Assessment Procedure, which is used where specific 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 the property. This type of EPC would 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 data behind the EPC) and the SAP EPC (which is actually summary report from the Sap calculations).

If you are still confused, after that phone us for further information.

What Are As Built SAP Calculations

These will be the final set of SAP calculations generated when the building has been completed to confirm that it is compliant with Part L1A of the building regulations. Prior to the project starting, it should have had a set of “Design Sap” calculations to show that the proposed building, in theory at least, would be compliant with Part L1A.

 

 

Can I Do The Sap Calculation Myself

No, this is not some thing that you can do yourself. The calculations have to be carried out by an On Construction Domestic Energy Assessor or OCDEA, working with approved Government software. The Assessor must be certified under one of the certification schemes and is also 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

All new dwelling need to have Sap calculations to show compliance with Part L1A (Conservation of fuel and power in new dwellings) of the building regs.

 

Sap Calculations For Extensions

It’s now quite modern to get large bi-folding doors, sky lights and large quantities of glazing on new extensions. However with the latest building regulations the quantity of glazing must be no more than 25percent of the floor area of the new extension. Therefore over compensations in the thermal elements in other areas within the property will have to be made to show the CO2 emissions from the existing house along with the proposed extension is no worse when compared to the existing house and an extension whose glazing is within the permitted amount judged against Part L1B of the building regulations.

You will need SAP calculations to find solutions and show compliance.

 

Sap Calculations For Conversions

When you are 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 to have 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 list is not exhaustive. Phone us, if you are unsure if you need them.

 

Our Services

What You Can Expect From Us

Trusted & Experienced

Our Assessors are fully qualified and accredited with several years practical experience carrying Sap calculation in Bromley . We also cover the whole of the UK and can help on any project nationally.

Reliable & Fully Insured

You will be allocated a dedicated Assessor who is also covered by full professional indemnity insurance up to £100,000 which means 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 seek to provide 100% satisfaction and look forward to working with you.

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