Sap Calculations Redbridge

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So, Exactly What Are Sap Calculations

If you are reading this, you have probably recently been requested by someone, normally your building control representative, to supply sap calculations for your building project.

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

 

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Redbridge SAP Calcs For Dwelling Change Of Use

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

  • Carbon Emissions Reports
  • Heat Loss Calculations
  • Free Advice
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Redbridge 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 its the UK government’s method of calculating the energy performance of properties. The calculations are necessary to illustrate that your building conforms with specified energy targets set down in the building regulations.

That’s basically it in a simple summary.

 

When Are SAP Calculations Needed?

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

1. For extensions that have more than the permitted amount of glazing
2. For all newly built homes
3. For a dwelling change of use, such as altering a commercial building to domestic flats.

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.

Sap calculations are done by a certified and approved On Construction Domestic Energy Assessoror OCDEA for short. There is no need to visit the property because all the calculations are carried out from the building plans . An EPC or Energy Performance Certificate can be produced after the calculations are completed.

Your Assessor can provide you with further guidance if the calculation show your building isn’t compliant, as well as inform you which will be the best improvements to make. It’s crucial that you liaise with your Assessor as early on in the project as possible because when the building is finished any non-compliances could be quite costly to rectify.

If you need advice on a project you could have in , or require a quotation, contact us or fill in our get a quote form.

 

Rather than trawl through a entire website to get the answers you’re trying to find, we have given answers to the ten most common queries asked about SAP in Redbridge.

So, Exactly What Are Sap Calculations

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

How Much Do Sap Calculations Cost

If there are several properties with similar forms of constructions, then discounts may apply. For single properties you would be looking in the region of £120 – £300 dependant upon the intricacy of your building and also the dimensions. By supplying the plans, it will be possible to get yourself a fixed price quotation.

What’s The Difference Between Sap and EPC

Before we explain the difference, here is what you will need 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 effectiveness of a dwelling. An EPC or Energy Performance Certificate is a summary report derived from the Sap calculations which produces a SAP score from 0 to 100. This score is shown on the EPC as A the highest to G the lowest. It will also list recommendations which would improve the rating of your property.

There are really two kinds of EPCs. First is a SAP EPC which is produced from building plans when all the elements of the building are known. This would normally be required by building control to show that the dwelling complies with specified targets essential to the building regulations. Building control would must also see the SAP calculations which shows in greater detail whether all the components going into the property conform to the building regulations.

The second form of EPC is the typical one that would be required for anyone who is selling, or renting out a property. This kind of EPC uses what’s called rdSAP, which is short for Reduced Data Standard Assessment Procedure, which is used where particular thermal values of, for instance, the walls, roof, floors, etc, usually are not precisely known on an established property. In this case assumed thermal values are used according to the age of the property. This particular EPC would be no use to show compliance with any building regulations. Sometimes building control would simply ask you for an EPC, but what they would really need to have are the Sap calculations (which is the data behind the EPC) and the SAP EPC (which is actually summary report of the Sap calculations).

If you are still perplexed, then simply contact us to get more assistance.

What Are As Built SAP Calculations

These are the finished set of SAP calculations created when the building has actually been completed to hopefully demonstrate that it is compliant with Part L1A of the building regulations. Ahead of the project starting, it ought to have had a set of “Design Sap” calculations to show that the planned construction, on paper at least, would be compliant with Part L1A.

 

 

How To Do Sap Calculations

Unfortunately this is not some thing you can do by yourself. Sap calculations need to be done by an On Construction Domestic Energy Assessor or OCDEA, using approved Government software programs. The Assessor must be certified under one of several accreditation schemes and is regularly audited to maintain their certification.

What Info is Required 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 prove compliance with Part L1A (Conservation of fuel and power in new dwellings) of the building regulations.

 

Sap Calculations For Extensions

It’s now trendy to have large bi-folding doors, sky lights and large quantities of glazing on new extensions. But with 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 within the property will have to be made to demonstrate that the CO2 emissions coming from the existing house along with the planned extension is no worse when compared to the existing house and an extension whose glazing is within the allowed amount judged against Part L1B of the building regulations.

You need SAP calculations to find solutions and illustrate compliance.

 

Sap Calculations For Conversions

For anybody 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.}

 

Will 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 checklist is not exhaustive. Phone us, if you are uncertain 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 Redbridge . We also cover the whole of the UK and can help on any project nationally.

Reliable & Fully Insured

You will be assigned a dedicated Assessor who is also covered by full professional indemnity insurance of up to £100,000 and that 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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