Standard Assessment Procedure (SAP) Calculations and SAP EPC in Retford
Our fully accredited SAP Assessors can provide all the calculations required by building control to demonstrate your new build or converted domestic property development in Retford is compliant with the SAP EPC requirements of the Building Regulations UK.
SAP Calculations are needed to demonstrate a domestic properties compliance with part L1 of the Building Regulations UK. This is usually required when building a new dwelling, creating one through a change of use, or when changing the number of dwellings within the envelope of an existing building.
We also provide SAP Calculations for Extensions in Retford. For extensions where the total area of new openings (windows and doors) exceeds 25% of the floor area, building control will require ‘Over-Glazed Extension Calculations’ to demonstrate compliance with part L2 of the UK Building Regulations. We can provide all versions of this calculation finding the easiest path to compliance, and can advise on any changes necessary in cases where compliance cannot be demonstrated.
SAP Calculations are carried out entirely from architectural drawings and technical specifications provided to us by the client, so to quote for your work we will need you to provide us with a copy of the drawings. The calculation itself requires a high level of detail about the material that has gone into the build, including makes and models of insulation used. As this detail is not possible to obtain visually on site, SAP Calculations do not require a site visit, but are instead produced from the information provided.
We advise getting SAP Calculations done initially as ‘design stage SAP Calculations’ , before commencing work on site, so any changes required to ensure compliance can be easily accommodated. The calculation can then be run again on completion in the form of ‘as built SAP calculations’, and your compliance report and SAP EPC will be produced.
In cases where ‘design stage SAP calculations’ have not been produced and the property is already built, we can still produce you an ‘as built SAP Calculation’ and can then advise on the most practical way to achieve compliance in the event that the building fails. When you are ready we can then provide the compliance report and the completed and lodged SAP EPC.
We can also provide other certification services you may require for compliance and building control sign off, including Air Tightness Testing, Ventilation Testing and Sound Testing in Retford and surrounding areas.
Please Contact Us for more information.
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