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SAP Calculations or “standard assessment procedure” are a mandatory building regulation requirement. The Government have made SAP calculations to calculate the energy performance of domestic dwellings. SAP calculations need to be conducted on all new residential developments, extensions and conversions and a score on a scale between 1 – 100 will be issued after the calculation has taken place. If a lower score is issued this will indicate a higher energy running cost for the dwelling being tested. The fundamental reason SAP calculations are conducted on new build developments is to calculate how to design the most efficient building.
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Do I need a Standard Assessment Procedure Calculation?
SAP calculations are completed in two separate ways (L1A and L1B). If you are in the process of developing a domestic new build dwelling, conversion or extension you will more than likely require a SAP to complete your EPC (Energy Performance Certificate) and sign off the building regulations.
L1A SAP calculations are performed for all new build developments, whereas the L1B SAP calculations are specifically aimed at extensions and conversions.
In order to sign off building regulations an EPC certificate must be issued. One main component that makes up the EPC is a SAP calculation. As the focus on the conservation of fuel and power has increased over the years, the government made it a legal requirement in 1995 that an EPC must be issued before renting or selling a property in the UK.
A number of factors are taken into account when calculating a SAP. These will have an impact on the final score you achieve. Some of these are:
Ventilation Test and Air Tightness Testing results.
Type of building materials and thermal insulation used to construct the dwelling.
Instalment of renewable energy technologies e.g. thermal heat pump, solar panels.
Productivity and governance of the buildings heating system.
Method of heating water and preference of space, ventilation and lighting.
Productivity and control of heating system.
Factors that determine Standard Assessment Procedure Scores
Passing Standard Assessment Procedures
Successfully reaching the score you need to pass your SAP calculation is reliant on a set of components which our experienced SAP assessors have multiple years of experience dealing in. Our aim is to guide you through building compliance with as little stress as possible.
Don’t hesitate to get in touch with one of our dedicated team members now.