SAP Calculations
Part L of the Building Regulations is now arguably the most crucial thing to get right from the beginning of your project. Email your drawings to us and we will provide you with a quote and talk you through any concerns that you may have. We have over 30 years of experience in doing SAP calculations and are without doubt the right company to get you through this difficult part of the Building Regulations.
Don’t take our word for it, check out our reviews!
The SAP rating depends upon a range of factors that contribute to energy efficiency;-
Material used in the construction; Thermal Insulation of the building fabric; Air leakage ventilation characteristics of the dwelling and ventilation equipment; Efficiency and control of the heating system(s); Solar gains through openings of the dwelling; The fuel used to provide space and water heating, ventilation and lighting; Energy for space cooling if applicable – where the dwelling has a fixed air conditioning system ratings are not affected by the geographical location; Renewable Energy technology
The latest edition of SAP has incorporated the following key changes;-
Climate data has now been extended to allow calculations using regional weather: An allowance for height above sea level is incorporate into external temperature data; CO2 emission factors have been extensively revised; Fuels price and primary energy factors have been revised; The options for heat losses from primary pipe work have been extended; additional thermal bridge details
The rating is not affected by living habits for the occupying household, eg;
Household size and composition; other electrical appliances eg; washing machines; Individual heating patterns and temperatures.
We can provide SAP calculations for:-
New build properties
Refurbishments & conversions
Extensions and highly glazed areas
It is a requirement to complete and submit the SAP calculations and building regulations compliance report before you start to build. The earlier you consider the SAP calculation and its implications the more likely you are to comply with the building regulations.
Part L is difficult to comply with. We are experts that will listen to your individual needs, providing you with the best solution based upon your requirements.
WHAT OUR CLIENTS SAY...
New Dwellings
Design Draft Sap Calculations are required by building control before you start building.
Drawings for Planning Permission / Building Regulation Approval including design specification are required (see Planning / Building Regulation page). Detailed drawings and specifications are sent to us and are measured up and the data is entered into the SAP program.
We will consult and explain any modifications necessary to comply.
Once the building is completed all data used in the Design SAP will need to be checked and signed off.
Air pressure test result / certificates are needed for lodgement of the EPC.
DESIGN FINAL SAP Calculations are produced
That any assumptions adopted in the design have been achieved.
The boiler / heating details are checked and updated.
AS BUILT DRAFT calculations are produced that incorporate these changes (final chance to make amendments) after checking the AS BUILT FINAL calculations are locked into the SYSTEM – lodging the Energy Performance Certificate
Building Regs reports are generated an EPC is produced and uploaded into the official Register.
Details and notes are retained – occasionally these are externally audited to ensure standards are maintained within the scheme.
See also our page on Part L Building Regulations