SAP calculations - New dwellings
Approved Document L1A of the Building Regulations states that all new dwellings must be designed and built to a standard such that the calculated Dwelling CO2 Emission Rate (DER) is no worse than a defined Target CO2 Emission Rate (TER).
Our experienced SAP assessors can guide you smoothly through compliance, providing all the support required to ensure every dwelling achieves a PASS.
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FAST
– maximum 5-day turnaround on all SAP assessments.
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COMPREHENSIVE
– we will provide all the relevant SAP documentation required for compliance with Approved Document L1A (design-stage and as-built submissions), with NO HIDDEN CHARGES.
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L1A 2010
– new Regulations in force from 1 October 2010. New dwellings to emit 25% less CO2 than those assessed under the previous Regulations. We can take the stress out of achieving compliance.
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VALUE
– we aim for every quote to be the most competitive, with large discounts available for multi-dwelling developments.
Call now for a quote.
What is SAP?
The Standard Assessment Procedure (“SAP”) is the Government’s approved methodology for calculating the energy performance of dwellings.
What happens if my dwelling fails the SAP assessment?
Our assessors will be happy to provide you with a free consultancy service, advising you on all necessary amendments to ensure every dwelling achieves a pass.
What affects the CO2 emission rate of a dwelling?
Factors that affect the calculated CO2 emission rate include:
- How well the dwelling retains heat (i.e. the amount of insulation and degree of air tightness achieved);
- The amount of solar gains through windows and doors;
- The type and efficiency of any heating, hot water and mechanical ventilation systems; and
- Whether there is any on-site energy generation (renewable technologies).
How can Energytest help me?
- Fast and accurate SAP calculations at a market leading price.
- Comprehensive advice and support to ensure you arrive at the most economic and feasible solution to compliance.
- Single-source-solution for all your Part L requirements: SAP calculations, air leakage tests, and Energy Performance Certificates upon completion.
What do I need to provide to the SAP assessor?
- Floor plans, building elevation and section drawings;
- Details of the buildings location and orientation;
- Specification for the construction of all floors, roofs and external walls;
- Specification for all windows and doors within the buildings external envelope, including frame material, width of gap (if multiple glazing) and emissivity of glass;
- Details of the primary heating system (such as the make and model of the boiler) and associated controls;
- Details of the hot water system, including cylinder size, details of any insulation to the cylinder and pipes, and associated controls;
- Details of any fixed secondary heating (such as a wood burning stove);
- Details of any mechanical extract or ventilation systems (for example, the number of mechanical extract fans);
- The number of standard light bulbs and the number of low energy light bulbs; and
- Details of any renewable technology, such as solar hot water or photovoltaics.
