What does it take to achieve an A energy rating?
Posted 31 August 2015
Each time a home in the UK is built, sold or rented, an Energy Performance Certificate (EPC) is required. The home receives a rating from G (least efficient) to A (most efficient), which is a measurement of its carbon footprint, rather than the quantity of energy its inhabitants use.
Older homes, built before the First World War, typically receive an E rating because they were designed before architects and engineers had real insight into thermal efficiency. Even by making modifications such as increased loft insulation or the installation of low energy lights it’s very difficult to improve the EPC rating of an older property.
Trivselhus by Esh rated A
Every Trivselhus by Esh home holds an A-rated EPC – the optimum standard for energy efficiency. This is because we incorporate cutting edge, energy-saving technology into the very fabric of the properties we build. The process begins even before a home is erected: each constituent part is insulated and sealed to ensure protection from the elements.
A number of innovative features also combine to ensure that Trivselhus by Esh homes achieve an EPC A rating. The heating system uses mechanical ventilation to distribute temperate, fresh air throughout the house; the windows are triple-glazed and the airtight doors open outwards to create a seal that only gets tighter when the weather worsens and the wind blows. And thanks to the air source heat pump, warm air is harvested from the exterior of the house to heat water for the underfloor heating and radiators.
As if this weren’t enough, Trivselhus by Esh homes also feature the latest in solar photovoltaics, further reducing the property’s reliance on external energy supplies – even enabling homeowners to create a surplus through careful management of energy usage.
What do energy assessors measure?
Energy assessors study every element of a building before assigning it A rating. They meticulously measure a property’s dimensions and consider its windows and doors, heating system(s), lighting and insulation.
An EPC contains three important pieces of information about a property: its energy efficiency rating, its environmental impact measured in CO2 and an estimate of how much it will cost to heat, light and wash in the home, measured both in financial terms and in CO2 emissions. To attain an A rating in light of such stringent measures is no mean feat. Only the most meticulously designed homes are able to reduce carbon emissions and fuel costs enough to warrant an A rating.
Safeguarding for the future
An A rating is excellent news for the homeowner’s pocket – a truly energy efficient home will save money year after year. But the benefits don’t stop there. In recent years the UK government have emphasised the importance of energy efficiency and sustainability in the future of residential building projects. As the population are encouraged to do more to preserve the environment and reduce their reliance on fossil fuels, it is expected that homeowners will be required to take steps to improve the EPC rating of their properties. In this respect, Trivselhus by Esh homes will ensure that families are protected from the volatility of fluctuating energy prices and changes in legislation.
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