Building Regulations require new houses built today must use 60% less energy than a house built in 2005.
At Cairn we take energy performance seriously and ensure our homes are built to maximise thermal efficiency. This is achieved by using high levels of roof, walls and floor insulation leading air sealing products, excellent air tightness levels and low U-value, high performance windows allied with quality construction methodology as standard.
At our new development at Parkside, Dublin 13 our mechanical & electrical engineers estimate the daily heating and hot water bill will average just €4-€6 per day*
*€4 is based on standardised occupancy as per the SEAI (Sustainable Energy Association of Ireland guidelines)
Build tight ventilate right
Building airtight but depending on natural ventilation to maintain satisfactory levels of air quality is an inexact approach. To further improve efficiency and reduce fuel costs, many Cairn homes have Heat-Recovery Ventilation systems (HRV) to distribute air around the house.
Heat recovery ventilation (HRV)
What is it and how does it work?
The HRV unit is fitted in the attic space in your home and is designed to continually supply fresh air into the living areas and bedrooms whilst removing warm moist air (that would assist mould generation) out of the wet rooms such as the utility and bathrooms. Back at the HRV unit the heat is harvested from the warm outgoing air to the incoming fresh air supply, filtered and distributed around the house.
This transfer is highly efficient and ensures that the fresh air being supplied into the house requires the least amount of energy from the heating system. On average most people spend the majority of their time indoors and many illnesses can be aggravated by poor indoor air quality. The HRV System will continuously remove stale moist air from your home creating a healthier environment to live.
The benefits of a HRV system are well highlighted in terms of energy saving and wellbeing and the use of these systems is an established practice in Scandinavian countries where harsher winters are more prevalent and energy conservation is more developed. While the unit does use a small amount of electricity, the amount of energy saved greatly out-weighs the amount used.