One Stop Shop Scheme, Dublin ‘A2’ Case Study
KORE Retrofit case studies offer an inside look at energy upgrade projects in real-world applications. This retrofit was part of the 2023 One Stop Shop Scheme, coordinated by KORE Retrofit and supported by the Sustainable Energy Authority of Ireland (SEAI).
Fully Managed and Coordinated by
Supported By
Case Study Details
Project Name: One Stop Shop Whole Home Upgrade in Dublin
Measures Undertaken: External wall insulation, internal wall insulation, attic insulation, floor insulation, underfloor heating, Mitsubishi 11.2kW air-to-water heat pump, double glazed window, 3.6 kW Solar PV system
Grant Aided: Internal wall insulation, floor insulation, 11.2kW Mitsubishi Heat Pump & underfloor heating on ground floor & radiators upstairs, attic insulation top-up to 300mm, Solar PV 3.6kW system
Non-Grant Aided: External Insulation (required to meet minimum HLI, but only one wall measure grant aided under scheme rules
Contractor: Carrickmaquigley Construction Ltd
Project Coordinator: KORE Retrofit Ltd.
KORE Project Manager: Aine Finlay
“We are really pleased with the professional service provided by KORE. From start to finish they were on hand to make sure our retrofit was carried out to the highest standard in order to ensure we achieved an A2 rating.”
Achieving A2
With a Pre-BER (Building Energy Rating) of D1, and a post-BER rating of A2, this energy upgrade project included in the 2023 One Stop Shop Scheme is now a modern, energy-efficient, comfortable and healthy home.
This D1-Rated home had a primary energy rating of 250.02kWh/m2/yr, and 53.02 kg/CO2/m2/yr carbon dioxide emissions indicator.
The post works final results came in at 25.61 kWh/m2/yr for primary energy use and 3.28 kg/CO2/m2/yr for the carbon dioxide emissions indicator, resulting in an overall energy rating of A2.
Upgrading Ireland’s Housing Stock
Located in Co. Dublin this 1960's home was included in the 2023 One Stop Shop Scheme, part-funded by SEAI, to undergo whole home energy-efficiency upgrade works. The grant provided by SEAI helped fund the energy efficiency upgrades including wall, floor and attic insulation, heat pump, underfloor heating, solar PV system, and new double glazed windows. KORE Retrofit Ltd. provided project management services, design solutions, technical expertise, quality control services and full grant administration.
Breaking down the details
Wall Insulation
100mm of KORE external wall insulation was installed on the existing building using the Stomix external wall insulation system. 90mm internal wall insulation was installed on the front walls of the home. Best practice and high-quality workmanship ensured that repeating and non-repeating thermal bridges were eliminated or kept to a minimum.
Attic Insulation
200mm of mineral wool was installed in the attic, between the joists and over the joists, completing the top up of insulation to 300mm. The trap door was insulated with 100mm of PIR board, with pipe lagging and a new cold water tank jacket also installed.
Floor Insulation
130mm of floor insulation was installed, with 50mm screed with underfloor heating. Completing a whole insulation approach for wall, roof and floor applications, eliminating thermal bridging, and ensuring heat loss is kept to a minimum.
Heating System
KORE installed a 11.2kW Mitsubishi Electric Eco Dan air-to-water heat pump, providing heating via a renewable source, eliminating the use of fossil fuels, while decreasing carbon emissions. Underfloor heating was installed downstairs, with new radiators and heating controls upstairs.
Windows and Doors
The home had sufficient energy efficient double glazed windows and doors already installed, with an addition of one double glazed uPvc low energy roof window installed in the kitchen roof.
Solar PV System
A 3.6kW Jinko Solar PV System was installed on the roof with a 3kW Huawei inverter. This renewable energy technology provides free, green energy to the home, complementing the renewable heat pump system, and enabling the home to reach an A2 building energy rating. The house now runs on electricity only, and energy generated from the solar panels.
For more information on being included in the One Stop Shop Scheme, please visit our whole home energy grant page for further detail.
Seamus Leahy, Project Manager
Seamus Leahy has worked as a project manager with KORE Retrofit since 2023, with previous experience working as an project manager for over two decades. With a background in property management, facilities & construction, Seamus is responsible for KORE Retrofit’s One Stop Shop scheme. For more information on the scheme, please contact the sales team on +353 49 437 4002.