One Stop Shop ‘A2’ Retrofit, Donegal.
KORE Retrofit case studies offer an inside look at energy upgrade projects in real-world applications. This retrofit was part of the 2024 One Stop Shop Scheme, coordinated by KORE Retrofit and supported by the Sustainable Energy Authority of Ireland (SEAI).
Case Study Details
Project Name: One Stop Shop Whole Home Upgrade in Clonmany, Co Donegal
Products Used: Internal wall insulation, attic insulation, Thermia ground source heat pump, triple glazed windows & composite doors, and mechanical ventilation
Contractor: B.Donaghey & Sons Ltd
Project Coordinator: KORE Retrofit
KORE Project Manager: Aine Finlay
Achieving an A2 BER
With a Pre-BER (Building Energy Rating) of E2, and a post-BER rating of A2, this energy upgrade project included in the 2024 One Stop Shop Scheme is now a modern, energy-efficient, comfortable and healthy home.
This E-Rated home had a primary energy rating of 361.95kWh/m2/yr, and 113.77kg/CO2/m2/yr carbon dioxide emissions indicator.
The post works final results came in at 35.02kWh/m2/yr for primary energy use and 4.55kg/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. Donegal this 1940s home was included in the 2024 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 and attic insulation, heat pump, mechanical heat recovery ventilation, and new triple glazed windows & doors. KORE Retrofit Ltd. provided project management services, design solutions, technical expertise, quality control services and full grant administration.
A Complete Home Energy Upgrade
Wall Insulation
70mm of PIR internal insulation was installed on the inside of all walls of the house, with 12.5mm plasterboard. Best practice and high-quality workmanship ensured that repeating and non-repeating thermal bridges were eliminated or kept to a minimum.
Attic Insulation
300mm of mineral wool was installed in the attic, between the joists, providing comfort and efficiency in the attic space.
Heating System
KORE installed a Thermia Calibra Eco 8 ground source heat pump, providing heating via a renewable source, eliminating the use of fossil fuels, while decreasing carbon emissions. New radiators and heating controls were installed throughout the home.
Ventilation
Vent Axia mechanical heat recovery ventilation was installed to provide superior indoor air quality that adjusts the rate of air exchange based on needs, including advanced settings for wet rooms such as the kitchen and bathroom.
Windows and Doors
Triple Glazed uPvc windows were installed in the home, with a composite front door and one at the rear of the property.
For more information on being included in the One Stop Shop Scheme, please visit our whole home energy grant page for further detail.
Aine Finlay, Architectural Project Manager
Aine Finlay has worked as an architectural project manager with KORE Retrofit since 2021, with previous experience working as an architectural project manager for many years. With a background in health & safety, management and architecture, Aine is responsible for KORE Retrofit’s One Stop Shop scheme and Northern Ireland’s Sustainable Energy Programme. You can reach Aine by email or by phone at +353 87 427 5727
