One Stop Shop Scheme, Co. Meath ‘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 2022 One Stop Shop Scheme, coordinated by KORE Retrofit and supported by the Sustainable Energy Authority of Ireland (SEAI).
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Case Study Details
Project Name: One Stop Shop Whole Home Upgrade in Co. Meath
Products Used: External wall insulation, attic insulation, floor insulation, under-floor heating, Hitachi air-to-water heat pump, Blauberg mechanical heat recovery ventilation system, double glazed windows & doors.
Contractor: McGowan Builders
Project Coordinator: KORE Retrofit Ltd.
KORE Project Manager: Aine Finlay
Achieving A2
With a Pre-BER (Building Energy Rating) of G, and a post-BER rating of A2, this energy upgrade project included in the 2022 One Stop Shop Scheme is now a modern, energy-efficient, comfortable and healthy home.
This G-Rated home had a primary energy rating of 578.68kWh/m2/yr, and 144.06 kg/CO2/m2/yr carbon dioxide emissions indicator.
The post works final results came in at 40.09 kWh/m2/yr for primary energy use and 5.13 kg/CO2/m2/yr for the carbon dioxide emissions indicator, resulting in an overall energy rating of A1.
Upgrading Ireland’s Housing Stock
Located in Co. Meath this 1930's home was included in the 2022 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, mechanical heat recovery ventilation system, heat pump, underfloor heating, and new double glazed windows and doors. KORE Retrofit Ltd. provided project management services, design solutions, technical expertise, quality control services and full grant administration.
Breaking down the details
Wall Insulation
150mm of KORE external wall insulation was installed on the existing building using the Baumit external wall insulation system. 60mm cavity wall insulation was installed on all newly built walls, with 82.5mm internal wall insulation. Best practice and high-quality workmanship ensured that repeating and non-repeating thermal bridges were eliminated or kept to a minimum.
Attic Insulation
400mm of mineral wool was installed in the attic, 200mm between the joists and 200mm over the joists. On the slopes of the new extension is 150mm mineral wool insulation, installed between the joists and 72.5mm insulated plastered board underneath.
Floor Insulation
150mm 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 7kW Hitachi 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.
Ventilation
Blauberg Komfort 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
uPvc double-glazed low energy windows were installed, with new ultratech doors at the front and rear.
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