Glasnarget Ridge
14 November 2011 |
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Challenge
In 2007, Randy Ralston and Mel Cronin bought a dormer bungalow in Rathdrum, Co Wicklow. Refurbishment began soon after they bought the 35 year old house, which had seen better days. The main goals for the projects where to create an environmentally friendly house, low running costs, freedom from what Randy calls the "petroleum addiction loop", and to inspire others to go green. Naturally, they also wanted a comfortable and beautiful home.The legacy issues associated with the shape and orientation of the existing building with its large envelope surface area to volume ratio, meant that achieving high levels of airtightness was an extremely difficult task.
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Project Name:
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Glasnarget Ridge | |
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Project Address:
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Rathdrum, Co. Wicklow | |
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Category:
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Renovation Residential | |
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Entrant:
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Integrated Energy, Archie O Donnell | |
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Company
founded in:
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2009 | |
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Company Address:
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53a Rathgar Avenue, Dublin 6 | |
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Company
Contact
details:
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Phone: 353(0)876843171;
Email: archie@integrated.ie;
Web: www.integrated.ie
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Architects name:
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Planning by Corkish Maguire Partnership, Wicklow Enterprise Park,
Technical Architect Archie O’Donnell,
Foundation system design by Viking House and Hilliard Tanner Engineer.
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Specialities:
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Passive House Construction Technology | |
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Building
Type:
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House Private Dwelling, Outsulated cavity wall + Timber frame
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Size m2:
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300m2 | |
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No of Floors:
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2
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No of Units:
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1 | |
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Construction date:
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Sept 2010 |
Technical Strategy
A whole house or systems approach was taken to determine the most cost effective approach to achieving the highest possible standards of thermal comfort, healthy breathable materials and a long life components. An evidence based approach to decision making was adopted early on and the specification was developed through the rigorous use of Passive house software and analytical tools for calculating heat loss due to cold bridging and assess vapour diffusion. In parallel toolbox talks were conducted on site with blower door, smoke cannon and thermographic camera to demonstrate to on-site trades the crucial importance of attention to detail in the workmanship needed for passive levels of performance.
Performance
Energy Usage: 17.9 kWh/m²
BER: A1
Air tightness: 0.97 m3/h.m²
U-Value for windows: 0.8
U-Value for roof: 0.14
U-Value for ground: 0.12
U-Value for walls: 0.14
Team photo
