The Powerscourt and Moynalty National Schools, located in Enniskerry, County Wicklow and Kells, County Meath respectively, are both PassivHaus scheme projects. The core focus of the PassivHaus Standard is to dramatically reduce the requirement for space heating and cooling, whilst also creating excellent indoor air quality and comfort levels.
The design for the schools incorporated renewable energy technologies and energy efficient features such as a very well-insulated and a virtually air-tight structure where energy losses were minimised. As a result, the heat demand required for the building was provided by an extremely small source. Avoidance of heat gain through shading and window orientation also helped to limit any cooling load, which was similarly minimised. A heat recovery ventilation system was also installed to provide a constant and balanced fresh air supply into the classrooms.
Axiseng was commissioned as the lead services engineering consultant to design and manage the projects from inception to completion.
The overall implementation consisted of performing manual and computer assisted engineering computations to ensure specific design criteria are met, as well as rigorous scheduling with the design and construction teams at regular site meetings to monitor the progress of the projects and provide technical solutions to project specific issues. Upon completion, the developments provided the local communities a sustainable educational facility for students and teachers.