As electricity supply from renewable sources continues to grow, and electricity grids gradually decarbonise as dirtier fossil fuels are phased out, heating homes with electrical technologies like heat pumps starts to make more sense. And in the mild, temperate climate of Britain and Ireland, air source heat pumps are particularly suitable — especially as new build standards of energy efficiency continue to tighten, meaning new homes need less and less energy to achieve comfortable indoor temperatures. But how do air source heat pumps work, what types are there, and how much do they cost to run? Our in-depth guide attempts to answer the key questions.
Architect returns to roots with A1 rated 'house of the people'
Written by Jason Walsh
Architect Tom Duffy has long had an interest in green design, and working on a self-build project for himself and his wife he was able to prove a point: making a modest family home to the highest standards need not cost the earth.
Assessment of thermal bridges is the low hanging fruit lining the path to passive house and low-energy building, according to leading thermal modeller Andy Lundberg of Passivate, who says that taking the time to understand thermal bridging and to minimise and calculate it properly is essential to delivering cost optimal low energy buildings without an Achilles heel.
Ireland's new central bank hits nZEB & BREEAM outstanding eco rating
Written by Ekaterina Tikhoniouk
Rising from the shell of the stalled riverside headquarters of Anglo Irish Bank, Ireland’s financial regulator could be accused of insensitivity for choosing as its new home a site that became a toxic symbol of the banking crisis, but the building is not without virtue: it comfortably surpasses the proposed nearly zero energy building standard while achieving the onerous Breeam ‘Outstanding’ rating for sustainability.
A selection of passive & eco builds from around the world, this issue features a rustic holiday home in New Zealand designed using the key principles of passive house design, and the 26-storey House at Cornell Tech, New York, now the tallest certified passive building in the world.
As understanding grows of the importance to human health of good bacteria in our environment, and new hospitals in the US start to undergo ‘prebiotic’ treatment, Dr Peter Rickaby asks how long it will be before microbiology becomes a core part of building design.
In his second column on visionary eco-buildings of the 20th century, Dr Marc Ó Riain looks at the Dover Sun House, which used a pioneering salt solution to capture and store solar energy
Quality EWI installation crucial for success of deep retrofit — MBC Project
Written by News Desk
MBC Project has warned that poor quality installation risks undermining confidence in the growing external wall insulation (EWI) industry — seen as crucial for bringing Ireland’s housing stock up to modern standards of energy efficiency. Dublinbased MBC Project supplies KABE Therm external insulation systems, which include EPS and mineral wool boards.
G-rated Meath bungalow aims for A rating — without renewables
Written by News Desk
Energy consultant Cillian Donoghue of BERCerts.ie is currently undertaking a retrofit project that will transform a neglected G-rated bungalow in Co Meath into an A-rated dwelling, using a fabric-first approach and without the use of renewable energy.
Daikin pick up five honours at the iF Design Awards
Written by News Desk
This year’s prestigious iF Design Awards saw Daikin Europe’s design skills recognised as the company scooped five awards for their residential heat pump and commercial control solutions at a ceremony in Munich on 9 March.
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Quinn Building Products launches free CPD on single leaf masonry
Written by News Desk
Quinn Building Products has announced a new free CPD (continuous professional development) offering for those in Irish construction, entitled ‘Single Leaf Masonry - A Modern Method of Construction?’ A series of open house regional seminars are scheduled throughout Ireland, and available to book via the Quinn Building Products website.
Even in the era of climate change, there still appears to be something of a split in the world of architects between those who prioritise sustainability, energy efficiency and occupant health, and those who put design and aesthetics first. So it’s refreshing to find that the designer of this contemporary Dublin home put so much attention on insulation, airtightness and indoor air quality — as well as good looks.
Fire compartmentation & timber framed party walls
Written by Simon McGuinness
Is building life cycle assessment about to become easy?
Written by Pat Barry
Establishing a building’s overall sustainability ultimately means quantifying the impacts of the materials used to construct it. Up till now, that’s been a laborious, time-consuming process. That might be about to change, explains Irish Green Building Council CEO Pat Barry.