From the Construct Ireland archives

Air-tightness is a key factor in any low energy build, but is often overlooked in comparison to energy sources and insulation. Lenny Antonelli examines how air-tightness is achieved in buildings, from design stage down to the final sealing

Of huge importance to our national identity and one of the major features of the rural Irish countryside are the derelict small cottages, scattered across the land, that have long fallen into ruin. Often situated in Irelands most beautiful and remote areas, Terry Cunningham, Rural Enterprise Adviser of the Southern Tipperary office of Teagasc sought to revitalise and fully utilise these charming and unique dwellings from our past.

Energy efficiency is about more than just U-values – the building envelope must be airtight and virtually cold bridge free. Construct Ireland visited a single-leaf concrete house nearing completion in Moate which combines an excellent envelope with wind, solar and a range of green measures, with the aim of reducing energy and carbon figures to zero in the home’s BER score.

The development of sustainable building in Ireland has had to wait for the public to become concerned about energy supply, climate change, and the implications of living in draughty, damp buildings.  Much of the established low energy know-how emanates from countries where cold winters drove innovation. Drawing from 50 years of research and development between the Canadian government and housing industry, the Super E programme may be just what Ireland needs, as John Hearne discovered at a new development in Rosslare.

‘‘We have a body of extremely experienced and competent staff who will be able to hit the ground running”

Ron and Collette Wardle started suffering ill health almost immediately after a sloppy energy upgrade. But reading a copy of Construct Ireland started a chain of events that led to the couple getting a brand new ventilation system — and seeing a marked improvement in their health.

Economic analysts are starting to warn of the threat rising oil prices pose to Ireland’s recovery prospects. Richard Douthwaite argues that energy efficiency and renewables investments must be central to government plans, and explains how more than 100% of the cost of energy investments may come back to the exchequer.

It is not alone as an artist and historical author of distinction that Peter Pearson is noted.  His role as a conservationist in the last three decades has had a tangible effect in protecting Ireland’s built heritage, and raising consciousness of the value and importance of conservation work

When it comes to redeveloping old buildings, green designers face two choices: replace existing structures with modern, energy efficient buildings or refurbish and avoid the embodied energy and waste of demolition and new construction. Lenny Antonelli visited a redeveloped convent in Booterstown, County Dublin that combines the best of both approaches.

Designed and patented by Irish firm NuTech Renewables, solar enhanced ventilation aims to bring big energy and cost savings to the retrofit market by combining solar and ventilation technologies. NuTech’s Bill Quigley explains how it works.