The imperative to engage in evidence-based deep retrofit grows by the day. With the UK government dragging its heels, Peter Rickaby finds signs of hope in local initiatives, and in burgeoning Irish efforts.

In his third column on visionary eco-buildings of the 20th century, Dr Marc Ó Riain looks at the pioneering passive solar designs of Fred Keck.

The net effect of poor insulation levels, underheating and under-ventilation in buildings poses a major public health threat. Peter Rickaby describes one pioneering London project that’s taking a practical, methodical – and scalable – approach to solving the problem.

Inertia with state-owned land is exacerbating Ireland’s housing crisis, argues housing commentator and architect Mel Reynolds, in spite of the state possessing enough zoned land to make a major dent in solving the problem.

At SEAI's 2018 deep retrofit conference, there are signs that action to overhaul Ireland's outdated, inefficient building stock is gradually moving forward 

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

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.

It is simply not possible for developers to build housing in cities like Dublin and sell it for a reasonable price without making a loss, writes architect Mel Reynolds — instead, we need meaningful affordable housing schemes.

Innovations in low energy building were spurred in the 20th century by oil crises, but the political impetus for meaningful change receded once the crises ended, explains Dr Marc Ó Riain, bringing an attendant failure to set meaningful building regulations.

The penny is starting to drop that profound energy saving efforts in buildings – right up to zero emissions levels – are both necessary and urgent if the UK is to honour its climate change targets. So what’s holding up meaningful action, asks Peter Rickaby?

Design-and-build contracts have become increasingly common in construction, a trend that must be reversed in light of the Grenfell Tower fire if we are to deliver safe and high quality buildings, says quantity surveyor Michael McCarthy.

London encouraged to adopt its own building energy standard.

The private speculative sector can’t build affordable housing, but there are other ways of achieving this, writes architect Mel Reynolds.

With Ireland’s housing crisis continuing to escalate, government policies may be further exacerbating the problem, argues Mel Reynolds.

In the current policy vacuum, many questions have been raised about the future of sustainable construction. Despite this uncertainty, there is a steady growth of interest in the AECB Silver Standard, writes architect Mark Siddall.

We must discard the architectural baggage of the 20th century to solve 21st century problems – argues our columnist Marc Ó Riain – and relearn some lessons from before the advent of oil.

ISH, the world’s biggest showcase for bathroom design, heating, air-conditioning and renewable energy technology, took place last week in Frankfurt. Leading energy consultant Mark Shirley of 2eva.ie went along to see what was on offer.

We all do, argues Dr Peter Rickaby, but the goal of mass retrofitting our energy inefficient building stock is hampered by the fact that when it comes to most retrofits, we simply don’t know what we’re trying to achieve.

At first glance, designing out electrical fans from ventilation strategies may appear attractive, and even sustainable. Simon McGuinness offers some home truths.