UK blogs - passivehouseplus.ie

In the aftermath of COP26, Dr Peter Rickaby asks what is the government’s plan to deliver the deep, whole-house, quality-assured retrofits needed to get us to net zero by 2050?

The energy crises of the 1970s did not prompt a major shift in Europe from foreign oil and gas towards energy efficiency and renewables. Will we learn this time around, wonders Dr Marc O Riain

There has been a sleuth of recent reports on how to retrofit Britain’s existing homes, but we must think deeper than the practical matter of reducing energy and carbon, to how we create beautiful places to live, writes Peter Rickaby.

Marc O Riain explores how policy on both side of the Atlantic in the 1980s sabotaged a nascent revolution in renewables and energy conservation.

As the stringent fabric-first, low energy standard enters its fourth decade, Guy Fowler asks what sort of impact it has made on the world, and where it should go from here.

How do underlays manage to let water vapour through while keeping the rain out? Toby Cambray delves into the physics…

While there is much debate about whether we should prioritise retrofitting homes or installing heat pumps, the climate crisis means we may not have a choice but to do both as fast as possible, writes Toby Cambray.

In his latest column on the history of low energy building during the 20th century, Dr Marc Ó Riain looks back at the Saskatchewan House, which was built in Canada in 1977, and established the principle of prioritising energy demand reduction over active systems.

Insulating our homes is critical and must be our first priority, but how do we get the rest of the way to zero carbon? Dr Peter Rickaby investigates the options…

The Green Homes Grant scheme failed because politicians failed to heed more than a decade of lessons about how to do retrofit well, writes Dr Peter Rickaby, and now there will be an even bigger hill to climb.

Building physics expert Toby Cambray finds himself unconvinced by the merits of a new home in the Netherlands that has been 3D printed with concrete.

In his latest column, Dr Marc Ó Riain takes a look back at the some of the first projects to address the phenomena of thermal bridging and thermal bypass in buildings.

A chance purchase on eBay leads buildings physics expert Toby Cambray to admire the aesthetics and mechanics of old scientific instruments.

The concept of building back better and greener, popular early in the pandemic, is now in danger of being abandoned in the rush to return to ‘normal’ — but we always have the power to shape what normal is, writes Dr Peter Rickaby.

In his latest column, Dr Marc O’Riain looks back at two American prototypes for the passive house standard that embraced heat pump technology as well as principles of superinsulation and airtightness.

With increasing attention turning to cutting carbon emissions from existing homes to meet carbon reduction targets, Duncan Smith, housing asset and energy strategy manager at Renfrewshire County Council in Scotland, argues that approaches which improve comfort and dramatically reduce energy bills must be front and centre.

Toby Cambray writes on the many lessons that the inimitable biscuit cake can teach us about how building materials deal with moisture.

Duncan Smith reflects on the social and architectural significance of Glasgow's tenement flats, and their potential place in a zero carbon future, as the city prepares to host COP 26. 

The Green Homes Grant scheme failed because politicians failed to heed more than a decade of lessons about how to do retrofit well, writes Dr Peter Rickaby, and now there will be an even bigger hill to climb. 

Condensation within the structure of buildings is a lot more complex than condensation in a sweaty pub on a Friday night, writes building physics expert Toby Cambray.

As governments rush to jump-start their economies, there is a danger that important lessons for how to retrofit homes will be lost in the rush to build. But there is a better way, writes Dr Peter Rickaby.

Returning to his regular series on the evolution of sustainable building during the 20th century, Dr Marc Ó Riain takes a look at the first serious attempt to build a house with net zero energy use.

How do ventilation filters work, and can they help to protect us against Covid-19? Toby Cambray weighs in on the physics of a subject that is more complex and interesting than you might expect.

Taking a temporary detour from his series of columns on the history of sustainable building and renewable energy, Dr Marc Ó Riain takes a look at Covid-19 from the perspective of Gaia theory, and at the relationship between collapsing ecosystems and the emergence of new infectious diseases.

The UK government has committed to a legally binding target of being “net zero carbon” by 2050. Peter Rickaby ponders the steps needed to get there, and what the goal means for our homes, offices and other buildings.

While the green wave visible at ballot boxes and street marches in 2019 reflects an apparent escalation in public consciousness on the need for urgent, decisive environmental action, the roots of today’s environmental consciousness stretch back over half a century, explains Dr Marc Ó Riain.

We are in the grip of a global emergency. The science is clear, and thousands of lives have already been lost. The public are demanding firm and bold leadership, but a laissez-faire attitude on the part of western governments has delayed and watered down our response, with calamitous consequences.

What forms does sexism take in the construction industry, asks builder Em Appleton, and what can we do about it?

What are the consequences for the built environment, and the climate, of the lack of communication between research and industry, asks Dr Peter Rickaby – and what can be done about it?

In the latest instalment of his series on the development of energy efficiency and renewable energy in the 20th century, Dr Marc Ó Riain reports on the seismic impact caused by the 1973 oil crisis.