Ecological Building Systems technical specification advisor Dave Judd looks at airtightness, active moisture control and effective ventilation in passive house properties.

New radon maps, launched by the Environmental Protection Agency today at the National Radon Forum, show an increased risk from radon in Ireland, with 170,000 homes now predicted to be at risk of radon exposure above the national reference level.

Coventry University research has found that 40 per cent of primary school classrooms examined in a study did not have an adequate ventilation rate to combat the spread of Covid-19.

Evidence is emerging of endemic non-compliance with ventilation requirements for new homes under Part F of the building regulations.

A new analysis of the exposure of London households to indoor pollutants highlights “systematic inequalities” in exposure, overwhelmingly driven by factors beyond the control of those people worst affected.

Nilan has developed a new app that allows users to control their ventilation system and heat pump directly from their mobile phone. The feature now comes as standard on all of the company’s popular Compact P combined heating and ventilation systems.

Proper ventilation has been recognised as an important quality for school buildings at least since the Victorian era. But, in the current pandemic, have we lost sight of the role of ventilation?

Residential retrofits must ensure ventilation is carefully considered in order to avoid an increase in radon gas levels, researchers at NUI Galway in Ireland have found.

Industry-leading mechanical ventilation company BEAM Vacuum & Ventilation has launched a new mobile phone app for their award-winning, next generation HERU heat recovery ventilation range.

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.

In the early stages of the Covid-19 crisis, there was little official recognition that airborne transmission was a risk. Has that view changed, and what role will building ventilation play when winter approaches?

Leading energy assessment experts BERCerts.ie are now offering ventilation validation services under Part F of the building regulations after two of the company’s employees were added to the NSAI list of registered ventilation validators.

NZEB consultancy Evolved Energy Solutions is now offering ventilation validation services for domestic building projects after company director Brian Sweeney was added to the NSAI list of registered ventilation validators.

The government is building cross-party retrofit commitments to ensure a long-term and continuous programme of retrofit work, Passive House Plus has learned.

When it comes to air pollution, we tend to worry most about things like traffic fumes and solid fuel burning — or when it comes to indoor air, condensation, damp and mould. But one of the biggest threats in the air we breathe comes from something we are exposed to almost every day, but rarely think about: cooking. John Hearne reports on the evidence for how cooking affects indoor air quality, and what we can do about it.

In the early stages of the Covid-19 crisis, there was little official recognition that airborne transmission was a risk. Has that view changed, and what role will building ventilation play when winter approaches?

A new report by the Passivhaus Trust has questioned the common assumption that mechanical ventilation with heat recovery (MVHR) is inappropriate in dwellings with air permeability worse than 3 m3/m2/hour.

The World Health Organisation is set to imminently publish revised guidance on ventilation as part of its Covid-19 infection prevention and control (IPC) guidance in healthcare settings, Passive House Plus has learned.

The airborne transmission of COVID-19 may be a risk in enclosed spaces with air recirculation or poor fresh air ventilation, with one study concluding that airborne transmission may have occurred in 48.3% of people in a poorly ventilated office and 34.3% of passengers on an air conditioned bus.