Calculating indoor infection risk

To understand how ventilation reduces Covid transmission it is important to look at the level of risk as the number of building occupants increases, says Chris Iddon, who introduces a methodology that addresses the difference in personal and population risk

Sponsored roundtable: cooling for life

Decarbonising cooling involves passive design measures, efficient cooling and a robust approach to refrigeration leakage, according to members of a CIBSE Journal roundtable on whole life cooling, sponsored by Daikin

Life enhancing: improving IAQ with smart systems

Exposure to indoor particulate pollution can significantly affect health over a lifetime. Research by Dr Elizabeth Cooper and Dr Yan Wang suggests that the smart integration of automated windows and home air purifiers could improve average life expectancy by six months

Sensible cooling: avoiding overcooling in buildings

When spaces are cooled to uncomfortable temperatures, negative impacts are seen on people’s health and the environment. Tim Dwyer looks at a new paper that attempts to measure the extent of the issue

The value chain: blockchain in the built environment

Blockchain is fuelling the digitisation of the built environment by providing a secure method of data exchange. IN2 Engineering’s Samreet Singh explores how it could revolutionise the use of BIM, energy microgrids and the circular economy

Keeping it clean: award-winning UV-C lighting

The germicidal effects of UV light were discovered in 1877. Now, in the shadow of Covid-19, an application of UV-C is winning plaudits and a CIBSE Building Performance Award. Phil Lattimore reports