Bill Dunster's opinion (5 September, page 11) is another example of a lack of continuous professional development.
Global climate change is already having a serious effect on block, brick and concrete structures as they crack under ground shrinkage and heave.

Modern steel frame modular buildings use far less energy to heat or cool them because of their low thermal mass and high insulation values. We have come a long way since living in caves.

Postscript

Simon Reffell, Wernick Buildings, Neath.