Medieval structures were pressed up against each other, which protected them from heat extremes. An engraving showing the Hôtel de Ville of Paris in 1583. Wikimedia Commons: Theodor Josef Hubert Hoffbauer
For Catherine Forbes, a senior associate and built heritage specialist at heritage consultancy GML, the reason why these buildings perform better is because they were built with materials that have higher thermal mass — a building design concept that describes a material’s ability to absorb and store heat.
“Medieval cities have buildings that are very close together, with their long walls [placed] against each other, which actually provides greater protection,” she said.
NSCES member, Catherine Forbes, was recently interviewed by the Australian Broadcasting Corporation article regarding impact of climate change on heritage, specifically following reports voicing concern about the stability of Notre Dame.
Following is the link to the article written by Alan Weedon of ABC News: