The old-school way of keeping the summer heat out of your home

Summary

On hot summer afternoons, Mediterranean cities go quiet. The streets are emptied by heat so intense that even the shadows seem to move slowly. The climate has inspired regional traditions such as the Spanish siesta, which is as much about respite from oppressive temperatures as it is about resting. The same logic once informed architecture too, giving buildings cooling physical features including shutters that allow in light while keeping the heat out. Today, in our glass-sealed, climate-controlled structures, it’s easy to forget that both our daily rhythms and our architecture used to work with the weather, not against it. As the effects of climate change intensify, we need to reconsider more humble forms of temperature control. Here are five shutter designs that are well worth revisiting. 1.‘Persiane alla genovese’, Italy In the busy alleys of Genoa, the persiane alla genovese protect from the heat while also enhancing privacy. These shutters consist of louvred panels divided into two parts, which are opened in sequence: the bottom at dawn and the rest near dusk. The lower part is called gelosia (“jealousy” in Italian), a nod to the idea of protecting what’s inside from the gaze of the street. The shutters are painted green, making the streetscape look balanced and uniform. From inside, you can look out when either the top or bottom is open, while passersby on the exterior side see only a coherent landscape of green windows. 2.‘Jalousies’, FranceThe French had a similar idea and came up with jalousie shutters. The name also comes from the word for “jealousy” but, unlike the Italian persiane, these shutters are more voyeuristic and have a greater focus on looking out without being seen. Those inside are able to peer through the gaps, with the slats deflecting any gaze from the street. Jalousies first appeared in Marseille, where they were often painted white or in a sun-faded sage. Both were practical selections, with the white reflecting the sunlight and green hue...