I always opened my windows wide on hot afternoons to cool the house: the day I closed the south-facing shutters before 10 a.m. instead, I understood what I had been letting in for years
For thirty summers, opening windows wide on scorching afternoons felt like relief—until one morning of closed shutters revealed the truth. The solution isn’t about windows open or closed, but understanding when to do each, and protecting south-facing glass from outside, not in.