window insulation

I taped a survival blanket to my window with the silver side facing inward: when I felt what was happening in the room by mid-afternoon, it was too late

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I taped a survival blanket to my window with the silver side facing inward: when I felt what was happening in the room by ...

A reflective survival blanket seemed like the perfect summer window solution—until the silver side facing inward turned an ordinary afternoon into an unbearable hothouse. The trick lies in understanding which side faces which direction depending on the season.

Why Your Grandmother Closed the Shutters at Noon: The Science Behind Her Summer Cooling Secret

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Why Your Grandmother Closed the Shutters at Noon: The Science Behind Her Summer Cooling Secret

For generations, European grandmothers have relied on a counterintuitive summer trick: closing shutters and blocking out the sun. When a brutal heatwave tested this wisdom, the results were undeniable—her sitting room stayed several degrees cooler than the street outside. Here’s the science behind why windows are actually radiators, and how to harness natural cooling.