shutters - Grannys Tips

Why an unsealed shutter box above a window lets heat into your home

July 15, 2026 by Dorothy Baker

We all insist on keeping the shutters closed during a heatwave: this one overlooked spot above the window lets the heat po...

You’ve closed every shutter tight, but a small insulated box above your window frame is quietly letting hot air pour straight in. French energy experts show this overlooked spot can sabotage 20% of your cooling effort—and the fix costs less than you’d expect.

Why Closing Shutters Can Trap Heat Against Window Glass

July 11, 2026 by Dorothy Baker

I Sealed My Shutters Against the Heat—Then I Touched the Glass and Everything Changed

For years, closing shutters seemed like the obvious way to beat the heat. But when I touched the glass behind them during a heatwave, I realized I’d created a silent oven. The real problem wasn’t the shutters themselves—it was when I closed them, and what I did next.