Walking through the streets of many historic centers or residential neighborhoods, you’ve probably noticed windows with curved exterior grilles. But what is their purpose, and why aren’t they straight like more common ones? Let’s find out.
Curved Grilles: A Choice That Combines Safety and Practicality
Curved grilles, also known as rounded or belly grilles, are metal bars installed on the outside of windows, featuring a distinctive outward-curving shape. This design isn’t just an aesthetic detail—it serves very specific functional, practical, and architectural purposes.
What Are Curved Grilles For?
Here are the main reasons why some windows feature curved bars:
1. They Increase Usable Space
The outward curve creates extra space between the window and the grille, allowing you to:
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Place flower pots or plants
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Open the windows fully without obstruction
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Let in more natural light
2. Greater Security
Curved bars are harder to tamper with than flat ones. Their shape makes it more difficult to use levers or burglary tools, improving protection against break-ins.
3. Traditional Aesthetics
In many historic towns or period buildings, curved grilles are an architectural element consistent with the style of the façade. Often made of wrought iron, they add a classic, decorative touch that enhances the building’s character.
Where Are They Most Commonly Found?
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