What is a Louvered Roof?

Attached white and gray pergola sitting over cement slab patio with outdoor furniture

Not everyone is familiar with the term “louvered roof.” Well, at the risk of sounding redundant, a louvered roof is a roof made up of louvers. Of course, the question to ask now is…

What is a Louver?

A louver is a horizontal slat that’s angled to admit light and air, but keep out rain, direct light and, to some extent, noise. Louvers originated in the Middle Ages as crude wood constructions fitted into holes in the roofs of large kitchens to allow ventilation but keep out rain and snow. Modern louvers can be made of aluminum, metal, wood, or glass. Even if you never knew what it was called, you probably see some type of louver every day since they are commonly found in window blinds and shutters. The angle of the louvers may be adjustable or fixed. Many louvered roofs feature fixed angle louvers. Our product is unique because, not only do its louvers adjust, but its slats rotate a full 180 degrees. They can be opened and closed either manually or through motorized operators.

Arcadia’s Louvered System

Our louvers bring superior ventilation and rain protection to your patio. When the louvers come together in the closed position, they form functional rain channels. Our rain channels are larger so they can take more water before spilling over. During these recent downpours, our competitors’ smaller rain channels haven’t been effectively repelling the excessive precipitation.  Rain fills up their small channels, coming up over the lip and flooding the patio below. Many of these same competitors use thin, shoddy aluminum or steel that easily starts to rust. We use extruded, thick gauge aluminum that stands up to bad weather and stays rust-free for years and years. So if you’re looking for a well-made louvered roof with functionality and plenty of options, look no further than Arcadia.


In addition to protecting your patio from rain, our louver system serves to improve your outdoor living environment by letting you control its temperature and lighting. The adjustable louver system can limit harsh brightness and redirect sunlight no matter where the sun is in the sky. In some positions, the vented angle of the louvers can naturally cool off the air on your porch or patio. Last but not least, though louvers are generally seen as a practical element in the language of modern architecture rather than an aesthetic one, we think they look pretty great, too.

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