The louvered pergola is fully waterproof when closed. Once the rain has passed, the water will have drained away in a controlled manner via the integrated drainage channels.

Vernazza recommends adjustable or louvered pergola roofs as the ideal design ... Adams says: "Here, the homeowner installed electric heaters on both ends of her Chicago rooftop steel pergola ...

RENSON's Aero is a louvered roof that can be added to new ... which keeps it in tune with any architectural style. This pergola with tilting louvers creates a pleasant environment for patios.