A motorised louvered roof works by rotating extruded aluminum blades up to about 135 degrees on a shaft running the length of the beam. A tubular motor inside the beam turns the shaft;

Bioclimatic pergolas win on climate control and year-round use — motorized blades manage sun, rain, and airflow, and recoup 50–80% of their cost at resale. Traditional pergolas win on budget ($1,500–$5,000 vs. $8,000–$30,000+)