We were confident that the West facing outdoor covered living space would require mechanical shading devices, but we weren't sure about the South facing area of the deck. The basic principal is that South sun can be shaded with overhangs and the West sun, as it has a low aspect, cannot. We geolocated the house and ran a summer solstice sunrise to sunset study.
The study confirmed our intuitions and the clients elected to forego the additional mechanical shading on the South side.
