The rear of our house is west-facing, and the summers were brutal. These pics aren't the best, but they are the best I have right now...The shingles are spliced in, and don't quite match, but being the rear of the house it doesn't bother me too badly.
Here is before:
Here is the awning construction during:
And here is how it is today. Still need to get the pesky gutters up. Lucky we have had a mild winter so far...