It's assumed that most home inspectors are fairly knowledgeable and keep up on the building products, but sometimes we just have to use common sense.
I emailed the company, but since I was on a deadline for my report, I called the customer service line where I was told, "our wood casements can be installed in the awning position". Then my email was replied to, and it said: "Installing casement windows in a awning window orientation is not recommended. These products are not tested to perform or operate when installed incorrectly."
The company also followed up with an email 2 days later stating: "After speaking with our product team, they were unable to confirm, from the picture provided, if the window is an awning window or a casement installed in an awning application. That being said, they did confirm that our casement windows should not be installed as an awning window."
So, sometimes you, or your inspector may just have to go on instincts... and you may not get a definitive answer before needing to make a decision. But at the very least the client should always be made aware of a potential concern.
ASHI Certified, Pinnacle Inspections strives to give our clients the best reporting and advice. They regularly ask "how" to get things done, and hopefully we can share some useful tips or products on this blog.