Nets to protect windows from typhoon damage
I've seen the nets &amp; in your case without eaves, which I agree with. You'd have to have deployable locking arms to swing out in order to catch whatever, but nets have very large gaps &amp; therefore I wouldn't be sure of any success claim's credibility.

But, are you sure it's a Real Architect? It doesn't sound like one to me. See if they've heard of Shutters. There are Shutters of every kind for everything &amp; yes they're hurricane or typhoon resistant &amp; even proof. You just shut &amp; lock them, this also works for when you evacuate, I mean go away on vacation.

There are hinged door swing type Shutters, that even come in bi-fold &amp; tri-fold sizes for 6-foot &amp; more openings. There are slide Shutters for just smaller window sized openings. There are roll-down style shutters that are the same as what you see when a store closes for the night for all sizes of openings.

Shutters are better because they don't have gaps nor flex like a net &amp; don't have to be stored anywhere or installed in a panic. They can even be motorized &amp; bulletproofed &amp; painted.