New patio roof additions have become very popular in Australian cities. Stratco Outback, Spanline roofs and Altec Patios have been marketing the benefits of a covered outdoor entertaining space for some time now.
Unfortunately some of these systems and other more conventional patio roof extensions (as pictured) have not been designed/installed well to accommodate the additional roof sail area tie-down restraint forces required to keep the new roof in place during high wind storm events.