From the day we found out that our walkout would be under the deck, I have considered ideas on how to install some kind of overhead structure that would funnel the drain water away giving me a covered patio.
Then my wife found this:
I think it will fit the bill quite nicely.
For those that wonder about cost, I got a quote today from a lumber yard that carried Timber Tech. For my 14'x12' deck, it will cost $585.50 +tax .