Thank you patchap.
This is a confusing choice, I am glad that there are pros out there that can help make a better choice.
If there is a direct to deck product at the same price point I think I would go with direct to deck.
The url above mentioned that the logic behind battens is somewhat suspect.
By the picture it looks to be hidden.
The videos that I saw online of people taking a panel and drilling 18 exposed holes was like a horror movie.
I will ask about that.
I will also ask about the battens.
What I could like them to do if it makes sense is to drill through little holes in the battens so that any moisture/condensation could drip down the roof. When I saw these battens that appeared to be completely sealed rectangles I had a very bad feeling. Might also be an idea to have the battens on a slight angle so that the moisture could run down and then drip through.