I got stumped with the layering on the batten, but a salesrep over at GreenHouseMegaStore sent me to this page, and I understand how the batten works now. I'm building 3 greenhouses out of trampoline frames. I use 2.5 trampolines per greenhouse, with lumber horizontal supports. I wanted to secure the poly film to the horizontal supports but got really really stumped on how to utilize the batten.

Your pics and how-to text straightened it all out for me. Thank You !

Welcome to All Things Plants! I'm so glad we can help you! Your trampoline greenhouses sound interesting and ambitious. I hope you'll share your progress and photos as you build them. When you get a chance, click on the link and check out the Greenhouses forum http://garden.org/forums/view/... here on ATP. Members share their experiences, can ask questions, offer suggestions, and love to help anyone constructing a greenhouse. . .or three! I think you will love it. Everyone is so friendly.

Here's another article that shows a photo of the batten tape crossing the hoophouse we put up to keep our plants warm for the brief winter we have here. I just took it down last week and stored it along the side of the house.
http://garden.org/ideas/view/B...

Bubbles/Sandi