Jan Corriveau wrote:Hello Jared,
I was wondering the same question... I've also seen people doing it like in this youtube video:
It's basically a velcro plate embedded in earth bags a few layers below with 2 vertical pieces of plywood (Those are strengthened by the next 2 layers of earthbags pushing against it's sides). Once the rafters are installed, you continue the last 2 layers of earthbags to tighten everything together.
See this video and forward at 8:06
I hope this helps