The worst part is probably the cost I have in that. Granted it was bought over time on the kennels, but it adds up. 10x50 Roof was $486 for the cattle panels, tarps, and 120 lb test zip ties. Must use the heavy duty zip ties or they just snap (experience speaking here). I had to order them as I couldn't find a store that actually carries them. We got some of it on discount so that helped. The 6 greenhouse tarps ran $168. Those were well worth it as they don't block light. I'll remove them in warm weather. Took me months to get them all.
The plus side is that its not near the price of wood and can be moved if needed. I have had to do that.