Depending on the conditions snow can collect on top of the hoophouse. When it freeze/thaws it sticks so much better and doesn't slide down as easily on it's own. I can knock it off using the back of a rake carefully so that I don't pierce the plastic. I wanted to get it knocked off before the next freeze/thaw and before more snow comes and accumulates.
This is a gothic arch greenhouse rather than the standard round arch and apparently snow will slide off this greenhouse easier, but snow collecting is still an issue.
Does anyone know a better way to deal with this than bumping it off from the inside with a rake?
Btw if you do this on your greenhouse be careful to look down or close your eyes as condensation frozen as ice will come raining down in the form of shards.