What is hybrid spray foam?
First I am hearing of it. Got a quote for a heavier duty foam that doesn't fit the specs of either open cell nor closed cell. Specifically, it becomes a full moisture barrier at 6 inches thick. It's R value for 6 inches is R-27 which is a bit more than standard open cell foam. Is this really a thing? On the quote line item it is listed as "AG800MD", but not clear. I am guessing from google that it is https://superarbor.io/products/huntsman-building-solutions-agribalance%C2%AE-ag-800du-open-cell-spray-foam-insulation-480-lb-drum
I am wanting to use it on the roof of a climate zone 5, so it absolutely must have the moisture barrier that closed cell does.