Looking at the thickness of the fabric and the hole sizes I doubt that much water will pass through unless it is hitting at an angle pretty hard. Probably will still contain scent fairly well also.
Another little test if you're up for it. Plug a fan in outside the blind blowing in. get inside and check to see how much breeze is actually seeping through.I hit it with the garden hose test this morning. Driven rain will get through the "view" material and inside the blind. Angle is key to how much rain will make it through. Heavy rain from top down or a minimal angle will produce minimal penetration.
The air flow in and out impacting scent and how these blinds handle rain and snow will be known over the next 10 months. I'm still very excited with their potential.
The top and the sides that are not "view through material" are made from the traditional Double Bull material, which is very durable. Also the first 24" off the ground are made with the same Double Bull material.What is the roof material made of? Thinking about a regular falling rain, sleet, etc? Keeping equipment, scopes, etc dry.