You might ask the manufacturer what percentage of light they transmit. That's the only issue I see. fwiw, 6-mil greenhouse poly lets 60% through. I have a double layer, so I get about 35% of the available light coming through, and that is more than enough for me.

Thanks Cole

I had a single layer of 6 on my lean to and it was for sure enough. In their video these appear to be more "clear" than regular poly so I may even be too much.

Mike

Cole,

Not sure what poly you are using, but most 6 mil polys allow up to 90-92% light through. Are you using a white over wintering poly?

Jay

No, I'm just really bad at math. You're right. My double poly layer lets through 85%, not 35%. Thanks for the correction, my mistake.