thanks man!! I appreciate you really!
I completely understand!
we use 6 mil clear plastic. It has held up pretty well, we have replaced a good bit due to age and a few tree branches but that’s what patch tape is for but all in all it holds well.
It a single poly with a 1/4" per ft grade slope from ridge to exterior wall but with that little of a slope it might as well be considered flat roof.
Single poly doesn't do much for insulation. Add another layer of poly with a forced airgap between the two layers, and you're in business. You also want as high of a roof as possible, which is why most folks build angled roofs above the sidewalls.
When we first planned out our build we thought about the two layer forced airgap but the way we had to tack the plastic down made it impossible because its not one continuous piece. Have you done the double insulation? how does it handle punctures?
I haven't done one myself, but I know the insulation ratings on single poly are quite poor. With double poly, you can get the similar r-ratings as twin-walled polycarbonate.
greenhousegab.com
miss growing it so much better then indoor nice set up bud love it G
