It might make it easier to attach and adjust the plastic is my thought, not that it is needed for strength.
I see hoop house designs that allow rolling up the plastic from the bottom to get ventilation on warmer days. I think this is to prevent over heating the plants. Using duct tape is going to make that adjusting difficult compared to re-usable clips on PVC.
With a few PVC pipe purlins run horizontally across the cattle panels, you could unclip the lower edge of the plastic, fold it up over the next highest purlin and clip it in place for example.
You might be able to do the same thing with heavy-duty clothespins or spring clamps that fit the cattle panel rods. To get the best life out of the plastic, you need to stop it from galloping in the wind.
My friend, you just said he needs pvc with the cattle panels. Was that your intention?
i dont reckon you have any snow load to deal with there.
I see what you are saying now.
Hoop house designs are nice. I just like the added strength of the cattle panel. Ventilation is extremely important where we are in South Central TEXAS. This is why we have the automatic window opener on one end.
how does the cattle panel add strength?
If you was using a pvc hoop we would be talkin about feet between the pvc hoops and the wind, snow and rain would make the plastic sink in between the hoops. Then the weight would cause the hoops to start moving out of place along with the plastic sagging. I suppose if you placed multiple pvc perlins it would make a huge difference, but we are then talkin bout feet between perlins not inches.
Now if we are talkin about the cattle panels we are talkin inches between the hoops as the biggest squares are 6"x6" so you only have 6" between your hoops instead of 2' to 6' like the pvc hoop. Again the squares are 6"x6" so now we have 6" between the perlins.
Now if we was considering a snow load of some sort what would you rather have pvc hoops 4' apart with perlins 4' apart for a 4'x4' square where the snow could accumulate and cause the plastic to sag or would you rather have the 6"x6" squares of the cattle panels where the snow just slides off?
i would like to have a professionally engineered structure since i am growing high value crops in it. i have 4 high tunnels and none of them have any cattle panels. none of them are pvc. they are all made from steel tubing bent to the correct shape. snow doesn't slide off unless it is warm enough. otherwise i go outside and sweep it off with a broom. the structures are 26'x48', 12'x100', 10'x48', and 14' x 32'. they are easily vented by rolling up the sides. how can you state that snow just slides off when you have no personal experience with that?
Looking at constructing a cattle panel green house and very interesting in snow load concerns.
When the snow does slide off, it would build up on the sides of the green house.
Especially with the amount of snow we have received here in central Maine this winter season.
Should there be any attempt to keep the snow removed from the sides of the green house through out the winter ?