The PVC hoops let off a gas which can deteriorate the plastic covering on the hoop house. The solution is to seal the PVC with a layer of paint. We noticed when the plastic would rip it would break apart directly over a PVC support. I remember reading about this but I did not think it would affect the plastic so quickly. We will compare the longevity of the same plastic next spring.
I am interested in this problem with pvc piping.
ReplyDeleteCan you tell me what gas is given off?
In our garden we have been using rural grade irrigation poly pipe to make the hoops and we intend to build a tunnel house similar to yours, or at least as high, even though it won't be as long.
Have you considered using this type of pipe or is pvc piping more economical?
I would be very interested to get your thoughts.
Thanks
John Walters
john@veggiepatch.com.au