Here is our completed cold frame for the frost cloth during the winter. I will also use this for the shade cloth during the summer months.
I've only had to use this once for a frost and it worked great. It was very easy to drape the frost cloth over this structure.
Here you can see how I used rebar inside the 1/2" pvc to keep the pvc pipe from bending.
This image shows the use of pvc caps on the 1/2" pvc pipe frame. I drilled a hole just below the cap to run the wire through. If you do not use a cap, the frost and/or shade cloth will tear from the tops of the pvc pip; they are sharp.
