How to patch a hole in a polycarbonate greenhouse

Polycarbonate, as the material for the greenhouse, is undoubtedly the best option. Lightweight, well kept warm and relatively inexpensive. In any case, cheaper glass. But polycarbonate has one significant and fatty minus: it’s too fragile. It can be easily damaged by wiping a shovel or hoe in a greenhouse. Or it may damage the outside, as in my case; a dry branch fell from a tree and pierced polycarbonate. I filled this hole quite easily, quickly and not expensive. Since I have already successfully completed the real hole before I decided to share this method, I will give an example on a drawn marker.

I’ll need it

  • A piece of polycarbonate for the patch.
  • Silicone sanitary sealant (preferably transparent!)
  • Screws on wood (4 pcs.)
  • Phillips screwdriver.
  • Stationery knife.
  • Alcohol or thinner.
How to patch a hole in a polycarbonate greenhouse

We fill a hole in the greenhouse

So,we take a cooked piece of polypropylene and cut with a stationery knife a square patch with a margin of about a centimeter three more from the edges of the hole.
How to patch a hole in a polycarbonate greenhouse
Next, clean both glued surfaces with alcohol or a solvent. Apply plumbing sealant continuously around the perimeter of the hole.
How to patch a hole in a polycarbonate greenhouse
Apply the patch to the hole in accordance with the stripes in the polycarbonate and the greenhouse wall and simply fasten it with screws to the greenhouse wall!
How to patch a hole in a polycarbonate greenhouse
How to patch a hole in a polycarbonate greenhouse
The length of the screws does not really matter, as we will remove them later. Now we wait for the time indicated on the label of the sanitary sealant, for complete hardening (in our case, gluing). After the sealant tightly sticks a patch to the greenhouse wall, apply a sealant on the joint between the patch and the greenhouse around the entire perimeter of the patch, unscrew the screws and, again,sealant seal up the holes from the screws.
How to patch a hole in a polycarbonate greenhouse
How to patch a hole in a polycarbonate greenhouse
Now, no rain will penetrate into the greenhouse through this structure, and the precious heat will not go away in the fall or in early spring. If the holes are small, up to five millimeters, you can simply cover them with the same sealant. And it is also possible to fluff the joints between the sheets of polypropylene, in any case it will not be worse from this. Why did I decide to use exactly the sanitary sealant, and not any glue? Because the sanitary sealant is made and intended for use in aggressive environments, such as sewage. This means that in simple, natural conditions, he will not only perfectly cope with loads, but will also serve much longer.