I built a shed about 10 or 11 years ago with a sloped roof made of the
corrugated clear plastic from Wickes. A few days ago, while putting a
ladder away in the shed, I banged the roof & made an irregular hole in
it. Is it worthwhile to replace the whole roof (6 or 7 panels, I
think) on the grounds that the plastic has degraded in the sun over
time, or should I just replace the one with the hole in it & see how
You might get a sense for how "brittle" the plastic has become by
bending bits around the hole. IME it lasts reasonably well but is not
particularly strong in impact: I've just replaced a similar roof in a
lean-to under some trees; in the winter storms bits of branch an inch
diameter and a couple of feet long are heavy enough to crack or puncture
it. What I went for was this sort of stuff
(or just search eBay for corrugated fibreglass sheet)
which is a bit more expensive, but is much tougher.
In your case, though, I would think about just replacing the panel. Or
even just gluing a bit of sheet underneath the damage. Use clear
silicone from a cartridge gun, make sure there is a sealing bead all
around the hole.
I think you need to test it, but that stuff is pretty brittle to start with,
so it won't have improved. I had some on a garage and it went milky white
before it started to splinter.
How have you secured it? I found that you need a big area to hold it down
or winds tend to rip them right off if there are too small and not enough
fixing points. Surely by now somebody has made a more stable plastic?
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On Monday, 10 September 2018 11:45:05 UTC+1, Adam Funk wrote:
It's not supposed to be affected by UV but I think it is.
Some makes has to be put on the "right way up" as only one side is UV proof.
I would repair it with weatherproof tape for now & see what happens.
You can get clear outdoor tape (intended for tunnel greenhouses) or use Flashband.
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