trampoline lifespan?

How long can I expect a mesh trampoline to last if the cat is stored uncovered in the sun for the summer (about 3 months a year)?

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Jason Kasper
2000 Mystère 5.0XL
Lake St Francis (St Lawrence River)
Lancaster, Ontario, Canada
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Depends on regular stitching or teflon stitching, but looks sunburnt after 5 years; will last 10 years. But why have a sunburnt tramp--keep it covered!
we have cats here in africa (florida) that stay uncoverd for 4-6 years and still are ok
but the less UV the better for shelf life