Originally Posted by willk
A decent cover made out of truck "curtainside" will last a decade or more - particularly if it is fitted and doesn't flex in the wind. From what I've read here over the years, the Ducksback type solutions are good for maybe 2 summers - maybe good for a holiday cover while on tour or for use under a roof to keep the boat clean.
Went with your suggestion Willk and purchased a 6m x 3m PVC tarpaulin from Allplas Ltd for £130. They also sell them via ebay. It looks to be the same material used to make PVC RIB tubes so it's very durable, on the downside quite heavy.
I had and idea to improve the 40mm PVC frame I made and that was by sliding some 32mm pipe into the straight joins, the main one being over the console. The frame works really well even with the heavier material and it already stood up to temperatures of full sun. The 32mm is a perfect sliding fit and gives the joins more rigidity.
I used 20 x 1m bungee cords (10 pack costs £10 from Amazon) to hold the cover down, fitted in seconds and an improvement in the straps of the old cover which always needed adjustment.
I'm considering cutting the corners off instead of folding but I don't know if I'll bother. I have brass eyelets and would use Polymarine PVC glue (at the factory they welded it using hot air). Alternatively I'm sure if I trimmed it they would weld a hem back on for a modest fee and the cost of the postage. Here's what it looks like. Not the prettiest but I have every confidence it's going to last years.