This is an absolutely fantastic product made by Candan Industries in Carrara, Queensland. We were proudly showing off our A'liner to our campsite neighbours at Easter at Mt Tamborine, and you guessed it the thing wouldn't come down even with one of us on each side! Jeff has looked at this BUT it remains a problem - we seem to have the worst roof in Australia! After our neighbours (Jayco owners!!) stopped laughing, the husband popped inside and came out with a can of Inox. We squirted this on the sides and inside the top. It worked brilliantly and it contains no silicone. Very dear - from $10.99 to $14.99. Ours came from Mitre 10 - also available from True Value Hardware. 

Bob & Chrissy Eustace 

PS. Prior to this episode we religiously applied silicone spray as per the A'van manual with little improvement. Inox really works!