Hi there is a new business here in Townsville that is using a roof sealer for caravans and motor homes I'm going to find out more about it tomorrow I'll let you know what I find out.
I used Marine and Auto Sikaflex for the leaky joints. It stays pliable, doesn't dry, shrink or crack, and is holding very well. The bonus is I have a dry interior instead of an internal water feature like I had in Cairns. Some of those roof paints shrink and will eventually be useless, so do you homework. Are you looking to fix leaks or to insulate, seal and protect?
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20ft Roma caravan - Mercedes Benz Sprinter - SA-based at the moment. Transport has no borders.
Management makes the decisions, but is not affected by the decisions it makes.
If my van was new, I certainly wouldn't be putting any sealant on the roof before there is a problem ,as if there is a leak it would be going straight back under warranty. Our van is now 16 years old and has never leaked, yet and if it does start to leak, will be resealing the area that has started leaking, or get the entire roof resealed by a competent repairer.
Hi Robkin A loooong time ago when I was in the industry a mob called Valliant Paints brought out a product to do just what you want. Finding a roof leak is near impossible IMHO, so we just used this product to paint all the alum joins and along the edge of the roof. It was all done up top and could not be seen from the ground, so no looks problems. The stuff was about the consistency of thick cream, same colour, it skinned very quickly but stayed nice and soft and sticky under skin. Worked a treat and did not cost the earth, around $40 per 1lt back then.
http://www.caravanandrvworks.com.au/shop/index/product-detail/product_id/2587
-- Edited by Dreamcaster51 on Thursday 16th of August 2012 06:09:00 PM
I agree with you on this,I might attempt to try and reseal a leaking roof, but would be more likely to engage a competant tradesman, if you don't get the this job done properly, you can end up with a van that is a write off, because of unseen damage to the internal structure.But the main question asked in this post, is, would it be a good idea to to apply some type of sealer, to a new van roof.