> Does the Sunbrella also insulate a bit better, being a thicker product?
> What about rain resistance?  Breathability?

It's not that Sunbrella is thicker than the cotton canvas, it's just less
pliable and therefore harder to fold.  It is less breathable than cotton
canvas. This may make it a bit of a better insulater in the winter, but I'm
guessing that it could also make the interior somewhat stifling on a hot
summer day as compared to the more breathable canvas. With regard to rain
resistance, the cotton canvas does tend to absorb some rain (get wet) but
even in heavy rain I have never seen it allow any rain to penetrate into the
camper.  The Sunbrella is less absorbant, so it might dry out a bit faster
after an extended period of rain, but in terms of preventing water from
actually getting inside the camper they're both good.

- Ron Salmon
  The Bus Depot, Inc.
  (215) 234-VWVW
  www.busdepot.com

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