Jeff,

I have weathered several nastly storms in my westy.  If the canvas is in
good condition it will not leak.   Just like stereched canvas on a tent 
the canvas will become saturated with water, but will not leak. If
objects are lying against the canvas, which is wet, they will adsorb the
moisture.  If you discover a leak it will likely be a seam or a open
area.  Duck tape will work for  quick fix, but remove it asap for it
leaves nasty adhesive behind.   No longer than a day or so.   
  I have often been surprised by how quickly the top dries.  You can
spent a hour to two drying asap possible after the rain ended or spent
years smelling mold and mildew.   Just treat it like a good canvas tent.
Always put it away clean and dry.

Call if you have more questions
Kenneth Winter
1-800-264-6757

Oxroad@aol.com wrote:
> 
> Hello all--
> 
> I'm new to Westfalia Camping. Can I leave the pop-top open in the rain? Is it
> water-proof? If I do leave it open will it need a long time to dry before I
> can close it? I'm particularly frightend of mold.
> 
> I'm off on a camping excursion soon and would appreciate any advice on this
> topic from those of you seasoned campers.
> 
> Thanks
> Jeff
> 83.5 Westy