I've kept my mouth shut on this as I'd rather not say anything against something just because it's not my thing, but your list of Pros is actually a number of Cons, in my opinion only.
also, If you velcro'ed it from the top inside to the outer bottom its almost like having a Tarp over it...You will never get any water in the cracks/gaps/on the top of the lower siding/panel...
Have you ever tried to manage what will be around 24 feet of canvas that needs to be held up above your head, hit fairly exact spots such as corners and a doorway, without gaps or wrinkles while it's raining and the wind is blowing it in? Ok, I threw the weather bit on to be dramatic, but I seriously see a "wish I hadn't done this" after the 10th time of having to set this up. You are adding quite a bit of steps and ones that have to be fairly particular to the set-up process. It takes 8 minutes for you to set up? Wow. Factor in another 15 just for the canvas, at least.
Alot of people run into problems because Of water being blown in the nooks and crannies of the lower top half...
Who? Can you provide an example? The occasional, and I mean rare, times water gets up under, it dries out. I always open back up at home after having been out in the rain at all. I've had one little bout of mildew (not because water got up under the roof, but due to respiration condensation on an inside corner of a bunk-end) because I didn't open it back up. My fault. I've not heard of anyone having issues as you describe. It has been seams leaking, or end caps on the roof leaking, or open body panel issues.
easier on the canvas
How? When cranking up the roof, there is little stress on the canvas unless you've got something hung up. Once deployed, if the canvas is even tight, you will have some stress on the attachment points. It depends on how the manufacturer attached it. I've seen it with staples, and have had at least one that used a channel.
no force on canvas when Packing up
What force do you mean? The roof still has to come down and rest on the top of the walls, but also rests on the canvas and bed, to some degree, regardless of how you've attached it.
no need to worry about Pushing canvas in multiple times when packing up
Oh, I promise you that I would still walk around it twice (once when it was about 8" from being down, again when it's about 1" from being down) as I've seen what happens when one little missed piece of canvas sits between the roof and top of the wall. No thanks.
If you need to excape it would be easy to
Yes, this a plus. Newer models have fire escapes designed, but no necessarily using velcro. Mine uses zippers. So this would be a good thing. Ripping down velcro vs. fumbling with a zipper in a high-adrenaline situation makes sense.
Less wear and tear on the lifts/pulleys sense there will be alot less weight when putting up
To a degree, this makes sense, but not to a practical matter. Keep your lifts and pulleys lubricated, regardless.
Easy takedown to clean or repair
I would not want to clean my canvas (which isn't canvas for those who care) when it wasn't up, taunt and sealing off the interior. I use a long-handled brush with a hose attached. I dip in the bucket of cleaner, brush on, twist the handle of the brush and water shoots out of it to rinse off, while standing off to the side of it. I sure wouldn't want to be wrangling wet canvas around to make sure I get all of the parts cleaned. You still have to set it up back up to let it dry or run the risk of mildew. I have done very few repairs so far (knock on wood) but if I needed to, I would just lower the roof to give me slack, depending on what the repair called for.
The great thing is: this is still a free country and you are free to do whatever you wish with your pup, within reason (don't open an establishment of ill-repute inside it, ok?). So, go for it. No one will satisfy your desire unless you do it. Take pictures. Let us know how it works. We could all learn a little something from the process.
P.S. When I tried using velcro to do this very thing for my Pop-up Gizmos (fancy tarps just to cover the bunk-ends), that turned out to be a ton of work. I used Industrial Velcro rolls. First, even the most aggressive adhesive version of Velcro gave out as far as sticking to the plywood that is the framework of my roof. I would pull out the failed strip and see plywood splinters still attached to the adhesive side of the strip. I ended up going with contact cement, which will move more into the pores of the wood, to bond the velcro to the roof. It worked pretty well on the pop-p gizmos, but that's because they are a relatively smooth surface. Canvas won't be.
The force placed on the Velcro of just pulling the pop-up gizmos is what pulled it away from the wood side of the roof. pop-up gizmos weigh about, when wet, a pound. Very little pressure applied. Imagine the weight and stress placed on the top line of the bunk-end canvas. I think the manufacturers did pretty well.
* This post was
edited 05/15/12 01:51pm by bondebond *
Rain while it is up would not be my worry, my pup doesn't leak while up. What happens when you need to pack up or set up while it is raining. You could end up with a very wet interior even with a light rain with a slight wind. Then you would also have the problem of storing a wet canvas.
2001 Town & Country
2005 Chevy Avalanche
2004-Rockwood 2280 A few pictures