Wednesday, Apr 18, 2012 at 12:04
Allan - I'm not sure about the design of the sliding windows you're currently looking at - but every sliding window I've had anything to do with, ends up becoming difficult to slide, either leaks, or becomes loose in the slides. They generally also collect dust, dirt and water, when the drainage holes block up, as they invariably do.
My experience has ranged from sliding windows on Landrovers, to sliding windows on about 20 caravans, as
well as a couple of canopies, I've owned as a contractor. Gas-strutted lift up windows that have good sealing design (important) are the best thing around, AFAIC.
There are some problems with lift up windows, as listed below - but they are quite manageable;
1. They suffer from opening restrictions in confined areas (rare, but it does happen, as in sheds or garages).
2. They do have the potential of being damaged by something passing close to it (rare - but I've seen it happen). Then there's the situation related to "mind being in neutral", and shifting the vehicle with a lift up window open, and hitting a fixed object. You never move a vehicle with lift up windows/doors open.
3. You can sometimes bang your head on them when they're open, if you're tall. Make sure the ones you're looking at, open to a good height.
You can generally get around the venting problem by installing angled or stepped vents on the leading face of the canopy.
These are vents where opening doesn't lead directly to the internal area of the canopy.
The front face of the vent is covered, and the airflow opening is behind the front face, either angled or at the side. This design ensures flying mud, water, insects, stones, etc, can't go straight into the canopy - but airflow can enter the canopy once you get above about 30kmh, to pressurise it.
If you're doing a lot of slow dusty work, you can install a small 12V fan in a canopy vent, wired into the ignition, to pressurise it.
I don't see why one would want to drive along with a vent window partially open, unless you're on a sealed road.
On dirt roads, any partly open window will suck in dust, unless the canopy or cabin is pressurised.
Cheers - Ron.
AnswerID:
483438