Are timber frames used in caravan manufacturing old fashioned and outdated compared to metal frames?
This question often arises, due in no small part to misinformation by manufacturers pushing a particular barrow.
The reality is that the only discussion is the difference created by the quality and reputation of the manufacturer. A well-constructed timber-framed van and a well-constructed aluminium-framed van will be untroubled by the rigours of Australia's rugged terrain - on or off the road. Equally, poor quality construction in either material can lead to problems.
Phoenix chooses quality timber manufacturing techniques and the longevity of our caravans is testimony to its inherent strength.
A popular claim is that aircraft manufacturers do not build from timber and that aluminium must, therefore, be superior. You need look no further than traditional boat-building where timber framed hulls have absorbed the relentless pounding of ocean voyages for decades without ill effects. A counter argument could easily be put that no aluminium aircraft could withstand the forces of the pounding seas, let alone road corrugations, without suffering metal fatigue.
To repeat our view - quality caravan construction in either material will serve you we but the emphasis must be on the quality of the van and the reputation of the manufacturer,
Even though I am trying to have this thread run its course as a legitimate, though adhoc, survey I feel I need to comment upon your statement regarding timber framed caravans.
I acknowledge that there is a place in the market for both types of vans but some clarification is needed. Many might have the impression that timber framed vans are old fashioned and not relevant in this day and age. Nothing could be further from the truth. PROVIDING the manufacturer is prepared to properly manufacture the frame, use acceptable materials, adhesives and fixings and, most importantly, properly seal the unit, a timber frame can have many advantages over an aluminium frame for the following reasons.
Timber will flex with the dynamic motion of the van. Aluminium won't. Timber will also lend itself to far easier repair after an impact. Timer framing is far more suitable for serious off road caravans because of its ability to absorb road vibrations and torsional distortion.
Many Aluminium frames suffer seriously from stress fracturing after a given period of operation, particularly welded alloy frames and particularly when used in a heavy duty environment. It is rare for us to strip a welded alloy frame van and not see significant cracks around many of the welds.
The skin can be glued to the frame of a timber framed van with some degree of certainty that it will remain stuck. Alloy frames have to be riveted in place, they move at the joints, and it is far more difficult, without the correct preparation, to have the skin remain adhered correctly.
The main problems with timber framed vans become evident when the van is incorrectly sealed and the unit leaks. Rot proofing is an option for all manufacturers of timber framed caravans should they be prepared to go to the trouble to use it. It certainly would be a useful marketing tool.
Regards,
BarryD