On many trailers wood is the preferred material for rafters. Many of the lower priced lines use stamped steel, aluminum or even galvanized steel in the rafters. There's little "rebound" to those products and they transmit all the sound from the roof to the interior. Wood, on the other hand, tends to rebound without damage during travel, doesn't transmit as much sound, so things like rain, heavy wind and more importantly, air conditioner vibration, ten to be a bit more quiet in trailers with wood rafters.
From a construction vantage, it really doesn't much matter as long as the trailer holds together, either material, metal or wood, will do that (if constructed properly). The advantages of wood pay off for the consumer in less noise and longer structural integrity, as long as there's no leaks.... Wet wood, well, that's not going to last as long as wet, galvanized stamped steel rafters. So, yes, there's a "trade off" but if I were buying, I'd prefer wood if given the choice.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
|