Here's a question for someone of the engineering mindset type of folks, that have me generating this.
Over this last winter we had some repairs done to the 1972 31 foot International. We had three front panels replaced, 22,10 and 12 (top center, curbside upper, curbside with spot light) I may not have stated the numbers correctly and the three Vista windows. The work was done by a dealer and done nicely.
For the last three months we have had the A/S down on the North Carolina Coast where the temps have been in the high 90's with heat indices up to 115 degrees at time. We use the AS on the weekends, so it sits under a few trees attempting to stay cool until we get there and turn on the AC and normally get it to about 78 degrees.
This last week after driving through massive downpours of over 2 inches of rain and hour we relocated the AS to the mountains of NC at about 4000 feet. We go from sea level to 4000 feet ( Blue Ridge) and love the temps! Now here's the scenario. As we drove across the state in the down pours, Wednesday, there were no leaks at all. Last Thursday night, we set the Airstream up, we are sitting inside and it starts to pour. I look up at the area identified above as having new repairs done last winter and the water starts running down (like a spigot) the inside wall and the upper wall to include the windows. We are out of the 115 degree heat indices, the temp is at 65 we are now wearing fleece and sweaters and we are NOT alarmed by this, at this point. Annoyed, but not alarmed.
We use lots of the beach towels that we no longer need, to keep the water from running into the seams of the side of the inside and down to the wood floor. After an hour of rain, heavy rain, the water stops coming in and the down pour continued all night long. So much rain we had a flash flood warnings throughout the next day.
My son, who is over at this College town going to school, says you know, it could be that the aluminum contracted in the cold after it had expanded in the hot temperatures. Or it could be visa versa base on all you smart folks out there. He had me stumped on this one, but a good solid answer to some degree.
Anyways, I'll throw it out there as there could be some discussion point already that addresses this, but if there isn't it would be interesting to see if this is myth or fact. "Myth busters" which he used to watch growing up.
So, within a four hour window, could the drastic temperature change 30-50 degrees "less" and altitude (4000 feet) "increase" actually do this to replaced aluminum panels based on how they were sealed?
I was very reluctant to do these repairs, as you normally don't want to mess with 40 year old stuff that works, but the sight of the dented panels needed to be fixed and the peeled Mylar had to go. We use this thing all the time now.
BTW, it rained most of the weekend and not a drip! Amazing. FYI, I do have a few tubes of Parabond, so i am prepared.
Look forward to the discussion.
Have a great summer of Airstreaming where ever you all are.