"I might upgrade to cuben."
I'm in the market for a stormworthy shelter I can use above the treeline as well and that will see some winter use. I've narrowed it down to the Solomid XL but was debating between cuben and silnylon until I read Lawson Kline's comments on page three of this thread:
I've decided to go with silnylon although I'm sure a sewn and bonded cuben mid would work find. Here are his comments.
"The reason you don't see more cuben mountaineering tents is because of the construction techniques that would have to be used.. The shelter would have to be both bonded and sewn as bonding alone doesn't work in cold weather. The adhesive looses all its strength and the shelter will just fall apart.
I had a problem with my drybags in cold weather. People were stuffing their down bags in them and then going out in cold weather mountaineering, snow shoeing, skiing, hunting, etc and the seams were failing. The down bag would literately push the seam apart... So I paid 3M to test the problem. Well they found that ALL roll adhesives loose about 50%- 90% of their bond strength under 0F. Put it this way. 9485PC which is the adhesive that Cubic Tech use to recommend before selling their own, and most likely the adhesive most companies are still using has a T-Peel bond strength of 90.4oz/in at room temp and 12.5oz/in at 0F..
So the problem can be fixed by sewing the seams after bonding, BUT then your sewing through a non-woven material which creates a whole set of new problems....."