Sir Michael said:
One goes on to say that the cheaper the material a great coat is made of the better it is since it is easier to ring water out of it after a rain than one made of expensive material.
Go Figure. :hatsoff:
Which one? You gave a good reference for a bedroll and left us hanging on the greatcoat! Is it the same source?
If you dig into the processing of wool you will find that there is a point of diminishing returns in the density of weaving. Wool demands some amount of loft, just like down, so that the fibers can trap air and do their insulating function. Woven tightly, as they are in the best weaves, they loose a bit of warmth. Fulling, to tighten the weave of finished fabirc, was also an expensive part of the process. they were trading durability for warmth.
The more expensive goods also had more of the natural lanolin leached from the fibers during processing. The cheap goods had more oil in the fibers and extra lanolin was sometimes added to wool that was exptected to be exposed to wet conditions. The garmet was not waterproofed, each individual fiber was waterproofed. They did not expect the wool to simply soak up water and retain part of its insulative strength, like we do, they expected the wool to actually shed water. Washington stated this in one of his orders for a greatcoat, with a hood, able to shed a good shower of rain.
Extra oil in the fabric was offered as a bonus by outfitters right up until the 1930s. Kephart talks about camp clothing with added lanolin in the late 1920s.
The wool we have access too today is a sad excuse for what they used for 5,000 years before acrillics and gortex.
Back on track now:
An oilcloth bedroll is a bad idea. You will wake with your blankets soaked with presperation and condensation from your breath. I have actually seen ice freeze on the INSIDE of a waterproofed bedrool cover.
I prefer to use the oilcloth as a tarp shelter. That makes it a bit more versitle as a shelter and cover for equipment. You can also make it from lighter weight fabric since bedrolls generally take a beating on the trail.
Do not go to a lose weave canvas though, go to a tighter weave light cotton or balloon silk that is waterproofed. Several of the suppliers offer an "oil cloth" made from ripstop nylon that they treat to look like canvas. I do not know if this is what Crazy Crow is offering.