I've been building the Mini Cup in my head since last year ( lot's of room
in there ) . The sail in the plan calls for Visqueen polyethylene ,
houses being built around here have a stuff called Tyvek building wrap
covering all off the wood framing before the outside brick etc. is put up.
This is the same stuff used in Federal Express overnight envelopes, it's
easy to cut but hard to tear, I was wondering if anyone had experimented
with this stuff ?


Phil