I've searched, and this comes up from time to time in the forums: Tyvek house wrap for a lightweight tent footprint or groundsheet for fly camping. Not the easiest stuff to find if you just want a couple of square meters. Stupid question perhaps, but does it need to be Tyvek branded stuff? I'd guess some of the NZ brands of building wrap will be similar bonded PE material. Has anyone had success using non-Tyvek branded stuff?
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