-=> Quoting Floyd Williams to Tim Hutzler <=-
TH> Right now I am using 3-mil plastic sheeting, it degrades by
  > summers-end, but it's cheap. Someday, I'll get tired and put on
  > some glass.
FW> I'm having trouble finding a suitable covering? Do you think
  > corrugated plastic roofing would serve this purpose?
FW> Thanks,
FW> Floyd . . .
I think that would work fine. It's not as effient as glass, but it
would be cheaper. Make sure you seal the gaps off, so you don't vent
away your heat.
Glass works best (at least two panes), but buying them new and cut to
order is costly, I know. I haven't looked into window repair and
retrofitting outfits. There may be some possibilities there.
Good luck.
 
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