"Barbed" is almost certainly a gross misspelling of burlap.
Burlap is a sturdy cloth made from jute yet breathes enought to allow air circulation.

http://www.ces.purdue.edu/extmedia/FNR/FNR-133.html
. Air drying sheds or covered air dry yards are becoming somewhat more common. Predriers, if properly run, will also help reduce checking and keep the lumber bright. Species prone to checking, such as oak, are sometimes wrapped in <<<burlap>>> to reduce air movement over the surface.