Wood Stove Heat Shield For Wall - Metal Barn roof tin woodstove heat shield | rustic ... - On the walls behind / beside the stove itself i used some leftover durock board (1/4) but again just because i had it also have seen people take an old piece of 1/2 copper pipe and cut a few pieces @ 1 long and just use these as spacers (screw right thru them) for heat shield on their woodstoves.