aluminum isnt magnetic, it could be wire mesh behind the drywall depending on how old the house is. they do use steel plates to protect wires but they are rarley used. they used to also use steel strips between seams in older drywall. or a duct...
<a href=showthread.php?s=&postid=7197951#post7197951 target=_blank>Originally posted</a> by Gary Majchrzak I think I have the answer: the ductwork is galvanized aluminum.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.