There is a very good chance that the rock salt will cause premature corrosion of the metal panels.
Throwing rock salt on roof.
No steel comapany that i know of would honor a perforation warranty in this situation.
Putting rock salt and ice melt directly on your roof will damage shingles but by filling the socks with salt and ice melt tying them off and sticking a few in your gutters it will help clear them out.
Three to four times more expensive than rock salt according to this site.
It should be no surprise then that it is the first thing many people think of to remove ice dams.
A do not put salt on your roof.
While it s rarer ice damming can also occur on roofs without gutters.
However rock salt is a form of sodium chloride which corrodes metal including the metal nails holding your shingles in place.
It will damage the roofing siding gutters and downspouts and the poisonous runoff will kill foundation plants.
Use ice melt only when there s no alternative.
Sodium chloride or rock salt is highly corrosive.
It also does not work well below 20 degrees fahrenheit.
In respect to this can you use rock salt on a roof.