However rock salt is a form of sodium chloride which corrodes metal including the metal nails holding your shingles in place.
Rock salt on roof shingles.
Proven safer when applied to quality concrete surfaces melt exhibits the following properties.
When the snow melts the dam can route water under roof shingles and cause roof damage.
Packaged in a resealable bag for easy storage melt can be conveniently dispensed directly out of the bag or into a hand held or wheeled salt spreader.
The key to using ice melt to prevent ice dam roof leaks and plugged.
Sodium chloride is not due to it s corrosiveness tags.
In their determination to melt away ice dams growing on their roof s eave and thus potentially prevent leakage and damage to their home s interior many reach for.
Melts down to 25 f.
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Rock salt can also leave permanent stains on your roof and walls.
Rock salt is common for de icing driveways and paths.
I have done and continue to use rock salt to get rid of ice dams.
Ice dam calcium chloride.
Haven t noticed any issues in the 15 or so years i have been at this home.
Is calcium chloride safe to use on roofs.
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.
Rock salt s ability to damage driveways and other outdoor pavements is relatively well known but there is another place where rock salt can do damage to your home on the roof top.
It should be no surprise then that it is the first thing many people think of to remove ice dams.