It can damage masonry.
Rock salt on rubber roof.
Melted water with rock salt mixed can drip off the roof edge and onto stone or brick masonry.
You ve seen what road salt does to the undercarriage of cars in the winter how it can rust and destroy a car.
As a result it can cause damage to vulnerable parts of your roof including nail heads and aluminum flashing.
Tummy aches or worse for any animal or person who likes to eat snow.
A do not put salt on your roof.
Why you shouldn t use rock salt on your roof in their determination to melt away ice dams growing on their roof s eave and thus potenti.
They work effectively in temperatures down to 25 f.
Sodium chloride or rock salt is highly corrosive.
Rusting nail heads can cause aesthetically unpleasant staining but more importantly they can result in loose roofing materials that can easily tear off during stormy weather.
It also does not work well below 20 degrees fahrenheit.
The tablets help prevent roof damage by melting through ice dams and allowing water to drain safely.
Could i put some road salt on the roof to keep the drains from freezing.
However rock salt is a form of sodium chloride which corrodes metal including the metal nails holding your shingles in place.
Salt particles can easily get in through the porous surfaces build up.
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.
Rusted roofing nails and flashing which may lead to rust streaks on your roof.
While safely on the ground toss a roofmelt tablet onto the roof.
I can t imagine that salt would hurt the rubber.
As far as being effective i would imagine with any bare spots and a little salt the black from the rubber would melt off pretty quickly.
Rock salt is corrosive in nature.
It should be no surprise then that it is the first thing many people think of to remove ice dams.
Rc2505 feb 4 2011.
Saltwater leaking into your home as a result of said leaks.
The roofmelt ice melt is designed to eliminate the need to climb onto roofs while melt snow.
It will damage the roofing siding gutters and downspouts and the poisonous runoff will kill foundation plants.