Rock Salt On Metal Roof

Rock salt is not effective on surfaces below 0 fahrenheit.

Rock salt on metal roof.

Three to four times more expensive than rock salt according to this site. Use ice melt only when there s no alternative. If you expose the inside of gutters to salt throughout the winter the salt will eat through the finish on the inside and begin corroding the metal. While safely on the ground toss a roofmelt tablet onto the roof.

Again for the most part you don t want to throw any type of ice melt product on your roof. No it s dangerous for landscaping. The tablets are specially formulated with calcium chloride so they won t harm your exterior like products such as rock salt which could rust your gutters and damage shingles. Melted water with rock salt mixed can drip off the roof edge and onto stone or brick masonry.

They work effectively in temperatures down to 25 f. Rock salt is corrosive in nature. As a result it can cause damage to vulnerable parts of your roof including nail heads and aluminum flashing. 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.

Rock salt can also leave permanent stains on your roof and walls. The roofmelt ice melt is designed to eliminate the need to climb onto roofs while melt snow. Rock salt is corrosive to roads concrete and metal your car. Unless you rinse gutters and apply a new protective coating after each freeze thaw cycle salting will ultimately damage your gutters.

An excessive build up of some types of ice melt may become toxic to the environment though newer safer brands are now on the market. Use roof melt tablets to reduce snow and ice buildup that occurs on your roof typically on the eaves and in gutters. Salt is damaging to plants and very few varieties are tolerant enough to withstand the dangerous levels that can occur when you use rock salt on your roof. The tablets help prevent roof damage by melting through ice dams and allowing water to drain safely.

For these reasons rock salt is not a good choice when it comes to getting rid of ice dams. It can damage masonry. Ice melt works in below zero temperatures. It also does not work well below 20 degrees fahrenheit.