Magnesium Chloride On Roof

It melts ice faster than sodium chloride does works at lower temperatures than sodium chloride and also melts larger volumes of ice.

Magnesium chloride on roof.

Is your roof asphalt shingles. Gel melt can be positioned directly on the roof or the ice dam to carve a deep channel into the ice buildup so that melt water has a channel to runoff into the gutter or downspout. The petco stuff is most likely urea kinda ok but the other mix will work better. Organic salts like magnesium chloride are slightly more effective than inorganic salts.

Rock salt is sodium chloride cheap and poor. Another draw of magnesium chloride is that it s reasonably safe for your pets and more environmentally friendly. Calcium chloride is the most aggressive ice melter working down to well below zero and magnesium chloride is very good. Many ice melt products contain a mix of other types of salt.

Bare ground gel melt magnesium chloride gel is designed for alleviating issues of ice dam blockages. Calcium chloride is the best salt to use on ice dams according to handyman glenn haege. If you use it make sure it s pure magnesium chloride. Also it s the least likely to cause all the damage listed above.

Most common high performance ice melters such as magnesium chloride or calcium chloride will certainly melt the ice but they may also cause staining of the shingles and could also cause corrosion of the gutters aluminum siding or fasteners.