Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Saves your roof from ice damns

This product works extremely well to remove snow from the roof especially the snow sitting over the eave area of the roof. This area of the roof will develop ice damns which can destroy shingles and send ice and water back up the slope of your roof to then melt and damage the roof decking and then leak into the house. Be careful to gently drop the shovel on the roof to avoid damaging shingles. The shovel head is large enough to cover sufficient area without being so big the user cannot pull the snow off the roof. An excellent tool to extend roof life.