Why Do Downspouts Fill With Ice?

Iced up downspouts are often cause for concern. You may wonder if the ice is blocking the downspouts due to a blockage of some sort. While this can be a factor in some cases it’s more than likely just frozen water. The snow on the roof melts off the roof due to heat loss through the attic. The melted snow then runs down into the downspout which is not heated by the roof or in direct sunlight. The water instantly turns back to ice creating an ice filled downspout. Continue reading “Why Do Downspouts Fill With Ice?”