In the winter, when there are massive precipitations in solid form, a consistent layer of snow can be deposited on the roof. Heat losses through the roof or frost/ thaw cycles lead to the melting of the snow layer, favoring its sliding towards the eaves. In many cases, gutters and downspouts get clogged and a part of the snow falls down on the sidewalks, but if the temperature drops again, the remaining melted snow on the roof and in the gutters will turn into ice. A few days with such phenomena are enough and you may be confronted with the appearance of ice dams on the roof. These are dangerous because it will take them a longer time to melt, and in the meantime, they will no longer allow the snow to slip down, and the resulting water will remain on the roof long enough to infiltrate.
To prevent these effects, there are specialized products and systems for defrosting. Such a system that makes snow and ice disappear from the roof is fully automated. It detects the need to melt the ice or snow depending on the weather conditions and stops or starts the heat as necessary. Roof defrosting systems are heating systems with electrical cables, which keep the roof, gutters and downspouts ice-free.
If you do not have such a system, you can still prevent the formation of ice dams by ensuring that your roof is properly ventilated and by cleaning the snow manually, before it melts and turns to ice. For more serious roofing repair and maintenance, contact Penney Construction for help.
First Seen over here: Ice Dams And Other Common Winter Roofing Problems
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