most of the time it is caused by heat escaping from your attic. that heat melts the snow and ice and as it runs down the roof it refreezes when it reaches the bottom. some things you can do to prevent that from happening is to have insulation blown into your attic and/or have your roof vents looked at to see if they are working for you or against you. other times people use that roof heat cable and it does work well if it is done right.
Example sentence - The sun warmed the roof and the icicles fell off.
Icicles is solid water (H2O); formation of ice is a physical process.
Icicles can form on any side of a house roof where water drips and freezes, depending on the direction of sunlight, temperature fluctuations, and the amount of insulation present. Factors such as shade, roof pitch, and wind direction can also influence where icicles form.
physical
There are icicles on the window again.Judging by the damp carpet, the Sherlock theorised that the victim was stabbed with icicles before the evidence melted away.She watched the way that the moonlight shone off the icicles.
Icicles form when melting snow or ice refreezes as it drips from the edge of a roof. Heat escaping from the roof can contribute to the melting process, but other factors such as temperature, sunlight, and airflow also play a role in the formation of icicles.
The proper spelling is "icicles" (stalactites of ice as from a tree or roof edge).
The freezing weather made icicles on my house roof.
The formation of icicles at the edge of a roof is a physical change. It occurs when water freezes due to a drop in temperature, without any change in the chemical composition of the water molecules.
The formation you are describing is icicles. Icicles are created when snow on a roof melts due to warmer temperatures, then refreezes as it drips off the edge of the roof, creating long, pointed ice formations.
cracked or damaged shingles leaking/icicles
The formation you are referring to is called an icicle. It is formed when snow or ice melts and then refreezes as it drips down from a roof or other surface. Icicles can be dangerous if they are not removed promptly, as they can fall and cause injury.