![snow retention on metal roofs](https://repairsl.metaldetectorsforgold.net/wp-content/uploads/2013/09/cp144ft8lp-150x150.jpg)
Snow retention on the roof of calm in winter First snow , lying down evenly over the surface of the roof , over time, begins to melt slightly and forms a thin ice . It melts from the heat that radiates the surface of the roof and freezes under the influence of negative temperatures . […]