In winter, the snow on the roof helps keep the house warm. Why? From the point of view of heat transfer.

Under the condition of the same indoor and outdoor temperature, the snow on the roof is equivalent to adding a layer of thermal resistance, because the snow is hot, so the heat dissipation is reduced. Snow is sealed to keep the heat.

Snow can be regarded as a part of the roof structure. Because of the air gap in snow, similar to foam structure, air is a good heat insulation material. For example, the aerated concrete in the building is a good thermal insulation material, so the snow on the roof is conducive to keeping the house warm.

Treatment of roof snow:

1, use snow removal tools. You can clear the snow on the roof with a snow rake or something. Generally, it is not necessary to clear all the snow, but only some key places. Cleaning the snow can prevent the snow from collapsing the roof, but in the process of cleaning the snow, we should pay attention to protecting the roof, and more importantly, protect our own safety.

2. Use snow melting agent. In many places, salt or professional snow remover will be used to remove snow, but the snow removal effect is generally not obvious, and many snow removers are easy to corrode roof materials.