Falling off the roof of snow and ice mass is high risk to human life. In the Finnish collection of construction orders and instructions stating that the entrance to the building and all its approaches, as well as playgrounds must be protected from falling from the roof of snow and ice. This regulation also applies to all paths and walkways surrounding the building. When the roof slope exceeds 1:8, protected from the falling snow are installed on the roof snegozaderzhateli, awnings over the front door, as well as planting shrubs and regulatory approaches to the building. Snegozaderzhateli installed close to the ledge on the continuation of the wall, so that the load extended to the supporting structure. Snegozaderzhateli installed in a continuous series by building. Snegozaderzhateli made of galvanized steel or other corrosion resistance materials.

Fasteners snegozaderzhatelya must be solid construction and fitted in such a way that does not entail the occurrence of the roof. On steep roofs and in areas with high snow load may require several snegozaderzhateley series. For example, in Lahti design snow load 1.8 kN/m2, and in the mountainous areas of Sochi – 6.0 kN/m2. The following table shows the maximum length of the pitch for a single row snegozaderzhateley depending on the snow load and the angle the slope of the roof. In the example highlighted in the table, the slope of the roof 18 'and the estimated snow load is 2.0 kN / mg. At the intersection of these lines are visible maximum length of the pitch for a single row snegozaderzhateley, 9.7 m. This means that if the actual length of the slope is greater than 9.7 m, it is recommended to install an additional number of snegozaderzhateley.

You also need to take into account that, if not installed snegozaderzhateli along the entire length of the slope, but only on certain areas, the actual burden they may exceed the estimated snow load for the area. The actual snow load could exceed the estimated also in the spring after a snowy winter, when the snow the roof is wet and heavy. In this case, you must still pay attention to the structural strength of the roof and, if necessary, clean off any excess snow from the roof. In recent years the market roofing elements bezhopasnosti roof (snegozaderzhatel, fences roofs, ladders, catwalks) acquire an increased interest from both the end user, and from vendors of roofing materials. Please explore the range of one of the producers of the security features of the roof – tubular snegozaderzhateley, roof rails and ladders.

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