Snow retention

Modern snow retention can be divided into two types of structures:

1. Structures that let through snow masses.
2. Structures that do not allow snow masses to pass through (snow barriers).

The purpose of the first type of structure is to gradually pass the snow masses through itself and at the same time reduce the kinetic energy of the sliding snow mass to a safe level.

The purpose of the snow barriers is to completely obstruct the removal of snow masses from the roof in any form.

Snow retention, passing snow masses , can be divided into several types :

1. Tubular snow retention,
2. Lattices
3. Snow retention for soft roofs ( “teeth” ).

Snow holders that do not allow snow masses can be divided into several types :

1. Snow "logs" for a roof,
2. Snow slats for the roof.

• Due to their capacity, tubular snow holders and snow retainer lattices do not allow the accumulation of large snow masses on the roof. Passing snow masses through themselves, they allow them to go down from the roof down in flattened portions, while reducing their kinetic energy to a minimum and preventing their destructive effect.

Requirements for the support of snow retainers of this type:

1. Ability to withstand rated load,
2. Mechanical strength
3. The tightness of the connection.

This type of snow retainer can also vary by the type of roof for which it is intended (snow holders for roofs made of metal tiles , ceramic tiles, profiled sheets, etc.). Recommendations for the use of this type of snow retention:

1. On a copper roof, only copper snow holders must be installed.
2. Snow retention pipes must be oval , as Such a profile allows them to withstand most effectively critical loads without high deformation .

• Snow retainers for soft roofs (“teeth”) are an original design designed exclusively for soft roofs . Soft bitumen roofs, due to their insignificant heat conductivity and protective coating, allow significant snow masses to accumulate on the roof. This type of snow retention can be used as additional insurance against the convergence of snow mass from the soft roof.
• Snow barriers for the roof by their principle of action do not let down a single snowflake down from the roof. The effectiveness of this type of snow holders is limited by their height . Such snow holders can be used only on roofs that do not contribute to the accumulation and retention of snow masses: ceramic, cement-sand, etc.

Installation of snow retainers is carried out during the installation of the roof. In order to avoid violation of the waterproofing of the roof, reliable rubber gaskets are used as a sealant. The distance between the fasteners is determined depending on the angle of inclination and the slope of the roof. In case the roof has a large angle of slope and a steep slope, snow retainers are installed in several rows . Snow retainer brackets are attached to the roof crate in order to avoid destruction of the roof during sudden and voluminous gathering of snow masses.

• additional roof insulation;
• uniform distribution of snow load on the roofing system;
• the ideal solution against the collapse of the snow mass;
• uniform melting of snow;
• aesthetic appearance of the roof;
• ensuring the safety of people;
• reducing the level of possible damage to nearby buildings and territories.

• Roof
• Metal tile
• Roofing materials

• Security features. Roofing \ Roofing materials
• Safety on the roof. Safety on the roof

• Panasyuk M.V. Roofing materials. A practical guide .. - M .: Publishing house "Phoenix", 2005. - 448 p. - 5 000 copies - ISBN 5-222-07353-x .
• Demidov N.V. The basics of roofing craftsmanship. - Rostov-on-Don: Publishing house "Phoenix", 2000. - 448 p. - 10 000 copies - ISBN 5-222-01456-8 .