Installation and installation of a snow catcher on the roof

04-02-2018

Roof

Most of the territory of Russia is located in climatic zones characterized by snowy winters. For this reason, the traditional Russian hut is associated with a sharp triangular roof consisting of two slopes. Such geometry provides an independent descent of snow masses and rainwater. Sloping roofs with a slope of 30 degrees and more are still relevant in our area, therefore, to protect against spontaneous evacuation of snow from the slope, snow catchers are used on the roof.

Types and construction

The purpose of the snow guard for the roof is to keep the snow from an avalanche-like descent from the slope, which is dangerous for people's lives. They hold the snow masses, but let the water formed during melting. Snegozaderzhatel on pitched roof installed during installation of the roofing material. By design features, they are divided into the following categories:

Snow Barriers Snow barriers are called blocking fences. With their help, snow remains on the slope of the roof until natural melting. When using this device, the possibility of complete or partial collapse of the snow layer is completely excluded. The snow blocking constructions include corner snow protectors and bows.
Snow plows. Snow-cutters are devices that do not hold the snow on the slope, but divide the layer into smaller parts, the speed and strength of which drops less. They do not protect against the collapse of the snow cap of the roof, but they make this process safer. This type includes a tubular and lattice type snow-holding device.

Important! To determine which snegozaderzhatel on the roof is best suited, you should find out the number of average annual precipitation in the construction zone, the area and the slope of the slope. The snow retaining structure is installed over the slope of the slope, however, for reasons of economy, we can limit ourselves to places where the snow masses are most dangerous.

Snow retention targets

Choosing a roof configuration, builders give preference to steep slopes, effectively coping with precipitation offsets. However, this quality becomes a problem in the winter, when water becomes solid. At this time, homeowners limit the snow from the roof. Snow retention activities serve the following purposes:

Security. The uncontrolled fall of snow mass at high speed from the roof can cause severe injuries or even take a lifetime. To minimize this risk, structures are installed on the slopes, slowing down, blocking the snow layer or separating it.
Protection of roofing material. Snow, thawing on the surface of the roof, warm from the heated indoor air, turns into an ice crust. When sliding off the chute, the ice scratches the roofing material, removing the top sheeting. In places where scratches form, corrosion forms, leading to premature deterioration of the coating. This problem is relevant for the roof of the fold, corrugated and metal tiles.
Keeping track clean. If the snow falls from the roof without delay, then clearing the paths around the perimeter of the house will be a difficulty for the janitor. To reduce the number of cleanings, it is necessary to hold the snow on the roof until it melts under the influence of sunlight.

Tubular snow guards

The tubular snegozaderzhatel on the roof is a system of brackets interconnected by two rows of pipes whose diameter is 10-30 mm. The bracket for fixing the device on the roof is a metal plate equipped with a mounting shelf and holes for the tubes. The tubular snegozaderzhatel is mounted along the slopes of the roof above the bearing wall of the house. He divides the layer of the roof into plates, the fall of which will not harm a person.

Note! In order to give the construction of the snow guard, the lower tube is placed at a height of no more than 3 cm above the slope, and the distance between the tubes is 8-10 cm. , because the energy of the sliding snow is too high.

Installation of tubular screw on the roof

The correct location of the snow cutter on the ramp

Since the distance from the first row of snow guards to the roof overhang is 40-50 cm, they are invisible against the background of the roofing material. Manufacturers produce models of galvanized steel, coated with paint, in harmony with the popular colors of metal, corrugated board and shingles.

Lattice snow holders

Snegozaderzhateli on the roof in the form of a lattice, mounted on the roof slope with brackets, called lattice. They are made from high-quality corrosion-resistant alloy steel. The height of the lattice of such models reaches 10-20 cm, the effectiveness of snow retention depends on this indicator. This design is popular due to the following qualities:

Versatility. The brackets provide for the possibility of mounting the slatted snow guard to any kind of roofing material.
Reliability. Due to its design, the gratings withstand snow layers of large mass, even if the roof slopes have a large area and angle of inclination.
Easy installation. To install the snow lattices of the lattice type on the roof, it is enough to fix the brackets on the surface of the ramp with a screwdriver and roofing screws with a hexagonal head, fitted with a rubber seal, and insert the grid into them.
A variety of colors. Due to the paintwork of galvanized steel in the production process, you can give any color, so the palette of shades for snow retention is quite diverse. If you choose the color to match the coating, the slatted snow guard will merge with the roofing material.

>Важно! Если крыша подвергается большой снеговой нагрузке, решетка снегозадержателей при воздействии обледенелых пластов большого размера гнется и ломается. Для таких тяжелых условий производители рекомендуют использовать гибридную конструкцию, состоящую из продольных труб, вставленных в кронштейны, и приваренной к ним решетки.

Corner snegozaderzhateli

On roofs with a slight slope, the design of which does not allow the snow cap to roll down, and in regions with little snow winters corner snow barriers are used. They look like folded galvanized steel corners with mounting shelves 20-30 cm long and up to 10 cm tall. Most often, corner snow guards are mounted on roofs with a fold, profiled sheet, sheet metal and metal tile with a slope steepness of not more than 20 degrees.

Note! The technology of installation of corners for snegozaderzhateley differ from the installation of devices of other types. They are placed along the slopes of the roof in 2-3 rows along the slope of the roof, observing chess order. The distance from one row to another should be 50-100 cm, depending on the width of the slope.

Despite its low efficiency, the convenience of this type of snow barrier is that you don’t have to go to Leroy Merlin to buy them. You can buy metal sheets in any construction market and make devices for snow retention on the slopes of the desired size on their own, saving more than half the cost. It is easy to install corner snow guards, they are fixed directly onto the roofing material with a screwdriver.

Bugeli

Бугелями называют точечные снегоудержатели, имеющие вид треугольника с длинной планкой для фиксации на склоне. Так как они используются для монтажа на крышах с покрытием из мягких кровельных материалов, на основе битумной мастики, имеющую шероховатую поверхность, их возможности по удержанию снежной массы малы. Bugeli не предотвращают сход снега, а лишь уменьшают скорость и энергию падения. Установка данного типа устройств имеют следующие особенности:

As a rule, the bows are used in combination with other snow-driving structures (tubular and trellised snow barriers).
Bugeli располагают вдоль свеса крыши в шахматном порядке в несколько рядов. Рекомендуемый шаг между соседними элементами составляет 50-60 см, а между рядами – 50-100 см.
The installation of the tows is carried out exclusively during the laying of the roofing material. On the crate mark the location of a number of snow guards, fix their mounting plate to the boards with self-tapping screws and mask with shingles.