Snow Holders On A Roof Made Of Corrugated Board, Including An Overview Of The Varieties, As Well As How To Correctly Calculate And Install

2024 Author: Bailey Albertson | [email protected]. Last modified: 2023-12-17 12:53

Snow holders on the roof made of corrugated board: how to choose and install

Decking is a popular, practical and affordable roofing option. However, it should be borne in mind that snow accumulates on it in winter. The corrugated board has a very smooth surface and high heat capacity. The roof heats up under the sun's rays, the snow masses melt, and the ice falls sharply down. This is contrary to safety regulations. Therefore, snow holders are installed on the roof made of corrugated board.

Content

• 1 Purpose of snow holders

  1.1 Video: what can happen to a roof without a snow guard

• 2 Types of snow holders

  • 2.1 Tubular

    2.1.1 Video: Installing Tubular Snow Holders

  • 2.2 Corner

    2.2.1 Video: installation of corner snow guards

  • 2.3 Lattice

• 3 Calculation of roof snow guards

  3.1 Table: calculating the number of snow holders

• 4 Installation of snow guards on the roof made of corrugated board

  • 4.1 Fixing the structure
  • 4.2 Video: installation of snow guards on corrugated board

Appointment of snow holders

The main function of snow holders is to prevent a sharp descent of ice and snow masses, as this can lead to damage to structures, plants and shrubs located close to the house, and damage human health. These devices also prevent clogging of gutters and damage to the facade of the house. The absence of snow retainers is fraught with the destruction of the roofing and damage to the rafter system.

Snow guards are easy to install and have a long service life

For roofing made of profiled sheets, snow retainers are necessary. They are installed without harm to the coating and contribute to the gradual melting and descent of snow masses.

Video: what can happen to a roof without a snow guard

Types of snow holders

Snow stops are almost universal and suitable for all types of roofs. For a more reliable fixation of such devices on a roof made of corrugated board, it is best to choose options that have a certain type of fasteners. Since the profiled sheets have a corrugated or ribbed surface, this can cause difficulties when installing on flat slopes. Snow guards are made of copper, zinc, stainless steel.

For corrugated board, snow holders are selected with reliable fastening

Tubular

Tubular fixtures are a structure of round or oval tubes connected with angle brackets. The tubes are arranged in two or more rows. This makes it possible not only to retain sediments, but also to ensure their gradual convergence downward. At the same time, the snow load on the roof decreases smoothly, there are no sharp drops in the impact on the roofing.

The distance between the pipes and the roof cover allows the snow masses to descend gradually

Tubular snow stops are very reliable and efficient. They are mounted parallel to the roof edge. For this, as a rule, the same self-tapping screws are used as when installing corrugated board. But any other fasteners designed for the roof will do. The complex of tubular snow holders consists of several elements connected in one row. For this, the tubes are joined, angled or flat fasteners are installed at an equal distance. It is worth remembering that with a slope length of more than 5.5 m, installation of snow holders in several rows is required.

Video: installing tubular snow guards

Corner

Angle-type snow protectors are anti-corrosion metal strips bent in the shape of an angle. The height of corner fixtures usually does not exceed 15 cm. They cannot be used if the roof slope is more than 30 °. Then the elements are easily deformed and torn off the roof, which is due to their low strength and resistance to snow load.

Corner elements are used in regions with low precipitation

Angle-type snow guards can be galvanized or polymer coated. They are considered the simplest and most economical. However, the small height of the elements, thin metal, and a large area exposed to snow load make corner fixtures ineffective.

Video: installation of corner snow holders

Lattice

Long lattice snow holders are most effective as they prevent large snow masses from falling and ensure their gradual fall. The structure consists of long lattices no more than 30 cm high. They are attached to special brackets.

Lattice elements keep ice well and ensure its gradual melting

There are models of lattice structures that are attached directly to the battens without damaging the roofing. Such options are more suitable for roofing from tiles, and corner fasteners are used for corrugated boarding. They are fixed on the crate, after which the gratings are installed directly to retain the precipitation.

Calculation of roof snow guards

Snow stops are mounted along the entire perimeter of the roof, as well as over protruding parts of the roof. Docking the elements together allows you to get a structure of the required length. In some cases, snow holders are installed in several rows or in a checkerboard pattern. The calculation of the number of snow holders is carried out taking into account the snow load characteristic of the region of residence. It is also necessary to consider the angle of inclination of the roof and the distance between the brackets. To determine the snow area, you need to use a map on which regions with different amounts of precipitation are marked.

To take into account the regional features of the RF terrain, a special snow load map is used

So, the sequence of actions is as follows:

• we measure the angle of inclination of the roof,
• we determine the snow area,
• we estimate the length of the roof slope,
• we compare the values according to the table.

Table: calculating the number of snow holders

Roof inclination angle, degrees	Snow region	one		2		3		4		five		6		7		8
	Distance. between brackets, mm	600	900	600	900	600	900	600	900	600	900	600	900	600	900	600	900
less than 15		37.7	27.1	25.2	18.3	16.8	12.2	12.6	9.1	9.4	6.9	7.5	5.5	6,3	4.6	5.4	3.9
15-25		23.1	16.8	15.4	11.2	10.3	7.5	7,7	5.6	5.8	4.2	4.6	3.4	3.9	2.8	3.3	2.4
26–37		16.2	11.8	10.8	7.9	7.2	5.2	5.4	3	4.1	3	3.2	2.4	2.7	2	2,3	1.7
38–45		13.8	ten	9.2	6,7	6.1	4.5	4.6	3.3	3.5	2.5	2.8	2	2,3	1.7	2	1.4
56–55		11.9	8.7	7.9	5.8	5.3	3.9	4	2.9	3	2.2	2.4	one	2	1.4	1.7	1,2

If the obtained tabular parameter is greater than the length of the existing slope, then the snow holders are mounted in one row. If less, then you will need to install 2 rows of snow holders. If the difference is 2 times, then it is necessary to install 3 rows of elements, etc.

Installation of snow holders on the roof from corrugated board

Fastening devices to corrugated roofing does not require special skills and complex tools. Before installing the roofing, you need to make frequent crate from the beginning of the slope by about 100 cm. This will allow you to securely fix the devices without harm to the roof covering.

For fastening to corrugated board or metal tiles, the same brackets can be used

Fixing the structure

The main actions are as follows:

1. Brackets are installed on the roof at a distance of no more than 900 mm from each other. Their type is selected depending on the waveform of the corrugated board. The most airtight can be used to fix flat brackets for profiled sheets with a narrow and flat wave. Often the bases for tubular or lattice snow holders correspond to the waveform of the corrugated board. The line of snow guards is located above the load-bearing wall and close to the eaves.

   

   The brackets are placed over the load-bearing wall of the building.

2. The fixing of corners or other brackets is carried out using roofing screws, which are simply screwed into the already prepared holes. Under the corrugated board, there is a frequent crate and therefore the fasteners are screwed directly into the boards. After that, tubes or grids are installed, fixed with crimps or locking fasteners.

   

   The tubes can be arranged in one or two rows. Depending on this, the height and design of the brackets are selected

3. Thus, snow guards are mounted along the entire perimeter of the roof and above the ledges, taking into account the required number and distance between the elements.

   

   For corrugated board with a narrow wave use flat brackets

Video: installation of snow guards on corrugated board

Devices for uniform melting and descent of snow masses from the roof are practical and easy to use. Snow holders allow you to eliminate the risk of a sharp collapse of ice, deformation of the roof and avoid other consequences of the accumulation of precipitation on the roof.