Snow fence holder155 type BD 350/20

Snow slats and pipes prevent snow avalanches falling from roofs and serve a protective function for pedestrians and surrounding properties.

When choosing a set of roof communication, pay attention to several parameters

• Module length Metal roofing is available on the market in several standard module sizes: 315, 330, 350, 400, 420 or 460 mm. The most commonly used dimension is 350 mm, and dimensions above 400 mm are becoming increasingly rare. Shorter modules, such as 330 mm, have been a novelty for several years.

• The most commonly usedprofiles on the market are 20 mm, 30 mm and 35 mm. Brackets can be used with a tolerance of ± 3 mm. In the case of greater deflection - you can use a bracket with washers or an assembly for this type of covering.

BD (bracket type) - A (module length)/B (profile height):

Example bracket sizes:

• BD-330/30
• BD-350/20
• BD-350/30
• BD-350/35
• BD-400/20
• BD-460/20
• BG-380/35

See the compatibility tab for a list of suitable metal roofing materials.

What does the number of brackets depend on?

• The slope of the roof (the steeper the slope, the more grips required)
• the length of the roof slope (rafters) - above 6 m an increase in the number of grips or even the installation of a second row of railings is required
• in the case of standard rafter lengths, the number of handles is used in accordance with the table below

Note - exceptions!

• When the roof pitch exceeds 55° - always add one bracket to the set.
• When the length of the rafters exceeds 6 m, it is necessary to add 1 bracket for every 2 m of rafters above 7 m. Thus, from 6 m to 8 m - one additional bracket, from 8 m to 10 m - two additional brackets.
• Above 10 m, it is necessary to use an additional row of handrails - about 4 m above the first row. In this case, the lower handrail is installed according to the table above, and the upper handrail according to point 2
• In the case of handrails with a height of 20 cm, an additional bracket should be used.

Note: The above information is the result of collected information and our experience. The above information should not be considered as installation instructions. The use of roof communication should be in accordance with the technical design drawn up for the building, taking into account the requirements of relevant standards and applicable technical and construction regulations. To add additional brackets to the kit, use the menu of individual components.

The method of mounting the handrail to the bracket:

Special slats on the bracket allow quick and easy installation of the snow railing. Simply push the handrail profile into the latches - the new method of attaching the handrail to the latch brackets is extremely durable. No additional tools are needed.

Handrail mounting height:

When installed, the handrail is 65 mm above the base of the latch. For coverings with a module height exceeding 65 mm, installation will not be possible. This applies in particular to:

• metal sheets with a wave height <65 mm
• trapezoidal sheets with a module <65 mm (T-65 profile)
• corrugated sheets with a wave height <65 mm.

Instructions for installation of snow protection:

• Snow guard brackets should be fixed to the wooden roof structure with wood screws in accordance with PN-EN 14592+A1:2012.
• The recommended mounting point for the first row of rails is at the height of the roof trusses
• Edge brackets should be installed so that they are close to the edge of the railing.

Note: The spacing of the brackets, the number of fixing screws and their dimensions should be determined in the technical design, depending on the slope of the roof and the snow load zone, taking into account the load capacity of the elements of about 2 kN.
Screws 6 mm x 60 mm for attaching fasteners to the roof surface can be found here: Screws for attachment of snow guard