Hello,
our shell construction is already finished, and I noticed that the snow guards on the roof are installed in three rows only at the very bottom. Snow guards are meant to prevent snow from sliding off, and if a roof avalanche breaks loose from the top, they won’t do much good just at the bottom. Wouldn’t it be better to have them distributed across the entire roof? What are your thoughts on this?
Here is a photo:
Regards,
Lilik
our shell construction is already finished, and I noticed that the snow guards on the roof are installed in three rows only at the very bottom. Snow guards are meant to prevent snow from sliding off, and if a roof avalanche breaks loose from the top, they won’t do much good just at the bottom. Wouldn’t it be better to have them distributed across the entire roof? What are your thoughts on this?
Here is a photo:
Regards,
Lilik
I
Irgendwoabaier12 Jul 2013 23:03No, that’s fine. Such a snow slide doesn’t start at the ridge. If it happens, it’s because the stability at the bottom is missing, it breaks at the bottom, and only then does it pull the entire mass off the roof. Usually, a significant amount remains at the ridge, and often even up to the middle of the roof stays in place because the connection beyond the ridge is still intact.
There is a reason why mountain dwellers have been nailing their beams to the roof from below since at least the late Middle Ages.
There is a reason why mountain dwellers have been nailing their beams to the roof from below since at least the late Middle Ages.
In my town, I haven’t seen anyone use a pattern like this for installation. Everyone either has snow guard fences at the bottom or snow guard hooks distributed across the entire roof. I would really like to understand the reason behind my setup. What could be the cause? Could it be due to the roof pitch? Ours is 32°.
Best regards,
Lilik
Best regards,
Lilik
I
Irgendwoabaier13 Jul 2013 14:35Hi,
The flatter a slope is, the more difficult it is for it to slide. Then it depends on the snow loads that need to be considered. This determines the density and type of avalanche barriers required. The same applies to the roof – the steeper it is, the more hooks will need to be distributed over the entire surface. You always have to consider the risk of a crack forming in the snow layer – the better it is supported from below, the lower the risk, and eventually, you might be able to do without the hooks. In your case, there is good fixation at the bottom, and the roof is not that steep, so this should be sufficient for moderate snow depths.
If in doubt, ask the roofing planner – it definitely also depends on the assumed snow load, and from here I can’t see what snow load you need to expect in your area...
Regards,
I.
The flatter a slope is, the more difficult it is for it to slide. Then it depends on the snow loads that need to be considered. This determines the density and type of avalanche barriers required. The same applies to the roof – the steeper it is, the more hooks will need to be distributed over the entire surface. You always have to consider the risk of a crack forming in the snow layer – the better it is supported from below, the lower the risk, and eventually, you might be able to do without the hooks. In your case, there is good fixation at the bottom, and the roof is not that steep, so this should be sufficient for moderate snow depths.
If in doubt, ask the roofing planner – it definitely also depends on the assumed snow load, and from here I can’t see what snow load you need to expect in your area...
Regards,
I.
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