Winter storms in minnesota and other sections of the upper midwest can dump large amounts of snow and ice on agricultural building roofs which can lead to a roof collapse.
Snowy roof collapse.
This is a rough estimate when no information is available to analyze a roof properly.
Robert champagne principal of summit engineering says that the best way to prevent a roof collapse from snow is to be proactive.
A cubic foot of light snow weighs about 20 lbs.
A worker looks over the scene after heavy snow accumulation caused the roof of a two storey building to collapse saint jérôme leaving several people homeless on sunday.
A good rule of thumb is that if your roof has more than 2 ft of snow then it is definitely time to consider finding ways of removing it.
However combine heavy snow with any of them and you may be in trouble.
Snow roof collapses are rare thankfully this type of incident doesn t happen very often.
For a roof to collapse because of snow on a home that is newer and was designed and constructed properly is extremely rare.
Even an average amount of snow accumulated on a dairy barn roof can easily weigh 200.
The amount of snow or ice that is unsafe depends on the building design.
In most cases excessive snow accumulation on a roof manifests itself in more subtle ways and causes gradual damage over time instead of a sudden calamity.
However a densely packed mixture of ice and snow can weigh as much as 60 lbs.