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Articles tagged with: Snow Loading

Snow Loading in Trees

on Saturday, 23 March 2013.

By Mark Mortensen, ISA Certified Arborist, RM-1002

A common request is to thin a tree out excessively with the anticipated outcome of allowing snow to pass through the branches minimizing the chance of broken limbs from spring or fall snow storms when the deciduous trees are in leaf. Another common concern is that the trees branches will touch or rest on the roof as a result of snow loading.

If this request is fulfilled and the tree is excessively thinned the tree may actually become more vulnerable to storm damage. Let me explain why a denser tree can better survive and “weather the storm” without storm damage or limb failure.