Trees provide numerous benefits to those living & working in the urban environment, which increase with the trees size & age. However, the older & bigger trees get the more likely they are to drop limbs or branches or cause root damage to the site then inhabit. In managing these trees, tree owners must recognize the tree benefits & risk. Below are pictured of damage that trees can cause  

Storm damages to inside & outside of home & garage.
Branch went through roof and into bathroom

Whether Hazards are created by storng winds or ice storms, or wherther construction on the site may or already has negatively affected the tree, tree owners should recognize tree risk & management strategies to help ensure the trees are able to provide their full complement of benefits.