One of the most highly damaged items in a hail storm is a roof. Once Cherry and Clark Roofing Toronto material is damaged by hail, moisture can penetrate the roofing material, eavestroughs, and siding, and cause more damage inside your home. This moisture creates a breeding ground for mold and mildew. Over time, the wood will rot and the structural integrity of your home will be compromised. Hail can cause roofing damage that only professional roofing contractors can fix.