While snow is heavy, it’s often ice that causes the most subtle and costly damage to commercial roofs. Ice infiltrates seams, splits membranes, and weighs down drainage systems, often going unnoticed until major leaks occur.

1. Ice Dams Cause Water Backup

Ice dams form when melting snow refreezes at roof edges or near drains. Water pools behind the dam, eventually leaking under membrane layers or flashing details.

2. Seams and Membranes Can Crack

Freeze-thaw cycles make roofing materials brittle. As they expand and contract, seams may split, and older membranes may show cracking or bubbling.

3. Drainage Systems Can Freeze

Ice buildup in gutters, scuppers, or internal drains leads to overflow or even structural stress. Backed-up water adds unnecessary weight and increases the chance of failure.

Preventative Steps to Protect Your Roof

• Ensure attic or roof cavity is well insulated and ventilated to reduce ice damming.
• Inspect seams and flashings before peak freeze periods.
• Clear drains and gutters of all debris before storms.
• Schedule regular winter roof inspections with professionals.

Trust Rodd Roofing for Winter Roof Protection

We’ve seen firsthand how damaging ice can be, but we also know how to prevent it!