The answer to 'gutter guards ice dam' is that gutter guards can help prevent ice dams from forming, but they are not a complete solution. Ice dams occur when snow and ice build up on the roof, causing water to back up and leak into the home. Gutter guards can help keep gutters clear of leaves and debris, allowing water to flow freely and reducing the risk of ice dams. However, gutter guards do not address the underlying issue of heat loss in the attic, which is the primary cause of ice dams.
To effectively prevent ice dams, you'll need to address the root causes, such as poor insulation, ventilation, or air leaks in the attic. Hiring a professional roofing contractor to inspect your roof and attic and recommend appropriate solutions is often the best approach. DIY solutions like adding insulation or sealing air leaks can be effective, but may require specialized knowledge and tools.