https://www.extension.umn.edu/environment/housing-technology/moisture-management/ice-dams/

Remember everyone. This is what was happening to a lot of people last week. This is not uncommon when we have snow, then extreme cold temperatures. For all those having leak problems last week, but no leaks when it rains. Don’t worry, most cases you don’t need a new roof. Just remember, don’t put salt on your roof to melt snow or ice. This can damage your shingles, and even void your warranty in some cases. The best thing to do is pull the snow off your roof, or add insulation to your attic to stop this from happening in the future. Also, you can call us or almost Roofing companies will come out and remove your snow from your roof. Remember, your roof is not your driveway. Removing snow from it takes a little different approach. But please no salt on your roof.

Read: 5 Questions to Ask Your Roofing Contractor