When snow accumulates on a roof, a cycle of melting and refreezing occurs. This refreezing gradually forms what is fondly known as an "ice dam", a growing heap of ice that blocks the path of the melted snow.
Once this dam forms to a certain height, the melted snow that pools up behind it can suddenly leak back under the roof shingles and into your home! On a roof with a low slope, it only takes a small ice dam to cause water backup and leakage.
Don't let Ice Dams cause you problems this winter. Call us at (781) 665-3269 and let Crowell Construction protect your home from leaks and damage.