Posted on January 15, 2014
With January upon us, the warm/chill/freeze/thaw temperatures have created the perfect environment for ice dams. Ice dams form when, with warmer temperatures, the snow nearest the roofing shingles melts. The melted snow/water runs down to the edge of the roof and then, as temperatures drop, it refreezes, forming a dam to keep the next cycle of melted snow trapped.
To prevent ice dams, be sure your roof has proper ventilation, pitch, and shield installed. Also keep gutters clean. To determine if an ice dam is forming, look for these signs: a) icicles behind the gutter; b) icicles between fascia; c) leaks above windows.
If an ice dam forms, the best and safest advice is to call a professional rather than try to work on it yourself. To schedule a free evaluation of your roof, call Columbia Roofing at (410) 379-6100. www.columbiaroofing.com