ROOFING,SIDING,GUTTERS REPAIR AND REPLACEMENT GUTTER CLEANING,POWER WASHING E-MAIL mdroofer@hotmail.com OR CALL US FOR A FREE ESTIMATE AT (240)793-5071 Maintaining your existing roof is one of the best ways to protect your home from major problems. Sometimes the warning signs are obvious. Missing shingles, excessive granular loss, curling shingles and water stains inside the house are some of the more common problems. The most likely placesyou will get a roof leak are the chimney, plumbing vent flashing, ice dams, skylights, wall step flashings, furnace shingles, fields of shingles and missing shingles.