To repair leaks caused by metal flashing around chimneys and dormers
To repair leaks caused by metal flashing around chimneys and dormers, simply reseal joints with a caulk gun of roofing cement. If you see damage to joints previously sealed with a line of roof cement, apply a fresh new coat with a putty knife. If you are replacing a row of shingles, or if you find that shingles lift from the roof easily, it may be time to call in a professional roofer to inspect the situation. Spot repairs will not extend the life of a roof in need of replacement.