Repair Roof Flashing Around Chimney

Wide strips of ice and water barrier.

Repair roof flashing around chimney.

Seal the seam between the cap and step flashing with urethane roofing cement or silicone caulking compound as shown at right. Use a chisel to remove any hardened roofing cement. Apply a generous amount of roofing cement behind the flashing. Flashing is often metal and repels water away from roof joints and fixtures.

Galvanized roofing nails through the front edge of the flashing to hold it in place. Most of the time roof leaks occur because the sealing around vent pipes has failed the metal flashing on the chimney has deteriorated or the connections between roof sections have eroded. According to the federal emergency management agency fema improper roof flashing could lead to wood rot and even deck collapse. Completely replacing the flashing costs 400 to 1 000 which includes resealing and replacing the surrounding shingles.

Roof flashing repair costs 200 to 500 on average for skylights chimneys and vents. Before going up on the roof to do the replacement it is recommended that measurements are taken around the chimney so that the flashing can be ordered. Once you complete the tearout and clean up shingle up to the bottom of the chimney photo 2 and seal around it with 12 in. Clean any leaves or other debris out of the gap between the flashing and chimney.

Chimney flashing is usually found under the shingles at a 90 degree angle. To repair loose roof chimney flashing. It is attached to one side of the chimney and one side on the roof. Turbo poly seal makes it easy to seal between the bricks and it makes a perf.

Use special masonry caulk to seal the joints between the flashing and the chimney. The only way to repair flashing is to replace it.