How To Repair Roof Leak At Chimney

Inspect the flashing at the top sides and bottom edge of the chimney.

How to repair roof leak at chimney. If portions are missing or bent contact a. If it s sound caulk cracks and gaps with polyurethane. Clean any leaves or other debris out of the gap between the flashing and chimney. To repair chimney flashing leaks.

Attach loose flashing securely to the chimney with masonry nails. How to fix a roof leak around the chimney chimney cap a new chimney cap may keep water from entering the top of the chimney and help keep critters out flexible roof sealant apply flexible roof sealant black jack roof patch rubberized roof cement from a can or tube to fill holes gaps flashing and loose shingles around the chimney. With a person stationed in the attic or inside the house if the attic is inaccessible. Inspect the flashing for gaps or cracks.

Position an extension ladder securely against the edge of the roof. Renew flashing seals by chipping out the old mortar and caulking along the edges of the flashing. Use a chisel to remove any hardened roofing cement. Apply a generous amount of roofing cement behind the flashing.

Extend the ladder up so the top rung is at least. Otherwise hire a chimney builder search online or for chimney builders and repair in your yellow pages or a chimney sweep chimney cleaning certified by the chimney safety institute to evaluate the condition of your chimney and fix it. Apply roof cement to any gaps or cracks. Use special masonry caulk to seal the joints between the flashing and the chimney.

If you feel safe and confident about walking on your roof climb up and inspect the crown. Once you ve assembled the items you ll need follow these step by step instructions. How to fix a leaky roof by a chimney 1. Seal the seam between the cap and step flashing with urethane roofing cement or silicone caulking compound as shown at right.