Chimney cap repair
A chimney cap should be regularly cleaned and repaired if necessary. Keeping the chimney cap in good shape helps protect your chimney over time.
First of all you have to lay a tarp over the area where you will be working on for safety reasons.
Remove the cap
Using a hammer and chisel, break away the damaged cap or crown, careful not to damage the chimney flue. The broken pieces should be taken and put in a bucket.
Mix the crown mixture in a wheelbarrow, using a hoe. Pour water into the mixture until it reaches the proper consistency and then add bonding agent.
Lay the cement
Take the cement on the roof and apply it on the chimney using a trowel. The mixture must be evenly spread around the flue. Be quick with this task because the cement will harden quickly.
The flue must stick up over the crown about 2 inches. Be sure to leave that room.
To help water drain off more efficiently, you must shape the flue into a pyramid shape.