Position a ladder against the side of your home, and have a helper hold the ladder while you use it to climb onto the roof. Attach the ladder to the roof with rope so it won’t fall. Exercise caution when walking and working on the roof.
Remove the old roof peak cap from the roof with the prying side of a claw hammer.
Fit a new roof peak cap over the top of the roof. Make it hang over the shingles below it by at least 1/2 inch.
Nail the new roof peak cap to the roof with four to six roofing nails on all sides of the cap.