| 1. |
Using a chisel and hammer, carefully split the wood
along the grain of the faulty shingle and lift out as much you can. Gently
pry up the good shingle above it so you have access to the nails securing
the damaged shingle. |
 |
| 2. |
Mindful not to harm the decking beneath, use a shingle
ripper to cut the nails anchoring the damaged shingle. |
| 3. |
If needed, cut the new shingle to size with a roofing
saw so that it allows a small expansion gap between the adjacent shingles.
Slide it into place so that it protrudes about ¼ inch below the others
and secure with two roofing nails, driven at an angle just beneath the upper
shingle. |
| 4. |
Position a wood block about one or two inches thick
and about the width of your shingle against the bottom edge (the edge that
is ¼ inch lower than the other shingles). Hammer the wood block against
the shingle edge until you drive the shingle up and even with the others
in the row. The nails should bend and the heads should retreat under the
shingle above. |
| 5. |
If you have any exposed nail heads, slather them with
roofing cement. |
